i have a bds 5"lift in my jeep now. you will have to do the sye and get a slip yoke driveshaft(you can use a xj front shaft). but even after that you my have to get a transfer case drop because of the steep driveline angle.i did all the work my shelf so.to be honest if i knew it was going to be such a pain with the driveline angle i would have went with a 4" lift.lower center of gravity.
90 wrangler,4.2l,1" MML,CRT HEI Dist.,34/34(interco) weber, hurst shftr,5spd,5" BDS lft,f-d30/r-8.8,5/8 lft booms,1" bl,tflex belly up,JB convs. SYE,gdyr mtr35s,hurc'ed,smit src frt bump,gen-r rear bump w/tire carrier,f&r tube fenders,psc knokrs,r gen-rgt ful conr gurds,duel bat.,BIC,m8000