I have a huge problem and can't figure out what to do,i hope somebody can help!?! I have a 1975 ford F100 4x4 with a 1978 bronco dana 44 front end,a dana 60 3/4 ton rear end.I have about 6-inches of lift.I had 36-inch tires on it,then put on 32-inch.I just replaced the hubs,wheel bearings,hub & rotor assemblies,u-joints,and all the drag links & tie rods.I did every thing how it should be done.Every thing on my truck is good,iv'e checked every thing!My problem is when i drive and hit a *** hole on the rear tire my whole front end starts to jump from side to side (left tire to right tire),and my whole truck vibrates real bad!I can't figure it out!?! It never did this before! Has anyone ever heard of someone having this kind of problem?I can't keep driving it and testing it because somthing worse is going to happen,plus i"m wearing ball joints out! Thanks for any HELP!