ZF8HP75 Teardown 

Amazing technology on these transmissions. Also amazing to watch a mechanic work who actually knows what he is doing. Very cool.

Another classic Gary, over the years I have learnt a lot from you, heartfelt thanks .🙏🙏

Still working on my 6hp26 but please know, you are my number 1 person for information and guidance. The best!

I was able to save about $5000 by watching your videos on a Rover sport Transmission! Got it back in the car this week, and it shifts like glass!! Thanks Gary! I'm confident in rebuilding another one. Hope you enjoyed the gift card I sent.

thanks for sharing gary i wish you the best

thank very much ...

Someone give this man a proper camera... and set it to 1080p... 😉🙂

Had the same problem on a bmw x5. Re sealed the gearbox, fitted sonnax pressure plates to d clutch and a clutch new clutches etc. 4 weeks later car came back with the exact same problem. This time we put a new d clutch drum into the vehicle. 4 weeks later vehicle came back with exact same problem. We gave the customer his money back :( There didn't seem to be a reason why this seal kept tearing. The clutch clearance was OK and the drums seamed perfectly OK. How many have you had do this? Did urs stay out of the garage for more than 4 weeks lol

These look fimilar. Working for FCA, we are only allowed valvevody or unit replacement. They do not even let us tear down. Cool to see the insides.

Thank you, Gary!

No way this goes back together 😂

Thanks Gary, what is the possible cause of 8hp70 wont go in drive gear, but will move in reverse? The scan software shows that when shifting into drive, the current gear stays in neutral. The only CEL code is P1DB8 Unintended Torque Applied While In Neutral, this only showed up after reving the engine in drive, but didnt move. No grindage or noise. I do see a little metallic dust in the pan. The shift cable is still attached. I cant find info about this issue. I checked all of the solenoids and they are ohm perfect.

I always wonder, is it even worth the trouble rebuilding a transmission? Some many man-hours needed, not to mention the cost of buying and shipping new parts. On the other hand, a completely new transmission is certainly expensive too. But, fortunately or unfortunately, I am sure there are many usable transmissions sitting in junkyards. Since the transmission is well protected in the middle of the car, the trans is likely useable in all those wrecked cars, no? Sure, some of those might already have 50-100K miles on it. But they can go for another 100K miles with just a simple maintenance job of changing the fluid and the seals.

Hi i am a new subscriber ..keep up the good work...

Great find on the torn seal. Why do you think this happened and why were some of the other unrelated clutches heated? Aggressive driving? Poor assembly at the factory? Hoping 50K isn't the life expectancy of these transmissions.

One day i will rebuild this transmission.. when chrysler actually lets us

Hello Gary! Thank you for the video, why Change the pistons?

Why does the fluid always seem black inside the trans housing yet the pan fluid is lighter? Shouldn't the pump circulate fluid throughout the entire trans?

Very interesting video. What does "rolled" mean? Is it poor installation, where the ring gets twisted instead of sliding smoothly in? And then it fails prematurely because the rubber is twisted? Also, why do the clutches show burning? Is it from hard driving? I have an f Pace SVR with 8 speed ZF, and I am wondering if repeated hard acceleration could shorten the life of the transmission.

Hi Gary thanks again for another very exciting and informative video Learning a lot from your videos Just one question regarding your test plate is it for just this particular transmission or can it be used to test on other zfs Thanks and be safe

Thank you.

Hello Gary, I have an issue and maybe you can help. I have an BMW F34 and from what I could gather it has this exact type of ZF8HP on it. It has 252k kilometers and when it’s downshifting it jerks a bit in lower gears 3-2-1. I just changed the oil and pan (filter incorporated in pan) hoping that will cure the symptoms but it didn’t. The oil was quite clean for the mileage and the magnets on the pan had no metallic flakes or anything out of the ordinary, just a bit of normal clutch debris. What do you think it might be the issue, could an adaptation reset software update fix it??? Thank you! (Great videos btw, keep them coming!)

This transmission is on my Jeep Gladiator. It's super smooth. The manual says it's a "lifetime" sealed transmission but I think that's just until the warranty is expired lol. What mileage would you suggest changing the fluid/filter? Would you do an entire flush or just a standard/partial fluid change?

Thank you for the video, I do have a question though. I have a 2020 RAM 1500 8hp75 with the start/stop feature. I noticed that the transmission in the video has a metal pan and a filter, not the plastic all in one pan. Is this an after market pan or is it standard on the 8hp75 transmission?

Hi gary where i can buy that tester plate ??? can u let me know thanks your video share again love watching your Chanel

Gary, I have a question about this transmission. I have it on my 2014 BMW sedan, 60,000 miles. I’m going to change its oil and pan. But some people remove the mechatronic assembly and replace four rubber sleeves inside. I have no failure symptoms, so is there any reason for that added step, or should I just drain the oil, replace the pan and refill per standard 2-fill procedure?

Hello from dubai. Thanks for amazing informative videos. In which all bmw this transmission is used .

when I build my trans i completely disassemble the valve body and carb dip it so when I reinstall the valves and springs etc... all of the left-behind particles are gone. do you fully rebuild the valve bodies also ????

Amazing video . Appreciate that you sharing this with the world . Would love to do mine when its needed. Just a question for non native english how would you describe flare shift ? Regards from Poland

Is there a part number for the air check plate that you use for the eight speeds?

great video! im rebuilding a ZF8hp65 now i found clutch C frictions are all burnt the rest were fine any idea what can cause that?

where did you buy the air test plate Gary?

Hi Gary, another amazing video, what was that ring you put in the outside before you removed the snap ring for?

It's posible to do the air check without the plate? I can't find where to buy one or any plan or measures to make one

That X6M had to have a tune

Hi Gary, I have a bad vibration in 6th gear on 8HP75z from 1500rpm under load on a 330e? The gearbox was rebuilt and the flywheel replaced. The torsional vibration damper was also checked by BMW. The problem persists and no-one can figure out why its happening. Any idea what could be causing this?

I don’t mean to be rude or anything but i was just wanted to ask why you don’t use gloves? Everyone has there own reasons and you being a master at your craft it made me curious as to why you don’t. Thanks

Great vid! can you give us a ball-park price on a standard rebuild of one of these?

2015 bmw x5m getting output speed sensor code 421278 and harsh shifts ideas!? Really appreciate same transmission

Is the zf75 in the b9 s4?

is this the same trans as the hp75-lcv?

33:22 tellerfeder