need opinions on rear end noise
04-08-2014, 01:07 PM
#1
Racer
Thread Starter
need opinions on rear end noise
My '84-z51, (D36-3.07 gear), is making a high pitched warbly whining noise when i'm applying the throttle but quiets down when I take my foot off the gas. I'm not sure if it's the diff, bearings, u-joints, or what? The pitch and the warble frequency both increase with speed. By "warbly" I mean a constant amplitude or intensity modulation. I'm thinking pinion bearing wear but a friend thought it sounded more like u-joints. Any acoustic experts on drive train noises out there?
