518 46re smoked

AJ/FormS said
When you put a TF in Manual Low, you lock the rear drum stationary. When you put a TF in Drive, the sprague does a similar job.
The sprag is not meant to be abused by towing, neutral-drops or racing. It provides a bit of a cushion when selecting Drive-low.
When you downshift a TF from second to first, You are engaging the L/R band. Same for the KD 2-1 shift.

I checked the valve body, pulled it out, disassembled n cleaned it, reinstalled it. Bands were slacked out, the adjuster block fell out of the front band. Junk. 2 1/2 turns is what I remembered off the top of my head and set them to. Drove in 1st, all it had, till it quit, about 3000-4000rpm haha