Friend had this for sale for $400.00 last night. I said, I'll give you $125. He said, where's your truck. Only a couple of years use but his driver had a heavy load and pulled a trailer in OD and now it slips in 4th. It's a good wrench replacement on a 1991 one ton. He said the original ran over 20 years and finally replaced it couple of years ago. Let one of his drivers use it to move and burned it up. Early model but GM updated to the newer internals for that case. I'm hoping some clutches and a TransGo HD reprogram will fix it up.