Can you upgrade a T5 transmission?
Can you upgrade a T5 transmission? See all 8 photos The Pro Motion-modified T5 is also available in a full helical configuration. This version is available only in a 2.92 First-gear setup. If you're in the market, you can grab the straight-cut version for $2,560, while the helical version will set you back $2,655. When did GM stop using the T5 transmission? From the early 80s through about 1993, GM used a T5 with a Chevy bolt pattern case. After about 1993, GM cars and trucks still used a T5, but the T5 had a FORD pattern case. The photo...