i juz inspected my shocks, & found tat 1 of the rear shocks got problem, the e-ring came off (duno why?). i've re-do the shocks & hope tat it could reduce the problem. thx for the advice.
but another problem came up (lol)
i broke my 1.5mm allen wrench & the bit stay in the set screw. the set screw is used on the x-bracket to secure the roll-over bar, got any ideas to take out tat screw? i was tinking of drilling it but it's rather small, not sure if it works...