Steppenwood, I'm not sure about the "closed driveline" part.The driveline is closed from the rear of the tranny to the carrier bearing, about 1' from the rear of the tranny, there is an open driveline from that point to the rear end. This could be a newer rear end, but I don't think so. I'm almost positive it's the original. Is it possible that GMC and Chevrolet are different? Or even 1/2 and 3/4 ton? Mine's a 3/4 ton GMC. I'll take some pics tomorrow and provide a link.
10micron, that sounds like the perfect solution. I got the 235 running today and moved the truck (Not very far) but it seems like the rear end may be ok.
When I first bought the truck I was pushing it up to the garage and I could hear a popping sound and the driveshaft was "skipping" But while moving it under its own power it was fine. No popping.
I really felt like the rear end was ruined and figured that may have been the reason it was parked.
Your solution is exactly the kind of thing I was looking for.So if it turns out that my rear end is bad after I drive it on the road, I'll pick op one out of a Toyota at the junk yard.
Thanks much, Mike.
