Tremec T56 Transmission Rebuild - Part 4 - Final Assembly
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- Опубліковано 5 кві 2016
- The final video in my T56 rebuild series. In this video we put the whole thing back together and measure the countershaft extension clearance.
Part 1 - Initial tear down of the T56 Transmission: • Borg-Warner T56 Transm...
Part 2 - Rebuild of mainshaft assembly: • T56 Rebuild - Part 2 -...
Part 3 - Setting the mainshaft and countershaft clearances: • T56 Transmission Rebui...
Part 4 - Final Assembly and Countershaft extension clearance: • Tremec T56 Transmissio... - Навчання та стиль
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 :)
Thank you Shannon! I appreciate that feedback a lot!
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!
Thanks for the feedback, John! I'm really glad I could help! Car and trans were running great when I sold it so I could upgrade to a 2014 CTS-V. As far as I know, the new owner is still enjoying it at ~260K miles!!!
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...!
great series.every diy guy needs a good reference video when tackling something new.i used yours.Thanks for the help!
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 :)
I keep watching & learning so much, I'm in the middle of my t56 teardown... really appreciate the detail. Thank you
Glad to help!
Thank you for so much information in a well communicated dialogue
Again , Thank you so much for taking the time to make this video... super helpful
Glad it was helpful!
Good shit bro!
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?
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 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?
That's correct. You shouldn't need to adjust them. Good luck!
Whats the price range for rebuilding this transmission? My Chevy SSR fifth and sixth gear are not engaging.
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.
mcgarnicle201
I think it was around a month start to finish but mostly because I had to send the main shaft out to get welded up for a larger diameter for the 5/6 gear and also because I broke my leg shortly after pulling the transmission from the car (you can see the crutches in some of the shots). Good luck!
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
Hi Mike, Yes - I was able to get the splines started. I also made sure to greases them up. I think putting the gear in an oven first is a great idea.. However, I don't think you can put this gear on first, unfortunately.
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.
When I placed the transmission on the press, it appears that I just rested it on the case. The press fit shouldn't be *that* high, so it should be OK.
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.
It sounds like your shift rails aren't lined up properly with the case. My guess is that the whole assembly is probably twisted if you don't have one of the shift forks correctly installed in the gear assy.
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.
I'm pretty sure I installed mine while in neutral and I don't recall there being any tricks. Sorry I can't be more help..
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.
I'm not sure how you'd take the front plate off with the rest of the transmission assembled this far. If you are an idiot and press down with the full force of the press, then you're correct - you could damage the bearings, but the Tremec installation manual instructs to press this gear down in place. Read page 4-3 here: www.tremec.com/anexos/TRSM_T56_0711.pdf
@@SlideruleRacingProducts They also show a tool that screws into the back of the shaft that does a push pull. How ever mine new shaft does not have the threaded hole like the old one did.
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?
All of the parts you saw in my video were OEM cadillac parts. I do not know the diameters of those components.
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?
@evsnova74 - I used standard gray engine sealant. I would definitely check *all* of your clearances if you are replacing any of the housings.
Chris Bruno could you give my a call/text 3133293950 Regarding my transmission T56
i need to change just the rear housing with the drain, anything important to know or just unbolt and replace? thanks great vid btw
If you are replacing with a unit from a different transmission, then it could impact your clearances. See 8:50 in the video. Good luck!
@@SlideruleRacingProducts Hi thanks for the reply its a new genuine rear gearbox cover although im probably going to get a gearbox rebuild specialist to refirb the bearings now aswell
Is this the same procedure if you are putting in upgraded parts to handle big power? (i.e. Viper output shaft)
Well, as far as I know, the basic construction is the same, so I would say yes, but I haven't ever installed or disassembled any of those builds to know what kinds of nuances there are..
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?
I remember after the reworked shaft it took a bit of effort on the press to get it on. You could use a little heat, but if you think its too tight don't go too crazy - you may never get it off again. Good luck!
@@SlideruleRacingProducts Thanks for your response! In the end it took removing the transmission front cover, setting the bottom of the mainshaft directly on the press, applying ALL 12 tons from my Harbor Freight shop press, heating the gear, and hitting it with a hammer to get 5/6 gear to fully seat. It was a little tricky to reassemble the transmission with 5/6 gear already in place, but man what a hassle. I'd say the 5/6 gear is definitely in the "never coming off again" arena.
@@tcolesen I'm sure that was a major hassle.. It never goes perfectly smoothly, right? Good job getting it back together!
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.
Yeah, mine took a lot more pressure to put on as well - I assumed it was because I had my shaft built up to fix the original looseness from wear.
@@SlideruleRacingProducts my 5th gear is a 33 tooth. I assume you're is a 37t? I wonder how much wider the 37t is compared to the 33t. I was able to slide the case off with 5/6 still on main shaft. Think I'll press the new 5/6 gear on before installing the main shaft.
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?
The ring clamp pliers were really important to have - I've referenced them elsewhere in the comments I believe on at least one of the videos. Having the press is also nice. Some dial indicators for measuring the clearances makes it easier. Most of the rest of the tools are pretty standard. The green goo assembly grease I think helped as well. Good luck!
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.
It sure sounds like his 5/6 gear lever has a problem. Check it for cracks or the pads for strange wear. Also, read this thread: ls1tech.com/forums/manual-transmission/1902869-t56-6th-gear-issue.html
I have a 2002 C5 Z06 Corvette T56 I'm rebuilding. The M12 rod doesn't fit through the counter-shaft extension. It's too big. How do you measure the end-play on mine?
chbrules It's not supposed to go *through* the countershaft extension, it's supposed to thread *into* the extension. If for some reason the 2002's were not M12, the use whatever correct thread it has on its ID.
Yeah, I re-read the Tremec docs and see I'm a dummy. It says exactly that. I tried it and it worked. Thanks for the reply! :D
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.
If it's what I think you are asking about it goes under the hex bolt that is in the top front of the transmission. You can see it clearly in the 1:57 mark of my Part 1 Disassembly video. Good luck!
That said, it was a long time ago that I did this rebuild and I may be wrong.. But if its sitting with that detent spring on the towel, that's most likely where it went.
@@SlideruleRacingProducts I called tremec and turns out it goes on the mainshaft right after the 1st gear on the half moon spacer/washer. Thank you for taking time to reply. Your video was very helpful!
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
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
I drove it for another 30K+ miles and it was still working great when I sold it. On mine, the one thing to pay attention to was the 5/6 gear fit. If that is loose, you'll definitely get vibrations. I had the shaft repaired, but in retrospect, it probably would have only cost slightly more to replace the gear and shaft with new.
@@SlideruleRacingProducts Thank you
@@SlideruleRacingProducts I know it has been a while but I have to ask another question after re-watching the video series. You used an M12 threaded rod to set endplay of the counter-shaft, how did you use the same hole to check the counter-shaft extension? If the threaded rod threads into the counter-shaft and there is now preload on that shaft, how were you able to check the extension?
@@anthonylawrencesnow Go back and watch #3 again. You'll see it doesn't thread into the countershaft - it goes through it and then you use a nut on the far side and I machined a small sleeve spacer on the front side - when setting the preload on the countershaft. Then when you do the extension, it threads into that, if I recall correctly (it's been a while).
@@SlideruleRacingProducts I see says the blind man! Sorry, 100% my oversight. Thank you sir!!!
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 !!!
Nope - this is a T56 out of a CTS-V. Many of the T56 shifters are configured differently depending upon the application.
You said the max countershaft extension endplay is 4.5, where did u find that spec #'er? Is it ok to set to 0?
I got all of the specs out of the Tremec service manual. www.tremec.com/anexos/TRSM_T56_0711.pdf
@@SlideruleRacingProducts thanks Chris. One thing that I wasn't able to find was any info on the shift rail detent mechanism that's in the front plate. Was there any torque specs for that bolt?
@@canadagoose3812 I don't recall, sorry.
What gears are those at 5:32?
Those are the 5/6 gears - referred to later in the series as well.
Just watched all 4 of these very detailed and informative. Just one small gripe... You are measuring thousandths of an inch, stop saying "mills".
I didn't think I was old, but I guess I'm old school. I learned to call a thousandth of an inch a 'mil' a long time ago. Hard habit to break. The other old timers will know what I'm talking about. ;-) en.m.wikipedia.org/wiki/Thousandth_of_an_inch
@@SlideruleRacingProducts good point. Referring to thousandths of an inch as mils is legitimate. I guess it's just a peeve of mine because I'm an engineer that works with old prints based off inches and create new prints based on the metric system. Using "mils" to refer to thousandths of an inch is too easily confused with millimeters when communicating changes with clients.
Why does the title say TR6060 but when the video starts it is a T56
No where in my title does it say TR6060, so not sure what you are referring to.
@@SlideruleRacingProducts apologies, I search it and I would swear it said it that is why I clicked it.
Thanks for skipping over the shift rail install
You bet