04-09-2013, 06:47 PM
Listen, shims will NOT work on a 306 rear beam due to the nature of the bearing and the stub axle. Shims ONLY work when a hub bolts onto the suspension as a complete unit, the shim sits between the hub and the suspension. On a rear beam, the bearing/hub are pressed onto a stub axle that fits into the trailing arm from behind.
Go ahead and fit shims if you want. I'll laugh at your epically wobbly wheels then.