Did I Waste $4000 on a DIY Transmission Rebuild (47RE)? Let’s Find Out! 

why did I watch 38mins of someone repairing a transmission that I will never ever do? That's how good your videos are

Insane quality of content. There are so many problems with youtube, but you're one of the reasons why I'll never leave.

I don't have this truck, I don't have anything with the same engine or transmission. But someone out there does, and nothing drives me more wild then watching these build or repair videos where the techs have every special tool and house made jigs that no one else would have. I can't state my level of appreciation that you skipped using as much of it as possible for this video. Please make more of this. More refit, repair videos of how anyone would have to do it in their driveway or garage. Cars, trucks, motorcycles, lawnmowers, whatever, anything, just more! Great work as always!

Holy crap! Much respect for those of you that do this for a living or a DIY shade tree mechanic! Makes complete sense why it costs so much to have this done!

Just remember, there Will be a DIYer out there with a tablet set up in their shop watching this as they rebuild a transmission. The money saved, the satisfaction of doing it themselves, and the boost to their ego to be able to try even more new jobs is worth every penny you put into this (and all of the other videos) video. The country needs more content like yours for building confidence in our youth. Thank you for all you do. By the way, your happiness at the end was infectious.

As a mechanic that previously worked at a transmission shop, you did a very good job rebuilding and explaining the process. Gold Star!

This video is insane, well done! I can't imagine how many hours the rebuild, editing, and voiceover took to make this video. Thank you for all your hard and quality work!

THIS is the content I come back for, I love DIY repair. Not accepting sponsors is a huge financial sacrifice on your part and it means a lot to me.

Most youtubers skip this kind of content because they fear of boring us... Truth is, this type of content is what's the most interesting. Thank you for respecting our intelligence.

Saved 60k from building a new truck and helped the environment a ton as well. Hell yeah for keeping old vehicles goinf

It was very kind and considerate of you to have the mechanics talk about various topics, what tools they liked and essentially make them part of the video. That was actually my favorite part, because everyone already knows you make the best comparison videos.

I contemplated DIYing the trans in my old passenger full size van but ultimately decided to pay a professional ~$3000 to redo it since this vehicle was taking two families on a road trip 2000 miles. My guy did a great job and not a single regret swinging the money to have it done right. Having seen this video some years later I feel even more justified in my decision. Great video!

My Dad was an automatic transmission guru. This video finally made me appreciate how talented he was. Thank you

Most people have no idea what a marvelous invention the automatic transmission is! And I would never even think of attempting this! Great show Todd! 😎✌️

The best most honest channel on RU-vid and no freebies shows a man and his true character! A great honest man I respect you and what you do

Insane how far this channel has come from humble beginnings, still just as good as day one. Thank you for quality content.

I will probably never rebuild a transmission myself, but it was a pleasure to see so much positive emotions at one video. Such a pleasure to watch you, sir 👍

I cannot emphasize enough how great this guy is at narrating technical processes like this.

I have been a homebuilder and working on small and heavy equipment for over 20 years and I still learn things from this channel.

My fingers hurt from typing it so much, but you do a great job on these videos. I just can’t forget when you started. And I loved them then, but what this channel has turned into is just a testament to dedication. Everything is spot on. I’m a seasoned mechanic, and don’t often look for help on RU-vid, but just imaging how many vast topics you have covered that will help so many people. God bless you, your family, your friends, your channel, and your future.

I probably watched 30+ videos from Precision Transmission when they were posting regularly. While the tear downs were great, it was pretty rare to see the reassembly. I really appreciate the work in this video. The content was great, and the extra contortions you went through staying out of the camera view so we could see the work is really appreciated.

I'm always amazed at automatic transmissions and the amount of planning that went into not just the design but the assembly steps.

I love how you can take one of the most feared processes in the auto mechanic world, and break it down to layman's terms. This video is amazing, I hope you never stop making them!

I am a diesel technician for caterpillar, and man I have so much respect for you. Especially your tool videos. If you started exposing snap on manufacturers, there's literally no end to attention your channel would get. Snap on Cresent Wrench and pipe Wrench is no doubt mad by Bacho. Keep up the great work !

I like that he replaced all the seals and bushings even though some of them “appeared ok.” If you’re going to do the work and time required to rebuild a transmission, then you should always replace wearable parts that appear ok. “If you’re going to do it, then do it right!”

Your concise editing makes watching a topic of this complexity a breeze. While I cannot rebuild a transmission, I still learned a great deal.

Thanks for the collab video! The first of many to follow I'm sure! Thanks for always steering us towards the best tools!

FANTASTIC video! You are the only one who owns a Cummins that Admits to the actual MPG! Ask everyone else they are getting 25-30 MPG!

You never waste money Project farm! Thank you for everything you do! Must be so much fun to see the results in real time. Oh and Merry Christmas brother!

Automatic transmission rebuilds are just about the scariest thing to me working on a car. Amazing job and thank you for the content!

The Power Driven Diesel guys are awesome!!! That was a great collaboration!!! 👍🇺🇸👍🇺🇸👍🇺🇸

Great video! I needed my 68rfe rebuilt in my truck, ended up deciding to do it myself. A weekend and a couple nights later it was fixed, at 20 years old with no formal training! Definitely not too hard, just a whole lot of snap rings! I appreciate you showing that something that sounds as daunting as rebuilding an automatic transmission, isn't too hard if you put your mind to it!

this video feels so different from the typical diy videos on youtube. the way its presented is exactly like how project farm normally does its reviews. the ability to mention all the important details while keeping the quick pace is really really good

This channel is great. Im just starting to watch this episode and want to say this as a mechanic, retired on disability... Not every mechanic, let alone every person who sets out to do this job can complete it properly without any surprises when done and installed in the vehicle. With that said, any decent mechanic CAN rebuild their own automatic transmission if they set their mind to it, take their time, and keep it Clean! If you are in a hurry then forget it, dont even start the project. If you are the kind of person who has what it takes then you will be successful. Dont try to rebuild a particular model of tramsmission if you've never done that particular kind and somebody brought it to you disassembled in a box. Disassembly is important for the inexperienced trans builder. Also get some folding tables, as you will need alot of space as it comes apart and you place assemblies together as they come apart. This will make it much easier for assembly, as your brain can look at the table and remember the order in which things came apart, therefore your brain can reverse gears to go back together. Another point in the success of your first rebuild is Dont Skimp on parts...which does translate to cost. Its not worth it if a $2 seal could cause you to have to do the whole project again immediately after completion. In this vid, our dude is also doing upgrades over stock. If coming from a reputable company then i highly support these mods. With that said things can get crazy if you are not an instructions reader. Dont be that guy, or gal...read the instructions for non stock mods. For that matter, have a book or detailed printout of the particular trans you are working on. You will need it for your first and even second time. In closing, if you are confident in your skills then go for it. If not then you already had your answer. Make sure you have plenty of space, and time. And tools. As an example, first time i built a 48RE mopar trans behind a cummins diesel is when i realized it was time to go to harbor freight for the 20ton press which ive needed for years but turned out mandatory to take apart and reassemble the od pack spring (forgot what its called, ill call it big ass spring). In the end, the builder/mechanic/home wrench who decides to take on this project will be rewarded with all kinds of pride and satisfaction once thar vehicle is cooking down the road 10k miles later and shifting perfectly. In your mind you will remember all those small details you went thru and realize you are the one responsible for it to work properly again! The personal satisfaction is real and worth it...if you got it in ya'😎

Honestly this is probably the best series explaining how to do diy Cummins modifications. Very good man the smile on your face says it all! Congrats!

It is fascinating for a layperson to see the innards of a transmission. Makes me appreciate the mechanical complexity we tend to take for granted even more. This channel has to be some of the best and most honest content ever produced period. Thank you for all of your hard work.

Might sound silly but possibly a new stud finder video? Seen a lot of new products out there and I’m in the market for a new one so genuinely curious if anything has drastically changed. Always a fan of the videos man, a huge help when I’m adding to the ever-growing collection of tools!

Wow! That was awesome. So good that you went through the whole rebuild. TYVM! Traveling mercies to you and yours, and whole shop crew. Shalom.

The amount of knowledge you must have to conduct all the testing you do is phenomenal. By far my favorite RU-vid channel. So much to learn from in each and every video! Thanks for all the work you put into your content.

It's amazing that someone was able to design a transmission and understand every single part and measurement requirement! Also, amazing that you were able to explain all this in great detail! Thanks for sharing!

Nicely done Todd! As a mechanic myself it definitely put a smile on my face seeing yours after pressing on the 'gas' pedal. That feeling of sinking in your seat watching the speedometer climb up, there's nothing like it! I'm so glad to see you upgraded the truck the proper way too, tuning on a budget is often an engine living on borrowed time. As always, your content quality is second to none and you're doing a terrific job with the editing too! Have yourself some quality time with your family during the coming holidays and definitely a well deserved vacation! ;)

What a great video series Todd, I really enjoyed it! I think it was a brilliant move to rebuild that truck, you have something that will last for many years to come and runs amazing!

Watching this video reminds me sitting in a physical chemistry lecture hall many moons ago. Just as then, I am literally dazed and confused at the amount of technical information being spewed at breakneck speed. It literally leaves me feeling dizzy. Geezus auto transmissions are so freakin complex. Even more shocking is that there appears to be a 1000 different ways to make a mistake getting a seal reversed or a gear either flipped the wrong way or misaligned during the build. Hats off to all you transmission specialists that are able to pull this off. Just wow!

It's also nice to see these young guys working in the field and it appears they enjoy it. Tell them to keep at it.

I've never done mechanical work on a vehicle and likely never will. Yet I still watched this whole thing. I watch all almost all your videos. I used to enjoy that my Dad could explain things on such a wide range of subjects (pre-internet, mind you). Channels like yours help me feel like I am honoring the tradition.

Great video. This brought back awesome memories af watching and helping my Dad rebuild Transmissions at the Dodge Dealer he worked for. I recall how I was amazed at how complex they were inside. Thanks for bringing those memories back for me!

Great video, because of the content I am now confident about rebuilding my own 4L80E transmission. Thank you so much for the time and effort very much appreciated…

Wow - a whole new level of respect for the places like Power Driven and the work they do. Custom building a transmission seems (as long as the core is still decent) the best way to go with all things considered. Great video, Todd!!

As an old retired master tech, I am super impressed with Todd's DYI upgrades. This truck is SO MUCH better than a new one. Very impressive!! Nothing beats a properly built Cummins; as the saying goes "six in a row ready to tow"...

Wow! that was crazy! I am AMAZED! i can't Believe how much more my love for standard transmissions is after watching this!

Wow, fair play to you man, definitely one of the most intelligent and hard working RU-vidrs out there, a true engineer. Top respect as always. 👊🏼

What a great series. Loved the credits interviews with the team at Power Stroke. The guys in the trenches hardly ever get the recognition they deserve. Says a lot about their bosses that they didn't hog the spot light. Kudos on the $300 in the ratchet!

Wow. What an unbelievable video. Incredibly concise but packed with detail. I can’t even imagine how long it took to edit this. Great job. I’ve never seen a transmission rebuild explained more clearly. One of your best videos ever!

Being a DIY'er my whole life been a huge fan of your channel for years, best content! I learn HEAPS of useful tips. At 28 I've been dealing with a spinal fusion and more for 3 years now and cannot wait to get back into doing things. You're content keeps my techy head on straight. Awesome video as always!

Automatic transmissions, especially the older analog ones, and the people that work on them and designed have always been a sort of amazement and fascination for me

A few days in the life of a guy that has captured the mind of every guy that likes to see how well things can work. Taking no sponsorship and being completely transparent with your methods is what we want to see. Be careful...you may be on a hit TV series before you can say no. Keep it coming...

Way to go keepin’ it real for the DIY guys!

This is an excellent video! Thank you Todd! Not only was this video entertaining, but extremely detailed as well! I really appreciate the detail and work put in to clearly show the complexity of a transmission rebuild. After working on Honda 6AT and 10AT’s I have a huge appreciation for the engineering that goes into transmissions. This video was not informative but clearly shows the intricacies of a transmission. You didn’t have to do it the hard way but you did anyway. VERY IMPRESSIVE!

Thank you for making this!!! This is the best transmission rebuild video I've seen! I very much appreciate you explaining what each part does and how it affects shifting as you take it apart.

THIS WAS AWESOME TO WATCH. I’ve always wanted to see how an automatic transmission torn down and put back together to have a general idea of how it works! This series updating the truck has been really enjoyable!

You sir, are a gem! Every mechanic, engineer and tool head needs to subscribe to your channel. You could easily be the best test engineer I’ve ever met, and I worked with many.

YOU are the MAN ! I have no "new" vehicles... and I do all the work, My cars and Airplanes as well... Great video.

I was always scared of opening ATs... now... I am far less scared of any work I may have to do on my truck. Great vid!

The quality of videos you produce is second to none. Absolutely the #1 channel on RU-vid. I’m always waiting for around lunchtime on Sunday to see what’s going on around the Project Farm shop.

No disappointments ever on this channel. Have to say it was nice to see you making a video that actually benefits you as much as us fans. That's pretty rare on this channel. Thank you again for another episode of great content.

Excellent video. Superb results. Nice work!

Can i say, I love how you present things, to the point, clear, and explains some nice details.

I see so many 2500 and 3500 diesel trucks sitting unused in peoples yards, and instead of repairing they give up on them and go out and buy a new $60k+ truck they can’t afford. I’ve brought many old diesels including a 12V like yours that were given up on back to life for not much money plus a little time and effort. Thanks so much for setting this example for those who might have spent a lot more than they could really afford.

Anyone that ever wonders why labor costs so much they really should watch this video. I love this channel.

Nice project! Thanks for bringing us along!

Just AMAZING is all I can say ! I keep thing....Hope he remembers where the 2 million parts go , LOL ! Great job and you are just a incredible man that can do anything. Next week do a heart valve bypass replacement but no Harbor Freight parts for THAT one ! Loyal Project Farm viewer since the start. A+++++++++++++

As a fan of the old Precision Transmission channel I learned what a hugely complex system a transmission is, so major props to you on this rebuild. VERY IMPRESSIVE! 😀

Todd, I knew you knew your stuff from watching your videos, but seeing you work on the transmission tells me you have the skills to really get the job done!

I've seen other transmission rebuild videos...but this is the first one i have seen that actually made me think i might be able to do it myself! I love that you broke the rebuilds down by shaft...that makes a massive difference! Thank you, sir!

Loved this, I wish you did all the training videos I watch at work. I could watch and listen to you teach people things all day. Great presentation and delivery, keep the great videos coming!

One of the best transmission rebuild videos I've seen. I have never attempted one after discovering how many special tools I should have, but here you discuss all of the common issues people will run into, proper alignment of seals and other parts, and explaining the differences between what a stock rebuild would call for vs a performance rebuild. All of that with top notch production values.

I really like that you asked them about their favorite brands and tools in the end, that's what it's all about :D.

Another great video as always. I’m not very mechanically inclined toward cars, but you conveyed the information in a way that I could understand! 10/10 channel.

THIS is high quality content! Thank you for sharing your rebuild with us.

Hey! At one point I was going to rebuild transmissions at home for a money making hobby. Cant wait to see what you've found. Thanks for this.

Man, I really appreciate your videos so much. Always massively helpful and informative!! 🙏🏾

Very impressive! And that is exactly why I don't mess with transmissions. For her age and mileage, your transmission was in remarkably good shape. A testament to how well you maintain your vehicles.

I never realized how insanely complex an automatic transmission is. It was really interesting to watch!

Your broad and deep level of knowledge is just remarkable! Just had my truck transmission replaced for $5k, and now i see why two transmission shops only offered replacement not rebuild.

I've never changed my own oil, but I was glued to this video. It just goes to show how well made these videos are!

I could never imagine myself doing the overhaul DIY, but really enjoyed watching it. And it was nice of to have those guys say a few words at the end.

I work in a transmission factory. Done every job in the plant. Could build one start to finish in probably an hour at this point. Really fascinating see you cover this.

I love the change of pace with this video series, it's cool to see you work on something in addition to all the great tests that you do

So happy you did these 2 videos. It was very informative and now I want to attempt this in the future.

Wow, great video on the transmission rebuild! I've never taken a transmission apart, so this was a treat to see the internal parts and how each part interacts with the others. You did a fantastic job showing each part and explaining why the parts need to be replaced and the tolerances. If you're ever in need of an engine rebuild job, I'd love to see you rebuild an Alfa Romeo 4 cylinder with the aluminum hemi head 1960-1990's. And a rebuild on the 5 speed manual transmission would be great to see too!

This channel has no boundaries when it comes to showing what it takes to perform some repairs or make good tool choices. It also helps customers see what we go thru to get their vehicles back on the road every day. :)

00:27 🔧 Upgrading the engine without addressing the transmission can cause issues, leading to power disparities between the two. 00:55 🛠 Rebuilding a transmission without professional equipment is feasible but requires skill and patience. 01:37 🏗 Upgrading parts like the flex plate and torque converter to handle increased horsepower is crucial for performance. 02:35 🔄 Understanding the valve body's role in controlling transmission fluid flow is essential in transmission rebuilding. 03:16 🛠 Replacing components with Billet steel improves durability under high pressure and power conditions. 04:13 🧰 Checking and replacing worn parts like the second gear band and servo contribute to improved performance. 05:23 🛢 Careful inspection of components like the transmission filter and sprag assembly prevents future issues. 06:22 🛠 Overhauling components like the overdrive unit ensures proper function and prevents potential damage. 07:46 ⚙ Attention to detail during the disassembly process aids in identifying potential wear or damage in crucial parts. 08:15 🧩 Splitting and rebuilding subassemblies separately minimizes confusion and errors during reassembly. 09:23 🔩 Lubricating seals and components during assembly helps in proper fitment and longevity. 10:19 🛠 Achieving proper clearance between components like clutches ensures optimal transmission performance. 11:16 🔄 Upgrading worn parts to higher-quality materials like GPZ clutches enhances durability and function. 12:43 🛠 Using specialized tools or improvised methods aids in precision during assembly and installation. 13:40 🧊 Applying transmission fluid and grease at contact points ensures smooth operation and longevity. 14:37 🔄 Careful alignment and verification of part seating guarantee proper reassembly of complex components. 15:48 🛠 Inspecting and replacing wear-prone parts like thrust washers prevents future mechanical issues. 16:29 🧰 Proper lubrication and meticulous assembly sequencing are crucial for successful transmission rebuilding. 16:58 🛠 Rebuilding a transmission involves careful assembly of various parts, ensuring proper alignment and lubrication. 19:47 🧰 Inspecting gear sets and bushings for wear is crucial during the rebuild process, even if replacements might not be immediately necessary. 21:56 🧰 Replacing seals, bushings, and gaskets with precise installation techniques is essential for preventing leaks and ensuring proper function. 25:14 🧲 Methodical installation of various components like clutches, bearings, and spacers, along with adjusting bands, is vital for transmission performance. 28:28 🛠 Pressure testing and air checks verify the transmission's hydraulic integrity before completion, ensuring proper functionality. 29:41 🧰 Installing the parking rod and valve body securely requires attention to detail and precise positioning within the transmission. 30:09 🧰 Attention to detail in assembling the transmission pan, filter, and ensuring proper fluid levels is critical post-rebuild. 31:05 🚗 Insight into the inner workings of a torque converter provides a deeper understanding of its role in transmitting power within an automatic transmission. 33:25 🚗 Testing the rebuilt transmission and witnessing the significant power increase following the rebuild process showcases the success of the project. 35:02 🚗 The truck's performance significantly improved post-upgrades, reducing 0-60 mph time to 7.5 seconds from 10 seconds. 35:30 ⛽ Fuel efficiency increased by nearly 2 miles per gallon after upgrades, notably due to timing, injectors, and turbo enhancements. 36:14 🔧 Snap-on is preferred for tools, though Harbor Freight boxes are present; a unique $32 ratchet with a hidden compartment is showcased. 37:47 🛢 Regular transmission fluid changes every 30,000 miles are advised to prolong transmission lifespan; no freebies or sponsorships involved in the upgrades.

I'm a mechanical engineer... it's 3:30 am.. I'm in bed, and I can't sleep. I checked my mental list of things to take apart & put back together tomorrow.. Wait!!! This video is freaking awesome!!!😊

Great video. I am about 90% through my first automatic rebuild,a 4L60E for my Envoy XUV. I watched a ton of videos about the process and this was as thorough and easy to follow as any of them. Great job.

This is a great project! I rebuilt a 42RE it looked almost identical and all the procedures were same. I even disassembled the overdrive section with the 830 pound spring, grandpa made me a special hollow press tool to remove the snap ring while compressed in a shop press. Like you, I didn’t touch the valve body. Ran great until I wrecked the vehicle. $400 fix instead of a $3000 shop bill but took me 2 weeks as an 18yo. You brought me nostalgia as that project was 12 years ago

I have no idea what your professional / educational background is, but it’s clear you are no average “DIY-er”. Like your videos you make good sense and appreciate you don’t just go fishing for clicks. Good content, wise choices on what to test and how to communicate it.

The standard of your work as always is phenomenal! Thank you for your dedication!

“Tire spin at 70mph, VERY IMPRESSIVE!” Love it! Such a great build, and a nice look at modifications not just for go-fast stuff. But real world uses.

Great job Todd! I especially appreciated better understanding how the new transmission helped re transfer of energy and efficiency and 0-60. Absolutely the right move to upgrade both. Hope you get thousands of more miles on your truck!

I didn't understand 90% of what you said or did to that transmission but watching you do the repair showed me that diligence is the key to do things right. I'm very impressed with the improvement it made to your truck. I've always known that it's more cost effective to repair what you have over buying new. Great job Scott!