I would check the bushings in the torque tube. I had a GMC half ton long be that
did as you describe. Coast vibration, worse when loaded. With a heavy load it
got scary. Seized right in the middle of the road one day. The U joint tied
itself in a knot and locked up in the bell.
Grant
50 Chevy 3100
52 GMC 150
Pastorjon994@cs.com wrote:
> Say Ole Truckers,
> Recently I was hauling some materials with my old truck. I was on some
> rather rough terrain in the field. On the way to the road, I noticed a lot
> of clanking in what seemed to be the drive train, (terrible racket, it
> sounded as if the entire truck was shelling out). I didn't think that I was
> going to make it. It felt as though something was locking up or binding
> really bad. I reversed & headed to the office to call AAA. I thought I'd
> try to make it home one more time and PTL, it did come out of it.
> I do however notice that when driving, as I let off the accelerator, with
> foot off clutch, I get that noise again. Not quite as pronounced, but I can
> hear it and feel it in the floor board.
> Any ideas? Tranny? Rearend? Clutch? 1950 3100, 216, 3 on the tree, all
> stock.
>
> Jon Callahan
> '50 3100
> Champaign/Urbana, Illinois
> oletrucks is devoted to Chevy and GM trucks built between 1941 and 1959
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