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 Post subject: WJ Rear LCA Swap (Completed)
PostPosted: Sun Apr 05, 2015 7:49 pm 
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LOST Junkie

Joined: Sun Jan 26, 2014 7:10 am
Posts: 569
Location: Whitby, Ontario
I got sick of rubbing at full stuff. So I did something about it.

Here are some of the photo's comparing the two control arms and a pic of them installed, also a write up on how to do it.

Image
^ the WJ rear lower control arm is about three quarters of an inch longer (eye to eye) than the KJ. The KJ's bushings are 2.63 Inches wide. The front bushing on the WJ LCA is 2.81 and the rear is 3.11" wide. It is okay tho, most of the extra width comes from excess sleeve.

cutting and grinding was in order.

How to:
If you don't have a digital caliper (HF, Princess Auto), get one. If you still don't wanna get one, follow the steps below.

(disregard if you have your caliper) You need a way of measuring how wide your kj bushing is. Grab an M14 and stick it in the hole of your kj bushing. With the bolt bottomed out in the hole, mark the opposite side or notch it or do something permanent, so you have a physical way of telling you how much to trim off the WJ bushing.

Now that you have your "2.63 inch standard", place your WJ arm in a vice or clamp it down. Personally I found that the rubber parts of the bushing measured 2.63 from side to side. I used a sawsall (hack saw, or grinder as a last resort) to cut the extra metal sleeve off, almost flush with the rubber bushings on either side. Then I used a grinding wheel to flatten it out. The caliper will tell you when you have everything even.

Keep grinding until you reach that 2.63" magic number.... or until you can see the mark on your standard. Careful tho, don't get too carried away with grinding because if you grind too narrow, you will pull the bracket wings on your KJ inward towards the bushing (not that its a big deal or anything?), do a good job :)

And then you get this :)

Image

I totally forgot to take a picture of the gap with the wheels on. It will follow soon, no worries.

So there you have it, longer rear LCA's at a budget price. I run a 32 inch tire and used to "just" rub at full stuff. Now it won't.

_________________
2004 KJ 3.7 Limited:
IRO WJ Upper Arm -- WJ Rear LCA's -- Rear Driveshaft Spacer -- JBA Upper A Arms -- 4 inch Lift -- 265/75/16 4" B/S -- WasherBottle Relocate -- Custom High Mount Intake -- Carpet Delete -- Homebrew Winch Bumper -- Warn VR8000 -- Homemade Plow -- Pinch Weld POUNDED -- POR 15 inner fenders --


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 Post subject: Re: WJ Rear LCA Swap (Completed)
PostPosted: Sun Apr 05, 2015 8:57 pm 
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Moderator / Lifetime Member
Moderator / Lifetime Member

Joined: Thu Jul 07, 2005 5:49 pm
Posts: 27226
Location: NOW Southeastern Ohio/ Tanzania
Mine rubs equally front and back so that wouldn't help me one bit

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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


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 Post subject: Re: WJ Rear LCA Swap (Completed)
PostPosted: Sun Apr 05, 2015 9:24 pm 
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LOST Junkie

Joined: Sun Jan 26, 2014 7:10 am
Posts: 569
Location: Whitby, Ontario
I had to keep repainting my flare.

_________________
2004 KJ 3.7 Limited:
IRO WJ Upper Arm -- WJ Rear LCA's -- Rear Driveshaft Spacer -- JBA Upper A Arms -- 4 inch Lift -- 265/75/16 4" B/S -- WasherBottle Relocate -- Custom High Mount Intake -- Carpet Delete -- Homebrew Winch Bumper -- Warn VR8000 -- Homemade Plow -- Pinch Weld POUNDED -- POR 15 inner fenders --


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 Profile  
 
 Post subject: Re: WJ Rear LCA Swap (Completed)
PostPosted: Sun Apr 05, 2015 10:06 pm 
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Moderator / Lifetime Member
Moderator / Lifetime Member

Joined: Thu Jul 07, 2005 5:49 pm
Posts: 27226
Location: NOW Southeastern Ohio/ Tanzania
Mine, bumpstopped "just about" right Don't see where moving it back would help any at all except cause issues
Image

_________________
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


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 Post subject: Re: WJ Rear LCA Swap (Completed)
PostPosted: Mon Apr 06, 2015 11:06 am 
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LOST Addict

Joined: Thu Jul 16, 2009 11:34 am
Posts: 1236
What about your pinion angle? Now you pinion is pointing down.

Edit: oh i see the other post!!! Sweet!!

_________________
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.


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 Post subject: Re: WJ Rear LCA Swap (Completed)
PostPosted: Mon Apr 06, 2015 5:19 pm 
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LOST Junkie

Joined: Sun Jan 26, 2014 7:10 am
Posts: 569
Location: Whitby, Ontario
And I am holding a billet 6061 ds spacer in my hand. Lol waiting for the lathe. Dxf file also available.

_________________
2004 KJ 3.7 Limited:
IRO WJ Upper Arm -- WJ Rear LCA's -- Rear Driveshaft Spacer -- JBA Upper A Arms -- 4 inch Lift -- 265/75/16 4" B/S -- WasherBottle Relocate -- Custom High Mount Intake -- Carpet Delete -- Homebrew Winch Bumper -- Warn VR8000 -- Homemade Plow -- Pinch Weld POUNDED -- POR 15 inner fenders --


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 Post subject: Re: WJ Rear LCA Swap (Completed)
PostPosted: Mon Apr 06, 2015 7:37 pm 
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LOST Addict

Joined: Thu Jul 16, 2009 11:34 am
Posts: 1236
"ds spacer" whats that?

_________________
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.


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 Post subject: Re: WJ Rear LCA Swap (Completed)
PostPosted: Tue Apr 07, 2015 6:26 am 
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LOST Junkie

Joined: Sun Jan 26, 2014 7:10 am
Posts: 569
Location: Whitby, Ontario
Well I moved the pinion, down 4 inches and back 3/4 of an inch, so for piece of mind I am fabbin and turning a flange spacer. Gonna put it in with a dial indicator.

_________________
2004 KJ 3.7 Limited:
IRO WJ Upper Arm -- WJ Rear LCA's -- Rear Driveshaft Spacer -- JBA Upper A Arms -- 4 inch Lift -- 265/75/16 4" B/S -- WasherBottle Relocate -- Custom High Mount Intake -- Carpet Delete -- Homebrew Winch Bumper -- Warn VR8000 -- Homemade Plow -- Pinch Weld POUNDED -- POR 15 inner fenders --


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 Profile  
 
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