First off, pictures.....of everything. Shackle angle, steering linkages, spring mounting. Second, have you ever had a wheel alignment done? Third, that high and short of a jeep on tiny/narrow 31's is going to make handling difficult to begin with. Does it have stock narrow track axles as well?
'84 CJ-17: 17" stretch, locked Toy axles, 5.5" lift, FI, AX15, D300 w/twin sticks, boatsides & junk.