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Old 06-03-2014, 08:18 PM   #1
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Control Arms

Received my front upper control arms today and assembled the joints. Reading the instructions it states to remove track bar from frame, remove shocks from axle, remove sway bar links and on some models remove the coils. Is that necessary? The only pain in the butt will be cutting the passenger side bolt. I guess to clear the exhaust when removing? I planned on supporting the pinion or yoke side with a jack and installing them at a preset length. My axle needs to be tilted upwards from the yoke to correct my pinion angle. Any suggestions?

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Old 06-03-2014, 08:38 PM   #2
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Get a pinion/caster reading now. Stock uppers measure 18 3/4
For a little more pinion install at 19"
For a little more caster install at 181/2
Position jack to raise/lower pinion to your desired pinion/caster spec,
Remove one arm at a time and replace it. Leave bolts loose until you have both in. Tighten and remeasure.
Make sure you are on flat ground.

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Old 06-03-2014, 08:50 PM   #3
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Quote:
Originally Posted by kjeeper10 View Post
Get a pinion/caster reading now. Stock uppers measure 18 3/4 For a little more pinion install at 19" For a little more caster install at 181/2 Position jack to raise/lower pinion to your desired pinion/caster spec, Remove one arm at a time and replace it. Leave bolts loose until you have both in. Tighten and remeasure. Make sure you are on flat ground.
I plan on installing tomorrow. Not looking forward to cutting the bolt but I will let you know how the pinion angle turns out. Thanks
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Old 06-03-2014, 08:50 PM   #4
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Disconnecting everything will facilitate installing and aligning the CAs and avoid preloads. Most aftermarket CAs are installed on lifted Jeeps which means longer coils which are harder to fully unload. I did not remove the coils when I installed mine.

Similar to installing coils you can try the minimalistic disassembly approach for convenience but this should provide best results.

If you are uncomfortable cutting the CA bolt, try removing the bolt for a while, then you will be grateful for the cutting option.

What CAs are you using?
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Old 06-03-2014, 08:57 PM   #5
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Quote:
Originally Posted by Yeti83 View Post
I plan on installing tomorrow. Not looking forward to cutting the bolt but I will let you know how the pinion angle turns out. Thanks
I recommend using a Sawsall. We did not have one and used a hack saw. Big mistake ... It took forever.
You'll be ok
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Old 06-03-2014, 09:38 PM   #6
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Using Rough Country CAs. After purchasing Synergy Ball Joints and Flipped Drag Link it's all I had left in my budget.
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Old 06-04-2014, 05:47 AM   #7
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You'll be ok .. RC has made some improvements lately. Just maintain the joints with a quality moly grease keep a eye on them.
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Old 06-04-2014, 10:27 PM   #8
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You'll be ok .. RC has made some improvements lately. Just maintain the joints with a quality moly grease keep a eye on them.
Install went smooth. Still worried about my DS angle where it goes into the transfer case. Looks good on the axle side. The angle is so bad going into the transfer case that it almost looks like the shaft will bottom out on the housing or yoke of the case. My lift came with spacers to lower the skid plate. I assume it was for clearance for the DS. It almost looks like a need a transfer case lowering bracket or a drop kit. Do they make one. If I could figure out how to post pics then I would send you one. Some type of grease has slung out of the seal where the DS goes into the case. No visible tears or holes in the black boot or seal.

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