How "stable" is your car on the open road???

[NASSTY]

Originally Posted by Rebel1

Nope, not in favor of any "pulling" to achieve your geometry. There are enough stresses both fore and aft for the rubber bush to deal with as it is. Using it to pull the toe will only cause wear of the bush and then you are back to square one.

The geometry can be perfectly set using the shims and that leaves the trailing arm to deal with it's own problems. In the case of the RMC it runs straight forward so will pull on squat and rebound anyways.

The positive camber was just a starting point and depends on your top mounting point. Static positive camber in some cases can quickly turn negative with very minor body roll.

The issue of trailing arms of the jag rear end in a cobra is not new ground. The original jag diff is in a sub frame that is completely rubber mounted. If there were no trailing arms then there would be very little to stop the diff sub assembly from rotating forwards and backwards on its rubber mounts. Any binding caused by the training arms not having the same geometry as the lower arms is offset by the sub assembly's rubber mounts as well as the bushes on the trailing arms.

Conversely in a cobra where the diff is solidly mounted to the chassis, there is no additional play as there are no rubber mounts. The roller bearings in the lower control arms have far less play than the rubber bushes in the trailing arms which effectively make the trailing arms redundant, in my opinion.

Perhaps you may also place too much lateral preload on the roller bearing in the lower control arms if pulled in.