i have a 93 ranger with a 8 1/2'' rubicon express lift. its sas'ed. its got a dana 30 up front and a 44 in the rear. now when i flex it has bad frame flex and i was wondering if anyone could help me or point me in the right direction on how to fix this problem.

 

box the frame, add a crossmember or two where you see fit. but lets face it....fords have flexy frames...thats just the nature of the beast.