NewKindOfClown

Yeah...?

94XjSport94

You only said LCA's. they drop the uppers too.

bheath

Yup. You lose ground clearance with long arms to jsuk. Just more with drop brackets.

NewKindOfClown

Didn't know that.

NewKindOfClown

How so? If you mean the attachment point, it would depend what crossmember/mounting system you use.

No4x4Yet

Long arms have to be below the floor so you loose a lil clearance. This is just my own speculation but dont they act like ramps to a small extent if you did hit them on something?

To clarify on the Control arms drop brackets, they drop both arms down to provide better geometry. Control arms are suppose to be close to parrellel with the ground, this allows the forces exerted on the while to go up into the spring. when you angle the arm down part of the force transmits up the arms into the body. This creates a poor ride and suspension traits. Im hoping they also correct my pinion angle so I dont have to spend and more money right now. It does decrease ground clearance a bit but unlike long arms the mount location is right behind the front wheel so the negative affect is greatly reduced. Chances are you would move past the lowered mounts when you came off an obstacle and it wouldnt be an issue.

You can see the original LCA mount and the hole for the UCA mount in the frame rail that the top of the pic.


Here is a comparison of the control arm angles. When you calculate forces transmitted you use the angle of the support member, in this case the control arms to get the proportional load. The flatter the arm the more the spring does the work. This will improve ride quality and suspension articulation.


This is a pretty good side view of the brackets and where they come down to.

bheath

Think about it. From stock mounting spot to the axle, then from LA mounting point to axle. You still lose GC. Doesn't matter what system you use, unless the long arms are parallel with the frame and the frame bottom is closer to the ground, your going to lose ground clearance.

I agree LA's are better but i just don't agree when people say you don't lose GC with 'em.

NewKindOfClown

The LA tube can drag, and it doesn't worry me. The CAD bracket can get hung up. Consider if you choose a bad line and have to back up. That CAD bracket can hit something where the tube would just slide over it and raise the axle.

bheath

Exactly. I've only slid on my drop brackets a few times when coming directly off a ledge. But long arms would've done the same.

bheath

I understand what you are saying. And backing up a ledge is a downfall with the drop brackets but i've never been hung up when moving forward. Dropped on em alot to. Lol

NewKindOfClown

I'm only pointing out a downfall they have. I wouldn't tell anyone NOT to get them. As far as I'm concerned, what I pointed out is their only inherent weakness compared to long arms. Well, that and the way some of them mount up.

bheath

On topic:

Did this today.

Works like a friggin charm. Lol

bheath

I can totally agree. No worries. Mine are welded so i don't even worry about em.

99superjeep01

You could also get the TNT kit which has the arms mount inside the frame rails for clearance. Not cheap though.

NewKindOfClown

Oops, I thought we were in a tech thread

I bought some D Windows on CL for the MJ. Old and the BS isn't much better than stock, but I only paid $150 for four of them, and they came with two 60% tread BFG A/Ts that I can use as spares.