Theoretical transmission upgrade P-30 454
I have a 1989 Mallard Sprinter with the Chevy P-30 set-up. 454 engine, etc. Runs like a champ and I love it. If I really got a wild hair and wanted to replace the transmission with an overdrive tra...
Forum Discussion
That unit should have a turbo 400 transmission; the overdrive replacement is the 4l80e, but it requies a computer for it to work. Best option would be a gear vendors bolt on OD unit for your transmission but they run about $2500. With the 454, od probably wont save enough to justify the cost.
