just noticed the other day that my passenger side rear tire is noticeably further back in the wheel well than my drivers side one...havent had a chance to get under the car in a few weeks so i didn't notice sooner, and havent taken a look, but i have poly/poly non-adjustable LCA's, LCA relo brackets welded to my strange 12-bolt, and UMI adjustable torque arm mounted to cross member...drivers side seems to be positioned correctly and in the middle of wheel well, passenger side is further back towards rear bumper...take a look at these pics...
Any ideas of how to fix it or what could be wrong????

Driver's Side Rear:


Passenger's Side Rear:

 

Front-to-back positioning in the wheel well is controlled entirely by the LCA's. Assuming both non-adjustable LCA's were the same length, it would point to a problem with the LCA relo brackets not being installed the same.

The visual appearance is skewed by the fact the body seems to sit quite a bit higher on the driver's side, which may be making it look a lot worse than it actually is. Get the car sitting level in the back, and the difference might be less than it appears. As the body drops (as on the passenger side), and the LCA approaches a "level" position, it pushes the the axle backwards from where it would be with the LCA pointing down at the axle end. As the body rises (like it appears on the driver's side) the LCA angle is going to be steeper, and the axle assembly will move forward.

 

ok that makes alot of sense, however, i havent been able to figure out why it is sitting higher on one side than the other...i replaced my stock springs with Moog replacements (probably not the best or even good by any means), and i just got under the car and it seems like the lowest coil on the spring where it sits on the rear on the pass. side is collapsed a little, causing the pass. side to sit a little lower...does this make sense? and also, what would be the best choice of spring to replace the rears with?? i have longtube pacesetters, ory, and SLP loudmouth 2 exhaust, so i would need something that wont allow it to scrape, also have KYB gas-a-just shocks and not really looking to replace them as they are almost brand new and have had no problems with them...

 

khojo16:
"i havent been able to figure out why it is sitting higher on one side than the other"
Eyeball the ride height with 180-200 pounds in the driver's seat. Also, there can be a small height difference depending on whether the spring end is positioned on the front or the rear of the spring pad.

 

yeah i made sure the spring ends were positioned the same on both sides, and there still seems to be a little difference between the two sides when I'm sitting in the driver's seat (about 170 lbs)...there still seems to be quite a noticeable difference in the position of the rear tires tho, and they are indentical UMI non-adjustable LCA's in the lowest hole position of the welded LCA rlb's that are welded on the rear, and positioned identically (measured and checked position with flat edge surface along back side of RLB's and also with laser alignment thru RLB holes)

 

Ride height can be a pain. Assuming, the 2 rear spring rates are actually the same, I wonder if the static spring heights are the same. I suppose you could swap the rear springs left and right and see if the rear wheel well clearances follow the springs. Again, ride height can be a pain. Good Luck

 

lol yeah ur telling me....thanks for the help
i know my rear tires are not centered left to right, but thats only panhard rod, and im getting a new adjustable one soon to take car of that, and front to back i know is LCA's, but they are both same length, mounted in same position, aligned the same....so it leads me to believe the only thing left is the springs sitting at different heights...
anyone have a suggestion on stiff/good springs for the rear that dont drop the ride height, or at least not dramatically??? (don't really wanna spend the money to replace the shocks for lowering springs)

 

just went out and pulled springs, both measured identical heights, and are seated exactly the same on their respective sides. also, swapped them from side to side, and didn't seem to change much if at all....just ordered adjustable LCA's and an adjustable panhard rod to center the rear left to right, and hopefully adjust the wheels in the wheel wells to the same position...maybe the next purchase will be a set of the SLP packaged bilstein shocks/eibach springs used on the WS6 models....

 

If your front srpings are uneven, it will throw the back of the car off. Example... as right front corner of the car drops, the left rear corner rises up.

 

checked the front, they are the same, i think the problem is that the rear is not positioned completely perpendicular to the trans and the tunnel...the pass side of the rear seems to be positioned further back a little...im hoping that when i get the adj. LCA's, i can pull the pass side forward a little bit lining it up the same as the driver's side, and that will align the spring on the pass side vertically the same as the driver's side, giving me the same positioning all around....

 

just as an update and to end this thread, i just finished installing my new adjustable LCA's and adjustable panhard rod both from UMI, and the rear and tires are now positioned identically front to back and side to side under the car :-)