How to Remove a Allison Transmission 

On install and removal videos you should make a list of all the steps and put that in description for us to print out

Great video! I do think you showed everything step by step and left out the small talk. I have pulled 2 of them and both times they were much easier to pull than any car trans I’ve worked on. The bolts on bell housing on top are tough but hey, life is tough. I just have to get in there and do it

Great. Having some electrical issues right now from mice this Michigan winter as I parked my truck. I really like some of the angles you showed so I could see those wires. Got a lot to check for.

New LBZ owner and I definitely subscribed as soon as I found the channel. Thank you for your service and isn't it great to be retired? I have been for two years. I seriously want to relocate to get in on the Dmax brotherhood and be closer to those awesome shops!

Josh those guys took care of with that trans I’m happy for you bro you deserve it. It must feel good to have a fresh transmission done by the best! Now you can roll those 35’s all you want.

Thank you guys so much, I'm not sure what the wiring harness is called but it's the one that you have to pinch the sides and pull off, I searched videos and yours was the only one I found that showed how'd to get the harness off.

Best way to turn the fly wheel and torque is a 1 1/2in wrench on the crank, can't hurt either if a pry bar never touches them. Thanks for the vid

I get to do all of that fun stuff in a few weeks since my bellhousing and rear engine plate are cracked. All due to a bad shimmy from my rear u-joint on my 1 piece rear drive shaft. Great how to video.

Big help thank you

I have one of these one a 6.0 ls they bolted oil pan behind flywheel had to pulls trans just for oil pan on brinks

Another great video

Awesome video! Love your channel! Liked + subbed Best regards from Sweden 🇸🇪

im sittin here on boc duty i must of watched atleast 4 hours of your videos. i purchased my first vehicle 06 LBZ dmax about 4 months ago 170xxx miles for 10k. alot of upgrades already done. i enjoy watching your videos thank your for the knowledge. shoulda been a 91b. Not a 88M. ALL THE WAY AIRBORNE

Drinking game: take a shot every time he says “go ahead”

That was awesome!!

Just an FYI apparently there was a transmission vent leak on many Allison trans applications. They will blow fluid out the vent on the back top of housing on the left side. It's from a little design flaw or poor communication from Allison and the other manufacturers. The dipstick tubes need a vent, or remove the vent on the trans and extend it up higher at firewall etc. Possibly work to drill a hole in dipstick tube. Apparently there's TSB on it and random info in a search. Part # 15115171 (Updated???)Transmission filler tube- has slot or holes at top #10-07-30-001A: Fluid/Oil Leak During Cold Weather from Transmission Vent 10-07-30-001B: Fluid/Oil Leak During Cold Weather from Transmission Vent (Early Models-Replace Transmission Fluid Level Indicator and Install New Transmission Vent Assembly) - (Feb 7, 2011) Subject: Fluid/Oil Leak During Cold Weather from Transmission Vent (Early Models-Replace Transmission Fluid Level Indicator and Install New Transmission Vent Assembly) Models: 2001-2011 Chevrolet Silverado 2500HD-3500HD Series 2001-2011 GMC Sierra 2500HD-3500HD Series Equipped with Allison® LCT 1000 Automatic Transmission (RPOs M74, MW7) Condition Some customers may comment on a small red fluid/oil leak during cold weather. Upon further investigation, the technician may find a small fluid leak in the area at the back of the transmission by the vent. Cause This condition may be caused by fluid being discharged out the transmission vent. During extreme cold weather, (approximately -25°C (-15°F or colder), Dexron® VI and other conventional transmission fluids become extremely viscous. When this highly viscous fluid is circulated into the vent area, it becomes trapped and it is not able to properly drain back to the pan. As the transmission warms up, the expansion of the air inside the transmission can force the trapped fluid out the vent and leads to small drops of fluid being discharged. Correction Only on 2001-2004 models, replace the transmission fluid indicator (dipstick) with a new vented indicator, P/N 15794381. On 2001-2011 models, remove the stock vent assembly and run an external tube and vent up to the front of the transmission to a mounting bracket. The extra length of tube allows the expelled fluid to be trapped and later drained back into the transmission.

thank u so much!!!

Do you have to support the engine when you pull the transmission. If so where do you support it?

Clear as can be.👍

I know this is old but what did you do to this transmission? Complete rebuild?

What stall are you running with your 68 mm? I have a 1900-2200 (DK) Goerend Torque Converter.

You guys skipped the part where you take the flywheel bolts out that’s the part I’m stuck on right now and I don’t want to take the top fan cover off to spin the crank or is that the only way I can’t turn the flywheel with that little hole where the starter goes

What size are the flex plate bolts

Hi,where is the location of allison temperature transmission sensor?

Will you please do a more in depth video on the 64mm and 68mm I believe turbos that Ryan’s diesel service offers? I’ve looked everywhere and I really want to run one but I can’t really find too much info on them video wise. Thanks 🤙🏻

Hey, huge fan and this has nothing to do with this video and it’s personal, but what’s a rough number and time period on painting a truck

The best way to roll your torque converter is a socket and really long ratchet on the harmonic balancer bolt on front of the crank

I'm removing the allison from my '03 GMC. Everything is disconnected and the transmission comes loose except for right around the aligning stud on the left side of the trans. I have pryed etc. but can't break it loose. I certainly don't want to break the housing - any suggestions? Can I apply heat without increasing the danger of breakage?

Would've been a good time to install your new transmission lines

They make that look so easy lol. It aint.

Wax your truck an put some tire shine that thing sittin nice👍

Did you have to take out the down pipe

I just pulled my trans had a u joint out and broke bell housing rear tail housing and rear engine cover

Can you sneak the transfer case out on a non lifted truck without taking the torsion bars out?

I have a 2001 lb7 it would crank but won’t start. It was running before and then it cut off after 20 minutes of it running. I feel like it’s not getting enough diesel. what is wrong with my truck??

Holy crap. I guess its worth paying someone to do this. I don't see this going smooth in my driveway

Were you aware that you can no longer Tune trucks anymore? Idaho Rob closed his shop down. Check out Adrenaline Truck Performance. The EPA is cracking down and shutting illegal tuning down. So keep what you have and tuning is hard to come by nowadays. It is all over the Duramax forums. PM me for more details. Cheers!

👌👍🏻

Yeah 3 hrs on a lift be more like 15 hrs on my back

Sorry to bug you again sir, but your channel is to help ppl learn stuff. I’m trying to learn. I have an 05 LLY and my buddy has an 04 Duramax (different engine code that i can’t recall now) but, we both have recently replaced water pump, power steering pump with all new hoses, alternator, and replaced all pullies with new... we both now seem to have an issue with the both trucks whining. It does not whine when it’s cold . After warming up, it whines loud to us... . Nobody else seems to be able to hear it but it’s there. We have checked everything we can think of. The only thing we can think, the OEM power steering pumps just whine from being new. Has anyone you know ever heard of this? The truck runs great... it does not cause or have any issues. We just know our trucks and can hear it. Any tips to check? My mechanic has listened with a stethoscope and can’t really pinpoint where the noise comes from.

You talk too much get to the meat and potatoes am hungry for 😃 😊 😀 😄. A few hours later , Dang great video dude. I like how you zoomed in to show the torque conv bolts. So not looking forward to doing that part. I hope you bought them a case of cold " LEMODADES "

Horrible detail on how to

The size of all the bolts your taking out would be very helpful in this video. And for that reason I’d say it’s not that great of a Allison removal video

Lol. So u just film other ppl working on ur truck 🤔.

God Bless you all! All glory to God! Turn from your sins and live for God! Romans 10:9 “if you declare with your mouth that Jesus is Lord and believe in your heart that God rose Him from the dead you will be saved.”

As a transmission rebuilder and converter rebuilder you are doing so much wrong. First don’t ever! Turn the converter by digging at the converter with a pry bar! Do you know what that does inside the converter? You use a special wrench to turn the crank on front of the engine on a duramax/ Allison trans. Take the cross member out before you do transfer case. Your working way to hard around it. Never use hammer on cooling lines to remove.