I posted this same thread in the 1st Gen Tundra section as well. Hoping for a little more insight here.
Several months ago I responded to another thread inquiring about how a LSD should work. I stated that I didn't think mine was working properly as I could see one tire only spinning on icy, level, ground. Recently, my truck started to develop a noise that I thought might be a bad front wheel bearing. I removed both front tires and calipers and attempted to find a bad or noisy bearing. Nothing!, the front end seemed to check out fine.
Tonight I jacked up the rear axle and put jack stands on either side and the big floor jack in the middle. Ran it up to about 40mph and could hear the noise I had been chasing. The wife said it seemed louder in the left rear, so I removed that wheel and brake drum. Looked for any evidence of brake drum rubbing and rotated a pulled on the axle. The axle had a little end play, but didn't seem all that bad, rotation seemed smooth. I bead-blasted the inside perimeter of the brake drum and cleaned up the brakes and backing plate. Put it all back together and the noise seemed just like before. This time I put the wife in the truck and got her to hold a steady 45mph while I crawled underneath the center area from the rear bumper. I put my hand on the rear of the axle housing near the differential and could feel that is where the noise and vibration was coming from.
So here is where I am. A LSD that doesn't seem to be performing properly and is producing a very faint "wop, wop, wop" that seems to be getting louder and more steady. A slight vibration can be felt in the floorboards as well. I suspect one or more bearings and faulty LSD clutches. Do I go to the dealer and say "fix it", do I find a TRD component that is likely better, is it the bearings and clutches or a whole new differential?
I posted this same thread in the 1st Gen Tundra section as well. Hoping for a little more insight here.
Several months ago I responded to another thread inquiring about how a LSD should work. I stated that I didn't think mine was working properly as I could see one tire only spinning on icy, level, ground. Recently, my truck started to develop a noise that I thought might be a bad front wheel bearing. I removed both front tires and calipers and attempted to find a bad or noisy bearing. Nothing!, the front end seemed to check out fine.
Tonight I jacked up the rear axle and put jack stands on either side and the big floor jack in the middle. Ran it up to about 40mph and could hear the noise I had been chasing. The wife said it seemed louder in the left rear, so I removed that wheel and brake drum. Looked for any evidence of brake drum rubbing and rotated a pulled on the axle. The axle had a little end play, but didn't seem all that bad, rotation seemed smooth. I bead-blasted the inside perimeter of the brake drum and cleaned up the brakes and backing plate. Put it all back together and the noise seemed just like before. This time I put the wife in the truck and got her to hold a steady 45mph while I crawled underneath the center area from the rear bumper. I put my hand on the rear of the axle housing near the differential and could feel that is where the noise and vibration was coming from.
So here is where I am. A LSD that doesn't seem to be performing properly and is producing a very faint "wop, wop, wop" that seems to be getting louder and more steady. A slight vibration can be felt in the floorboards as well. I suspect one or more bearings and faulty LSD clutches. Do I go to the dealer and say "fix it", do I find a TRD component that is likely better, is it the bearings and clutches or a whole new differential?
What say you forum members?
if you havent done it already, maybe you could change your diff fluid over to synthetic, and add an lsd additive,maybe it will make it quiet. just a thought!
LSD bad, options?
Linear Mode
