okay, so im lookng at some diff options as my 20 year old lsd no longer works properly. I dont want to weld it because i daily drive it and i cant bring myself to fork over $900 for a kaaz. Ive done some searching and ive heard some people were shimming thier diffs to have them lock up easier. im just looking for some info on what exactly this entails. and if there are any other options on locking up the rear easier. thanks.