I am looking for a source for axle shims for my 30 Chev with a 49-51 Chev axle that bolted to the stock spring perches.I finally got it on the road after my carb problems got rectified,however it is apparent that the caster is out on the front end and needs shimming.Thanks for any suggestions.I removed some leafs to lower and soften the ride and am assuming this has lead to my problem.