How many iso's are safe to add to the rear ? I've read on here that two uppers is best ! Is that two plus the original or two total ? Can you add extra lower ?

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2005 jeep liberty CRD GDE Full Torque Eco tune,Blue Samcos,Transgo shiftkit,Provent,V6 Airbox, Facet 40109 fuel pump ,Straight piped . OME lift 235/75/16 Hankook DynaPro ATM tires,weeks101 elbow kit FCV/EGR delete

Pretty sure some have done two extra per side without problems. I decided 1 extra per side was enough to level out with my three nut clevis addition. If I were adding a top plate up front, two would be perfect, but with the frankenlift, I think I'm high enough. I tried 2 extra per side, and the rear end looked I wanted to drag race. I have two extras sitting in the garage if anyone wants them. Pm me, and I'm sure we can work something out.

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"BERT" 2003 3.7L Sport Gasser with the 5-speed stick
Frankenlifted (plus 1 extra rear iso. and a 3 nut clevis), Al's gen 4.5 UCA's, Full Mopar Skids, Kurt Hitch, Soft 8's, BFG AT's 245 75 16, Rock Lizard Front Bumper, fence top-rail crossbars (unbent!), some stuff inside...