Have a pulsating roar at 25mph and above.
have balanced drive shaft. have used another drive shaft from my 85
camino with no affect. have checked rear brakes. have checked posi rear
end. in perfect shape, no looseness. transmission shifts sharp and clean.
checked all transmission mounts and engine mounts. rear end fluid level
was low. noise was instantly there. quiet and smooth earlier. checked all
rear suspension bushings. not new but still in very good shape. this was a
restore i purchased recently. has a 350 crate motor hooked to a turbo 350.
