wolver1ne

I promise when it comes back from "tatal rebuild on LS400..." is complete.

lextek

The condition that people feel in their 91LS's is not the same thing as the 95 LS's. The 95 LS's have throttle off shock. Spark plugs and either engine ecu or cruise control ecu, i just can't remember which, seems like a remember it being something that didn't make since as far as the ecu is concerned.

Anyhow, I do know for certain that it is spark plugs and an ecu that remedies the bucking problem or throttle off shock. I will research it on my spare time at work so I can give a 100% positive answer, also will post prices on the parts.

The early model LS's tend to have excessive play in the rear end differential after some time. Not all early models do this but a good percentage do. Furthermore, ALL LS's from 89-97 can have rear knuckle bushings go bad, in extreme cases, rot totally away. The bushing is located in the rear knuckle at the bottom, the trailing arm bolt is run through the bushing mounted to the knuckle. When these bushings rot away you will feel a jerking motion when letting off the gas and/or braking. Like the back of the car jerks to the side for an instant. Really strange sensation.

The bushings cannot be replaced alone, the entire knuckles must be replaced, the labor is pretty intensive and requires swapping the rear wheel bearings over to the new knuckles, pretty costly repair.

To check the bushings simply crawl under the car and grap the trailing arm(s) and move them side to side, also shine a light at the bushings while doing this, you can form your opinion then. If these bushings are bad and they are replaced, it is a world of difference due to the fact that it was a gradual problem that really wasn't detected until it was worse case scenario.

Regards.
lextek.

bennie

The rear bushings are easy to replace, with some universal bushings, it take 15 min each side to replace them, simpel drill them out and press in new ones.
The bushings are arround $25.

lextek

I have had no success in locating any bushings for the rear knuckle. Could you post a part number. I have made numerous phone calls in the past and came up empty. I would love to be able to just "press" in these bushings in such a short time.

lextek.

bennie

Look for bushings outside 30mm, inside 14 mm, lenght 40 mm.
I live in The Netherlands and buy them here in a shop like summit in US.