Hey everybody, new to the forums. I bought a jk Moab industries that has a 6 inch lift on it. I think it's a short arm, don't hold me to that. Adjustable uppers and lowers front and rear. I want to drop in two inches and put Evo plush ride 4" coils springs on in. What all do I need to do to accomplish this other than the coils? I just bought fox shox for a 4-6 lift. Any input would be appreciated.

 

Might need to adjust your control arms to set caster and driveline angle. Might need to adjust or buy shorter swaybar links.

 

Caster and pinion angles will change. Axles will both be off-center, assuming they are centered now. 4" lift with 4-6" shocks, you will probably have a lot of downtravel, make sure that the coils do not unseat when fully drooped. Also verify that you have proper bumpstop to keep the long shocks from over-compressing when hitting bumps. Swaybars will be angled up, with the extra downtravel from the longer shocks, this is a good thing, maybe just leave them alone. Does it have a draglink flip? Shouldn't be an issue, but check that the draglink/trackbar still clear the frame when stuffed.

 

Yes it does have a drag link flip. I can't remember but if the track bar is not adjustable, is thy at going to effect anything.

 

If the axles are currently centered, and you drop two inches, both axles will offset to side. (if I am thinking about it the right way, the front passenger and rear driver tires will stick out, the other two will be tucked in further). Assuming the trackbars are not adjustable, you have no way to center them. No idea how far off they will be, maybe 1/4"-1/2" ? Just a guess. But drive it after you drop the 2" and see if you notice a difference and want to center them.

 

I have a 6" lift ready to install on my Jeep as well as soon as my rear bumper gets here. Going to run 37" tires. Thinking about also going with 4" coils instead of 6". What is swaying you to knock your rig down to 4"? Is it just a lower center of gravity?

 

What makes you want to run a 6" lift?

 

I'm running a 2" lift and i'm still a Sexual Tyrannosaurus.

 

Ohh its just to big of a lift for what I do, plus it rides pretty rough. A group of buddies and I went into the mountains in Colorado and all of them just had 4" lifts and they seemed to get around just fine. But the kicker is the 7 hour drive there. Then I rode in one that had the Evo springs and said that's what I need. I am just not that hardcore of a 4x4 keeper yet that I need a 6 inch lift and all that flex. Lol origanlly bought the jeep for my gf so it was mainly geared up for looks and to be a mall crawler. But since we got her a new car it has became my daily driver/toy. I have been slowly taking the rough country stuff off and replacing it with quality parts. Next upgrade is changing the upper and lower control arms. I was thinking metal cloak unless somebody can tell me different.

 

A ton of reasons, with the biggest being there is absolutely no reason to run that much lift. You can easily run 37s with 2.5" of lift. 40s on 4" of lift.

Other reasons

1. Driveline angles. As you raise the JK up, the axles rotate. On the front, it decreases your caster, which creates a poor ride and handling. Yes, you can use adjustable arms to add caster, but as you increase caster, you decrease pinion angle the same amount. You will never get a proper setup with a stock axle unless you cut and rotate the Cs or buy a new aftermarket axle. The rear angle is an issue as well, but that can be adjusted. Then you will want to cut and rotate some of the axle components.

2. You will evaporate the stock driveshafts. Yep, you can get new 1310s, but you still have the axle rotation issue and will need to cut and weld.

3. High center of gravity and poor offroad handling. I'd be scared to wheel a JK on a 6" lift...

4. If you don't solve the driveline angles, the vibrations could cause serious damage to everything from the pinion to cracking the transfer case.

5. It looks silly (ok, personal opinion, but one shared by 98% of JK owners).

6. Cost. To do a 6" lift right, you are talking $5k. Needs to be a full long-arm system like the one Teraflex offers. Lots of cutting and welding.

7. Added cost as you need a drag link flip, etc.

I'll stop here and let others add to the list. It's a long one.