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RiCorvette · 07-02-2012, 03:36 PM

I have a Challenger that also uses the TR6060 and came across this,
This is writeup is for the T56, but the TR6060 is similar and apparently the same goes for it:

Here's the trick:

Remove the big bolt that is high up on the passenger side of the T56. The bolt will take a 15/16" or 24mm socket to get it off. No fluid will come out. No springs will fly out. Nothing catastrophic will happen. This bolt has a ball and spring setup behind it that applies pressure to a detent in the trans.

What you want to do is to shim out this big ol' bolt with a washer (or washers) by about 1/16" to alleviate some of the pressure on the spring. Go either to NAPA and get part #704-1357 or Pep Boys or Autozone will have the same washers as a Dorman Oiltite part #65277. These are 13/16" or M20 copper oil drain plug washers and the pack of two costs $1.79. Yup. That's all! Put two of these washers under the bolt I described and tighten it back up. YOU WON"T BELIEVE THE DIFFERENCE IN YOUR SHIFTS!!! IT'S AMAZING!!!

My car has always been hard to shift...really notchy going in and out of gears. It always felt to me like hitting a wall in between shifts. I got the MGW and it helped a little. I've done the RP tranny fluid and I even did the friction modifier fix but neither one did much to help mine. THIS DID THE TRICK!!! Now it shifts smooth as silk. Try it. Bet you'll love it!

http://www.challengertalk.com/forums...address-81133/

http://forums.viperclub.org/threads/...ansmission+mod

http://www.z06vette.com/forums/f5/an...ift-mod-84344/

07-02-2012, 03:36 PM	#1
RiCorvette Drives: 2017 Corvette Grand Sport 3LT Join Date: Oct 2010 Location: Center of the known Universe Posts: 863	TR6060 Notchy Feel fix? I have a Challenger that also uses the TR6060 and came across this, This is writeup is for the T56, but the TR6060 is similar and apparently the same goes for it: Here's the trick: Remove the big bolt that is high up on the passenger side of the T56. The bolt will take a 15/16" or 24mm socket to get it off. No fluid will come out. No springs will fly out. Nothing catastrophic will happen. This bolt has a ball and spring setup behind it that applies pressure to a detent in the trans. What you want to do is to shim out this big ol' bolt with a washer (or washers) by about 1/16" to alleviate some of the pressure on the spring. Go either to NAPA and get part #704-1357 or Pep Boys or Autozone will have the same washers as a Dorman Oiltite part #65277. These are 13/16" or M20 copper oil drain plug washers and the pack of two costs $1.79. Yup. That's all! Put two of these washers under the bolt I described and tighten it back up. YOU WON"T BELIEVE THE DIFFERENCE IN YOUR SHIFTS!!! IT'S AMAZING!!! My car has always been hard to shift...really notchy going in and out of gears. It always felt to me like hitting a wall in between shifts. I got the MGW and it helped a little. I've done the RP tranny fluid and I even did the friction modifier fix but neither one did much to help mine. THIS DID THE TRICK!!! Now it shifts smooth as silk. Try it. Bet you'll love it! http://www.challengertalk.com/forums...address-81133/ http://forums.viperclub.org/threads/...ansmission+mod http://www.z06vette.com/forums/f5/an...ift-mod-84344/ Last edited by RiCorvette; 07-02-2012 at 04:16 PM.