I put one in a 55-2 about 2 years ago. It had a 350 that I freshened up with a minor engine kit, aluminum intake & Q-jet. Ran great. After I sold it I bought a 58 step side. I put a new Goodwrench 350 in it & the T-5. I haven,t driven it much yet as i,m still working on the body but it runs real good. I have a 70 step side with 350 & 700r-4 auto o,drive. It has 3.08 gears & 29 in. dia. tires. It pulls real good even on long hills with A/C.