Join Date: Mar 2002
Location: Austin, TX, USA
Re: Shifter issues on Th-350
I had similar issues except with a 700R4. What others are saying about the detent plate is correct - the PG unit doesn't have as many lands as the 350 has gears.
But in my case, the main issue what the stroke of the shifter cable was limited to 2" and the bellcrank on the transmission was too long to sweep all the gears. I crawled underneith, disconnected the sifter and took some measurements between the cable bracket and bellcrank as I manually twisted the shifter shaft. I figured out where my bellcrank needed to land and drilled a new hole. I probably could have purchased something that would work better, but it works just the same.
My advice would be to measure the stroke of your cable / shifter before messing with the detent plate. You'll probably find as I did that the cable will only retract and extend so far and the rest must be made up with the bellcrank on the shifter shaft of the transmission.
68 Coupe, 350 w/ Edelbrock Performer RPM heads, cam, intake, 700R4, Dave's small body HEI