Does anyone know if the WJ ('99-'04) Grand Cherokee boomerang and the KJ boomerang share the same dimensions? After doing a little research I know that the bracket that attaches the boomerang to the diff is different.... I didn't know that the WJ used a boomerang until yesterday morning while watching Extreme 4x4.... A Rusty's Offroad 4.5" long travel lift kit was being installed on a WJ... The rear upper link in this kit is super beefy, and it's available separate from the rest of the kit!! If this boomerang/ wishbone/ tri-link/ what-ever you prefer to call it, shares the same dimensions as the one on the KJ's... A bracket to attach it to the rear diff of a KJ shouldn't be too hard... Some steel, a little cuttin' of that steel, a couple of bends, a few welds, four holes... Do I see the possibility of no more rear ball joint problems, and pinion angle adjustment, or am I just having a pipe dream??

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Black '05 Renegade. Front suspension: Frankenlift, Moog HD LBJ's, Audiboy cut CV's
Rear suspension: OME 948's, 2 extra upper ISO's, Rancho RS 5000 shocks.
31X10.50X15 Duratrac's/ProComp 152's
ARB bumper, Mopar skids, JCR stage III's, Reese hitch with tractor lights, Champion shackle insert, "homebrew" on board air, 1000 watt inverter

Don't know if they are the same , have a few KJs upper tri links laying here may have to measure
of course JBA already has a setup for the KJ

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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

Hey Tom, thanks for the reply. How'd I know you'd have a few links around to measure? One of my co-worker friends has a WJ. If I remember; I'm gonna ask if he would care if I measure the upper link on his WJ before I clock in at work today...
I'm aware of the JBA four link, as well as the extension for the stock link. My rear ball joint has developed a clunk, and I could probably just replace it, and get the link extension and solve the problem. Just checkin' out some other possible options...thinkin' outside the "normal" box...

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Black '05 Renegade. Front suspension: Frankenlift, Moog HD LBJ's, Audiboy cut CV's
Rear suspension: OME 948's, 2 extra upper ISO's, Rancho RS 5000 shocks.
31X10.50X15 Duratrac's/ProComp 152's
ARB bumper, Mopar skids, JCR stage III's, Reese hitch with tractor lights, Champion shackle insert, "homebrew" on board air, 1000 watt inverter