T56 rebuild?

[eaks]

Hey all

I've had my mamba srt10 for just over a year.. Car has 42k miles on it and seems to run pretty well.. Since I purchased the car it has had issues going into 6th gear. It doesn't grind but it simply won't go into gear for a couple seconds. It does seem to go in a bit better when double clutching but not sure if it's just the extra delay from the double clutch or if it is actually helping out.

I am planning on installing a Paxton blower this fall/winter and am considering also pulling the transmission and having a look at it. I am mechanically inclined and will be installing a 2nd 4 post lift in my garage this weekend. Do you think a t56 rebuild is doable and what are the recommended rebuild kits (most I've seen online are people who rebuild and not actually selling kits). I plan to make 650-700whp so not sure if different gears are required or not ( would expect not).. I also like the 6th gear overdrive for getting some what acceptable mileage on the highway and don't mind the current gearing.

Do you think it's just a synchro on 6th that is my issue or something else?

Thanks all

 

[Goggles Pizano]

If you search, you will also come up with the Gen3 diff is weak too.

And there are rebuild kits available all over the web for the tranny.

 

[eaks]

I was able to find a couple different rebuild kits (after posting this) but more curious what would be recommended with upping the power to the ~700whp levels). Suggestions on diff for this power level?

Also curious if anyone has seen a similar issue with 6th gear and corrected it?

Thank you

 

[Old School]

I don't know the limits of a T56, but I replaced mine with a TR6060 from a Gen4. It's close to a bolt in.

 

[99RT10GTS]

Link for the 700HP rebuild kit?

 

[eaks]

Link for the 700HP rebuild kit?

Not sure if you were asking me. I am unsure what power levels these rebuild kits handle which is why I was asking for some support/knowledge from the group.

I found this rebuild kit:

T56 Transmission Rebuild Kit for Camaro, Firebird, Cobra, & Viper

Late model performance specialists, offering parts at competitive prices, LS1 LS2 LS3 LS6 LS7 LS9 LSX

www.tickperformance.com

I will reach out to companies closer to when I am ready to do this but was looking to get some info prior. The price of a tr6060 doesn't seem too outrageous and since I dont have issues with my trans (outside of the getting into 6th gear as noted above) if I dont get some reliable information I will most likely just run the car as is and if I have issues budget for a new tr6060. If I get some good information or when I start to reach out to the companies providing the rebuild kits I may still go that route this fall/winter.

If anyone has any additional information or details I would love to hear it.

Thanks everyone

 

[daveg]

I don't know the limits of a T56, but I replaced mine with a TR6060 from a Gen4. It's close to a bolt in.

T6060, better tranny than T56, smart move.