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SFA for a non-crawling kj?
http://www.lostjeeps.com/forum/phpBB3/viewtopic.php?f=73&t=48193		 Page 1 of 1
Author:  dgeist [ Tue Dec 01, 2009 10:22 pm ]
Post subject:  SFA for a non-crawling kj?
I may be in strange company here, as I'm a wheeling noob, but would it be reasonable (with the clearances, oil sump, uniframe, etc) to put a HP Dana 30 from an XJ and only a very mild lift (2.5-4") on a KJ CRD? I like the simplicity and weight savings of a SFA, and CV joints, ball joints rack/pinion, etc. will start to become a PITA at some point, not to mention the potential for going to something more extreme later if the hobby and my pocketbook takes me that way.

For now, the jeep is still my daily driver and I don't want to put huge amounts of time, fab dollars, driveline swaps, etc, but would it even be feasible to simply "cherokee-ize" the front end with the axle, some new mounts on the uniframe and corresponding steering, suspension mount, and gearing changes (don't think the XJ came with the same ratio stock as my CRD)?

Just wonderin'
Dan
Author:  tjkj2002 [ Tue Dec 01, 2009 10:24 pm ]
Post subject: 
Unfortunately you need at least 8"-10" of lift to fit everything needed to swap in a SFA on a KJ.Just not that much room to get everything under there without the high lift and still be able to somewhat use it still offroad.
Author:  dgeist [ Tue Dec 01, 2009 10:43 pm ]
Post subject: 
I guess the engine and lower parts of the uniframe sit considerably lower (especially in the CRD) than in an XJ?

Dan
Author:  tjkj2002 [ Tue Dec 01, 2009 10:47 pm ]
Post subject: 
dgeist wrote:
I guess the engine and lower parts of the uniframe sit considerably lower (especially in the CRD) than in an XJ?

Dan
Yep and the XJ was designed with a SFA also.
Author:  dgeist [ Fri Dec 11, 2009 1:41 pm ]
Post subject: 
So, not to try to revive a dead horse, but part of me just wants to understand this better. with the parts shown here (thanks Mike):
Image
and here:
Image

What part(s) would bind in a mild-lift setup? Would the uniframe walls beneath the shock towers need a notch to clear (like the arches on a ladder frame)? Is it the oil pan itself, or perhaps the clearances for the upper-bar-geometry thingies that attach to the top of the axle shaft? Would a setup like a rover radius arm (C-shaped attachment that keeps the axle from rotating) help with that?

Thanks for indulging me.

Dan
Author:  tjkj2002 [ Fri Dec 11, 2009 7:51 pm ]
Post subject: 
You could get away with 6" with a stock radius arm setup,less issues then what the rest of have used which is a "Y" link setup(a modified radius arm setup).

But you have a diesel which has it's own unique challenges like getting a gear box in there and you will still need a trackbar all of which needs clearance.You'd have to severely limit travel to keep it at 6" of lift.
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