going from 6 speed to auto??

[CPT]

Putting a TH350 in CORRECTLY can get expensive too. You need a conversion kit to do it right. The kit replaces the output shaft so that you can use a spacer block and the factory 700/4L60E tailhousing. This gives you a place to bolt the mount and torque arm, and the electronic speedo. The car will launch lazier and not have an O/D either. Remember, a 700/4L60E has a 3.06 first gear. A TH350 has a 2.48. A 350 really hurts 60 ft. times. Makes your 3.73s feel like 3.15s.