S10 Rear End

I would seriously have someone check the rear end of broken parts and to move that much.

I will assume that the shocks are original, you can have a broken shock mount. leaf or coil springs broken.

Ask rear diff checked for loose or broken spring U bolts. Perhaps changing your axle on deceleration. Could also be the shock at the origin of the truck to shake and dip direction.

Well, it happened when I tore the leaf spring mount right out of the frame. took me about two weeks and about 25 # s of welding rod to fix it because the frame was so rusty but I actually drove for a few weeks with the strap wrapped around Rachette frame and leaf spring assembly.

Are you the U-bolts tight?