smokeyco75
Member
Okay, didn't want to hijack someone elses thread so I figured I would start a new one. I contacted my Uncle for an answer for another thread. While I had him I also asked him how to firm up the shifts in a th-350 without spending a fortune. He said you can do it almost for free and proceeded to tell me how. The following is a direct quote from him. He is an ASE certified transmission expert and a retired instructor. In the 70's while working for Volvo he developed a special shift improvement kit that became a Volvo part number on the parts shelf. Needless to say he knows his trade! Here is the quote; pull the cover from the 1-2 accumulater on the passenger side, remove the oil rings and reassemble. For a harsh 2-3 shift remove the valvebody and remove the seal/ring from the 2-3 accumulater and reassemble. After the transmission shifts the first time it will shift firm afterwards. Just be sure to use a heavy duty intermediate sprag otherwise the transmission will not survive.
This is exactly what he did with my transmission in my Camaro and it survived 5 years behind 485 horses and as far as I know is still in use today.
This is exactly what he did with my transmission in my Camaro and it survived 5 years behind 485 horses and as far as I know is still in use today.