Time for new gears. Vehicle is a 1990 Comanche with a Dana 30 front and a Dana44 rear. Have done a few Dana 44's before so don't forsee any problems. My question is about the Dana 30. Is the set-up procedure the same for pinion preload?? It seems like some use crush sleeves and some use shims. All my searching indicates that some have shims and some have crush collars. Anybody know what would be in a 1990 Dana 30?