Engine/Transmission (1994 - 1998) Replaced broken input shaft. Still no go.

[BWAdams]

So, I had my truck towed in and they removed the transmission and found the broken input shaft and replaced it and put it back together. The truck has reverse but when you put into drive nothing happens? Any ideas. Did they mess up putting stuff back together or did I break something more. The shaft was the easy break no metal anywhere in the trans.

 

[DRAG DIESEL]

if you forget to put the oil seal on the new input shaft, the truck will only go into reverse.