Jim_H

That was my first question. On my 90 and 91 my psd would have taken a direct hit.

Chris Lockhart

Jim, no PSD on my '89.

Garth, we tried the hold one side and turn the other method last night, and couldn't get it to budge. We were just pulling against each other. By comparison, his '80 Euro with limited slip would spin both wheels in the same direction, but with minimal force holding the one side, the limited slip would lock up. Mine just turns opposing each other, and will not seem to seperate, so to speak.

Jim bailey - 928 International

Nope last year for a conventional limited slip . And no air bags part of why I think the 89 GT might just be the very best 928 especially with the original forged CS wheels

Chris Lockhart

JB, I definitely have it all put together correctly. The conical washers are in their respective places on the hub carrier. Unfortunately I've had it all disassembled and re-assembled several times now. I have swapped out with new/used parts, the upper arm, lower control arm, and the 12" bolt that goes through the lower control arm, shock and hub carrier. I have inspected everything from one side to the other, taken comparison looks and measurements between the right(good side) and left (bad side) and can find NOTHING out of order. We also let the clutch out while holding the brakes, to put a torque load on everything, and there was no undue movement or clunking of any kind.
What do you think it could be without actually seeing the car???? TIA,

Jim bailey - 928 International

OK you said under throttle it makes the car turn right ? that would indicate that the right rear wheel is moving forward but then under deceleration it is moving back causing the front of the car to "turn left". Maybe look carefully at the right side suspension to be sure it is all tight , cone washers intact ?? After all you know the left side is all as it should be with all the attention focused on that side.

Chris Lockhart

I'll put her back up on jack stands tomorrow, and look the right side over again, Jim. Thanks for the input.

Daniel Dudley

It sure sounds like a bushing. Try chocking each wheel individually and rock the car in neutral. I'm sure you checked the crossmember real good, including the top mounting bolts. Pop the pads and check the hub for play?

Mike LaBranche

Chris, sounds like the diff is hosed. Somethings bent or broken, not meshing truely, lsd engaged when it shouldn't be or vice versa. Not getting to spec on camber on the left ain't helping. Can you laser align these beasts like GMD does for motorcycles? Be worth making sure everything is square before you R/R a diff. Hang in there man. This too will pass. And then we can drink... Beer! and talk about it.... lol

SharkSkin

The impact may have bent the crossmember and/or unibody. Also, I imagine that if the wheel were smacked hard enough from the side some force could have been transmitted laterally up the halfshaft and into the stub shafts and then.... well, check it out.

heinrich

Hmm if they spin in opposite directions, how can that be LSD?

Chris Lockhart

Not sure Heinrich, but when I do a burnout, it leaves 2 big black strips. It does have option code 220.
??????????????????

Chris Lockhart

OK folks, I finally got her fixed up and handling correctly, thank goodness!!!!!!!!!!!! Whew, what a mother it was getting it all figured out. Turns out that the problem with the car darting right and left was very simple. The spare wheel had a 265/35/18 on it, and the right side had a 285/30/18 on it. Definitely the makings for some squirrely handling. My problem was that I had a total case of tunnel vision. Never once did I even think about the spare wheel/tire as being the culprit. I spent a week chasing a ghost. I had the tire shop take the new tire off of the bent Riva, and install it on my spare Cup 2. Put that on the car, and all is right in the world again. Man am I relieved. I still have an alignment issue to deal with, as the left rear camber is 1.5 degrees negative, out of maximum spec. That is relatively minor when compared to the evil handling the car was exhibiting. I drove the beast up to Asheville and back today to attend a funeral. Put about 200 miles on her total today, and she feels great!!!!!!!!!!!!!!!!

Thanks again for all the well wishes, and especially all the help and advice. I'm sure DR, and Glenn Faken are glad, as I've been pestering them both to death during this battle. BIG THANKS DR!!!!!!!!!!!!!!!!!

shaaark89

hi chris,
glad it's pretty well fixed up. as far as the camber goes, just put some d.o.t. race tires on it and change the other rear to match and it should handle great
seriously though, something must still be out of position or bent.

Scott M.

Chris;

Tom may be on to something...

My GTS was set up with 4 deg front ('84 lower control arms)/2.7 deg rear camber. Just get the toe perfect and it'll handle awesome.

Scott
p.s. I just found your PM. email me if you...you know what...

wrecktech

I still have an alignment issue to deal with, as the left rear camber is 1.5 degrees negative, out of maximum spec.


Your spindle is probably bent slightly. If the control arms were bent the spindle is usually bent also.