the cut shoes maybe only have a 0.5MM along the bottom is cut. It is the whole length. The clutch engages fully cause its next to no weight taken off the shoes. Its just to help it idle w/ out lurching. I might take the slipper assembly apart and scuff it a bit and put a new pad i have around in. My diff is at the point when you spin one wheel the other goes forwards not backwards. Is that too loose or too tight. Its weird cause i have never had a tranny do this to me before. I usually build them and they work fine. I have rebuilt atleast 20 of them without a hitch. I put both bearings in. Use CR silicone diff grease. It has new very high quality diff balls and the diff thrust bolt has carbide balls (6) on there with the T-nuts and spring. It has the two bearings in the diff gear also. Outdrives are brand new and on the right side and the trust rings are brand new and polished to a mirror (worked great in all my other trucks)

I also put a harder spring out of a NTC3 diff and grinded it down to fit so it has mucho pressure on slipper assembly![]