I currently have stock UCA's with RRO metal bumpstop extensions bolted above the upper ball joints. I have ordered a set of JBA UCA's and was wondering if the RRO metal bumpstop extensions designed for the RRO control arms would work on JBA control arms. I like the design as it protects the zirk fitting.

IMO toss the RRO and just buy the Teraflex bumpstops , better over all with the JBA arms

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MUDD'S MOTORSPORT'S We do IFS lift installs ,
03 OVERLAND EDITION /Kilby-Skidrow-Mopar-4XGuard skids/ 2.5 inch TOTAL CONTROL JBA coilovers -JBA Arms/MOABS-31 FALKEN WILDPEAK AT3W / 4.10's etc, 04 Kilimanjaro Edition loaded, plus 05 KJ limited

The RRO bumpstops will fit, but you need to get longer bolts.
http://www.lostjeeps.com/forum/phpBB3/viewtopic.php?f=3&t=78276&p=826291&hilit=zerk#p826291

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Phil
2005 131k 3.7 Gasser (Lifted-CRD Springs, 4.10 Gears, F+R DTT, Teraflex 2wd Low, Skidrow/Mopar Skids, Rock Lizard Super Skinks, Goodyear Wrangler Authority 31x10.5-15)
2012 Triumph Tiger (TKC 80 Front Tire Heidnau K60 Rear, Crash Bars, Skid Plate, Bark Busters, Pelican Case Top Box)