Great question, I'm doing 1 in my 40 Dodge now, I am planning the T5 trans swap & an 8 3/4 with probably 3.55 gears. I had a buddy of mine that had that exact combo in his 36 Plymouth. he drove that car all over. He moved from Minnesota to North Carolina, he & his wife drove the car. It would run highway speeds, accelerated well enuff to be fun. I hate he moved back to Minnesota.