Oops almost forgot about the B&M Torque Arm Mount kit for a TH350, $79.99 Jegs part# 130-30299, unless u buy a $375 spohn torque arm that comes with the crossmember And if you can find a junk yard driveshaft off a 3rd gen with a 2004R transmission then you can use that for the TH350 also.

 

I got mine rebuilt by www.rosslertrans.com and they came recommended by Lingenfelter. Their tranny lasted 3.5 years behind my 383 with me beating on it before needing a new sun shell gear or whatever it is.

They took my stock 700R4 and rebuilt it to shift at a higher point and with a shift kit all in it.

 

Changing shift points is just a matter of changing the springs n weights in the governor, should try and get shift points around 200rpm past your peak horsepower for a smooth accellaration - im sure you've got yours setup correctly, but just for those who don't know - there's people running around with 4500rpm peak power saying "yeah my car revs out to 5800rpm!" just cuz their shift points are way too high - so they have 1300rpm of "dead revving", then when it finally shifts, the car starts to pull again.

 

Use the 1988-early1993 cores only. They come with the bigger style sprags, forward accumulator, and 30-spline input shaft.