E30 rear end noise?

[e30loverSC]

Last summer I took the sub frame with differential and all out of my e30 and replaced bushings and sub frame bushings. Ever since I put it back there was what started off to be a slight whine/ roar at higher speeds and has progressively gotten louder. It has gotten the point where it is annoying even with radio blasting. When I jacked the rear end up and checked for play in my wheel (Wheel bearings) there was none but noticed play and clanking sound when i roll the wheel forward or backwards Quickly. It sounds like its coming from the differential. any help is apprecited!

[jlevie]

I'd be more suspicious of the half shafts. Though the whine is more likely to be the wheel bearings.

[e30loverSC]

Its roaring whine. Around 30-50 its more of a roar and the faster is developes in to a whine. I think its coming from the right wheel.

[jlevie]

That does sound a bad wheel bearing.

[5KWattson]

what type of bushings did you do? i did aluminum and mine makes noise in hte car now

[e30loverSC]

poly-urethane. I jacked the rear up and had someone speed up it sounds louder on the right side so I'm thinking right wheel bearing?

[jink0619]

replacing wheel bearings=FUN!














not really...

[brutus87]

When you replace the wheel bearings, do you need grease at all? They look sealed to me?

[rtwaits]

They are sealed. They are an extraordinarily tight fit into the trailing arm/hub. dont use grease between the new bearing and the hub. I froze mine over night.

I am excited in that I get to do my second one in a year soon, as I of course own more than one E30. I followed a You-tube video on an E46, but used similar techniques. I used a 3 inch section of PVC pipe and a long threaded rod with brearing drivers from Harbor Freight that are 72mm ? which push the bearing through

I am also checking half shafts and diff while under there; my sound is almost as if it were a very loud fuel pump, except for the fact that it varies with speed and is still there with engine off