Tremec T56 Transmission Rebuild - Part 4 - Final Assembly 

I dont know why these videos dont have more views, comments, and likes. Great job at showing and explaining the rebuild. Thank you for making these. It has taken most of the fear out of it for me........most of it :)

Hey, I wanted to thank you tons for producing these videos. I started on my t56 from my 93 Trans Am in April of 2019, ever since my 3/4 gear keys snapped. I just finished it 10 minutes ago. I don’t know how I would have been able to complete this without these videos. I did everything the right way/how the pros do it and I even got my mainshaft machined by Texas Drivetrain Performance as well (Jason there was super helpful). Up to this point I haven’t done anything as advanced as this and I’m glad someone thought to share their learning experience with the internet so everyone could learn. Thank you so much again and I hope your cts is running great still!!! P.S. Instead of a normal rebuild, I decided to faceplate my trans ;) Good day to you sir!

I keep watching & learning so much, I'm in the middle of my t56 teardown... really appreciate the detail. Thank you

I've watched all four videos - some of them twice. So informative. Thanks, Chris. My 2007 CTS-V has 237,000 Kms on it and is running fine but I can see a rebuild needing to be done sometime in its lifetime. That said I choose to burn gas in fifth gear rather than lug sixth up a hill or even into a headwind while on the highway, as I've read that lugging can take out fifth; sixth; and reverse. With the aerodynamics of a barn I like to err on the side of the small expense...!

Again , Thank you so much for taking the time to make this video... super helpful

Thank you for so much information in a well communicated dialogue

Awesome video series, very informative. I recently had my T56 rebuilt and made a video from the process as well. Very neat to see the process and inner workings but I wasn't equipped to DIY mine. Just wanted to say great work on the thorough job and explanations :)

great series.every diy guy needs a good reference video when tackling something new.i used yours.Thanks for the help!

When installing a new input shaft only, is it necessary to change the countershaft bearing shims? Since they are set before the input shaft is installed, it shouldn’t effect them, correct?

The T56 Tremec transmission in my car occasionally slips out of second & third gear which has been more noticeable when the weather is cooler,the transmission has done about 332,200 kms and is in need of an overhaul. Since I only have 1 car to drive so I will be looking for another transmission to rebuild,on the Gumtree website (in Australia) someone in South Australia is selling one with a damaged 4th gear & countershaft gear, brand new aftermarket gears cost about as much as used gears on Ebay,the transmission is available for $550 or $600 AUD but would blow out to about $2000 AUD transmission once it is freighted to me & parts are ordered, then it would be like brand new. Someone else is selling one for about $500 AUD in Sydney ,it just needs new 3rd gear synchros so one of them would be the best bet. If I came across a worn spline on the mainshaft I would either just use Loctite 660 to fill the void between the spline & gear or take the shaft & gear to a local engineer (Teterin) where they can spray weld the shaft to reclaim the worn surface. I would look at doing it once I hopefully score a job soon plus I have to replace the camshaft & lifters on the easter long weekend (hopefully),I bought a used stock 12560965 camshaft yesterday locally for $35 AUD which is as good as a new one anyway. The LS1's in Australia use the LS6 intake stock from 2001 (mines a 2002 car) but they used the 99-00 Camaro camshaft in all of the LS1 engines. Just other goodies I have to buy for it such as a new timing chain,new hydraulic lifters,oil pump,timing cover gasket kit, intake manifold seal kit,exhaust manifold gaskets,cylinder head gasket & bolt kit, etc.

When you pressed the 5/6 gear on the main shaft, did you support the input shaft while doing so? I am having a similar issue with my new shaft and new 5/6 gear. Unfortunately the new shaft doesn't have threads in the end to press the gear on with. I wasn't sure if it would be ok to press against the front cover or would it be better to support the end of the input shaft to press against.

Good shit bro!

Hey Chris, had a question for you. I’m swapping the tailhousing for my T56 and I can’t get it to go on. It’s an aftermarket AMP unit, and I’ve transferred all bearings and reverse idler gear. Is there a trick to it, or am I supposed to have it in a certain gear? Thanks for your time, and great videos.

Thank you for the video! It is videos like this one that take the guess work out of the mysteries of a manual transmission. I will now tackle this job without hesitation. How was the end result? All well with the T56? I have an issue: Are there any areas I need to focus on as I have a terrible vibration that is speed dependent. If I am running 60mph+ the vibration starts and only increases with speed. New/different rear center section, two driveshafts both balanced by independent shops etc. etc. and no change.Push the clutch in and let the driveshaft rotate the output shaft and its the same vibration. I feel it is in the back half of the transmission. Maybe tail housing bushing? Any feedback will be appreciated. Thanks,Tony

Do you know what the diameter of the shaft is that connects to the offset lever, what roll pin size it is and where to buy that specific offset lever? Looks like it's an aftermarket part?

Hey Chris, excellent videos. Really helping me with my rebuild. My transmission has the exact same issue with the 5/6 cluster gear being loose. I actually today just called Jason at texas drivetrain to get a repaired shaft. I have a question for you: when you go to put the gear on, can you start it in the mainshaft splines before the press fit starts to grab the gear? I dont want to start to press it on and have to rotate it after because the splines wont line up. Also can you put this gear on first before the counter shaft extension? What do you think of heating the cluster gear in an oven to assist installation? Thanks a lot man

Whats the price range for rebuilding this transmission? My Chevy SSR fifth and sixth gear are not engaging.

Great videos and thank you for the detail, depth and explanation. These videos have helped out greatly. I do have a question though, where did you purchase the rebuild kit from?

How much pressure did your 5/6 gear take to get on? I have a new shaft and trying to press the 5/6 gear on and it seem to have stopped. Its got another 1/2 inch or more to go. I'm afraid to put to much pressure down on the shaft.

Do you have a suggestion on putting the Shift rail bolts in? When I put mine in, it locks everything up and would not let me shift it. They also would not go in evenly. The top left one only goes 3/4 way in and then stops. The right one goes all the way down but locks everything up.

Great videos! How much time did it take to do everything? I have a broken T56 sitting on my garage floor that I've been thinking of opening up to find out why I lost 5&6 gears a couple years ago.

i need to change just the rear housing with the drain, anything important to know or just unbolt and replace? thanks great vid btw

When you pressed the 5th/6th gear assembly onto the main shaft did you take the front plate back off and support the shaft? Or did you press with everything together and transfer the force of the press into the front input bearing and race? This can brinell the bearing race and cause premature bearing failure.

What kind of sealant if any do you use on the tail housing to case mating surface? Also do you know if that shim under the race in the tail housing would need to be checked/changed if replacing the housing with a new one?

Just watched your series of videos. I know it's been awhile. Is there a list you can provide of must have tools and such?

You said the max countershaft extension endplay is 4.5, where did u find that spec #'er? Is it ok to set to 0?

Hi there, I need some help figuring out where the tiny ball bearing on the button @ 6:30 in the video. You have it laying on the towel with the detent spring, tail cover rail and bolt that goes on the adapter plate. Any help is greatly appreciated.

Really appreciate your videos! Around 7:00 in you have the trans on your press and the 5/6 gear is about 1/8" down on the splines. My T56 currently sits exactly like that, and it also had the mainshaft 5/6 journals repaired by TDP. But even in my press I can't get the 5/6 gear down any further... any advice?

Chris my son has taken part and reassembled his t56 2000 Camaro several times, can't get 6th gear, sounds like grinding a little bit. all other gears work. any help is appreciated. he is going nuts. he has 5th and reverse.

Hi chris Is this a T56 or Tr6060 trans.. As far as i know this is Tr 6060 As all the T56 come with fixed shifter !!!

Is this the same procedure if you are putting in upgraded parts to handle big power? (i.e. Viper output shaft)

I have a lt1 t56 I have to do this to Very nice But my car pops out of reverse it will not stay in rev ihzvetojpld it as hard as I can and it barly let's me It doesn't grind orpopout any other gear

What gears are those at 5:32?

Why does the title say TR6060 but when the video starts it is a T56

Just watched all 4 of these very detailed and informative. Just one small gripe... You are measuring thousandths of an inch, stop saying "mills".

Thanks for skipping over the shift rail install