Question: When you lift a Jeep, does it noticeably effect the bumpsteer?

And if so, what can be done about it?

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06 CRD LIMITED- Factory Belly Armor, Hooks.
EHM, MagnaFlow SS Cat Back, FS-2500, HDS 001 TStat, Some Gauges, PML Trans Pan, PML Diff Cover, Marinco Mod, FIA Blanket, Cooper Discoverer ATR 225/75, CTS 245/70, Front-JBA 2.25" C/Os, Rear-OME HD, JBA UCA, SS Brake Lines.

Ive never noticed it on my kj, but others might chime in.

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2002 KJ Limited 3.7, 5.25" lift via coilovers, custom HD rear springs, 32.2" tires on moabs (soon 33s) 4.56/JBA diff, OX lockers front/rear, NP241OR, Parker Fab front/rear bumpers, rock rails and roof rack, Viair OBA.

2006 KJ sport 3.7, 4" Ironman lift, 32" tires, Parker Fab front/rear bumpers and rock rails.

Can't get bumpsteer in a IFS vehicle,no track bar and no drag link.

Our race cars have IFS and we had a longacre bump steer gauge so we can check bump steer.

Bump steer gauges
http://www.longacreracing.com/catalog/catlist.asp?catid=5

Instructions on use
http://www.longacreracing.com/instructions/inst.asp?INSTID=15

What bump steer is
http://www.longacreracing.com/articles/art.asp?artid=13


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2006 Sport, GDE FT Eco Tune, Custom Trans Tune
2015 Ram 1500 Big Horn EcoDiesel, GDE Hot Tune

That is a different type of bumpsteer then what is the normal consideration of bumpsteer most know when they improperly setup a lift on a SFA vehicle.

See I knew someone else thought the same way I did

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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

Excellent info for those that need to learn what it is.
Heck my 4wd 4 wheel independent suspension 1/8 scale nitro race buggy has bump steer to over come and have made a special gauge to correct it.

Choochooooman74, nice to post those links for everyone to see.
I also am coming from a race car back ground where bumpsteer is very important when the ride height is changed, and thus the front end geometry changes. I woulde like to make sure my wheels are pointed in the correct direction during turn-in to a right hander at 90 MPH.
I realize this is a Jeep and not a race car.
I don't want to make a Federal case out of this. I am just trying to learn and understand lifts and suspension. Purely Lift Tech. If nothing can be done about it, so be it and now I know.

tjkj, just to clarify, are you saying that with a lift, bumpsteer is not induced OR that it can not be tuned for (without added suspension components like a tierod end with spacers)?

Tom and tjkj-does that mean don't worry about it on the Jeep?

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06 CRD LIMITED- Factory Belly Armor, Hooks.
EHM, MagnaFlow SS Cat Back, FS-2500, HDS 001 TStat, Some Gauges, PML Trans Pan, PML Diff Cover, Marinco Mod, FIA Blanket, Cooper Discoverer ATR 225/75, CTS 245/70, Front-JBA 2.25" C/Os, Rear-OME HD, JBA UCA, SS Brake Lines.

Oh I had to worry about it since I went SFA.I must have the drag link and trackbar be as equal in length and parallel otherwise you get "bumpsteer".


For what you are experiancing is not bumpsteer,it's the SAI angle and scrub angle being out of wack and sadly there is nothing you can do to change it but you can compensate with caster and altering the toe setting a little on a KJ.