Well.... I put on 31's and a new carb. did some burnouts and broke something. Imagine that! I'm not well versed in GM 4X4 from the '70. Not sure but the case looks divorced to me. The '74 crossmember was used and has a casting that seems to contain a shaft. I always assumed it was an open shaft. problem is under power the drivetrain seems fine. when it "relaxes" or coast it has a horrible bad sound. The throw out bearing made some noise once I put it back on the road after it sat 10. I don't think it's the problem. I'm assuming it's a chain drive case. It's behind a 4 speed granny gear trans.
As your conversation has to do with a truck converted to a later drivetrian, your post has been moved to the HiPo Shop for further conversation and discussion to help you with your problem.
Am sure fellow Bolters with some experience with running such a later 4X4 drive train will chime in soon with helpful tips and info.
Dan
~ Dan 1951 Chevy 3 window 3100 Follow this story in the DITY Gallery "My Grandpa Carl's Truck and How it Became Mine" 1966 Chevelle (Wife's Hot Rod) | 2013 Chevy Silverado (Current daily driver) US Army MSG Retired (1977-1998) | Com Fac Maint Lead Tech Retired (1998-2021)
