we put it up on a hoist tonight and ran it. It is getting 4th gear perfect. The linkage was a little messed up though. The lockup must not be working. I can't feel or hear it unlocking or locking. I am running 2,500 rpm at 55 in 4th and 3,500 rpm at 55 in 3rd. I heard and counted the shifts. but no lockup rpm drop. It should drop from 2-400 rpm when it locks up. I have 27" tires and 3.73 gears in the truck. At 75 I am running 3,500 rpm.
Will this ruin my tranny if its not locking up?
