I have an 88 K5 that I just put a 4" Superlift on. I bought the kit with the rear blocks till I can afford the rear springs. My question is, my rear driveshaft is at quite an angle now. I didn't receive any shims or any way to correct the angle of the rear axle. What would be best to do until I get the new springs? Can I lower my transfer case by installing spacers? Or should I buy shims for the rear axle? Any other suggestions? Any input would be appreciated.