i got my 4 inch superlift put on my 85 k5 and the driveshaft is to short. i had to lower the transfer case on inch for now. mechanic said the one year 85 the drive shaft was 2 inchs shorter.. there is 2 inchs of clean on the yoke. has anyone ran into this problem? should i get a new driveshaft or a junkjard one? or should i get it lengthened?