Maximizing your Articulation

By Mike Rizzi



Many XJ-listers have been asking me for pictures of what I've done to my truck to get the most articulation from it. I am writing this as a somewhat general article about what can be done to your cherokee, regardless of lift kit, to get the most articulation from your suspension. Just as a reference, my truck has the following modifications:

1994 Jeep Cherokee Country
Off Road Suspension Package
4.0L Inline Six
AW-4 Tranny
NP242 Select Trac Transfercase
Go Rhino! Brush Guard
Smittybuilt Nerf Bars (w/custom reinforcement brackets in frame to strengthen the mounting)
Pioneer DEH P815 Cd/reciever
Rubicon Express 4.5" lift & mepco budget boost for a total of 6.5" of lift.
Steel braided brake hoses
Eye to eye shock conversion in the front
Rancho RS9010 shocks (f/r)
32" BFG Mud Terrain Tires
15 x 10" "rockcrawler" steel wheels with 4" of backspacing
Currie NP-242 T-case conversion kit
Custom driveshafts from Six States Distributors
Wilderness Accesories roof rack with spare tire carrier, flooring and hi lift jack mount.
Custom Crossover Steering
Tomken Trackbar drop down bracket

The first area of concern is the front lower control arm axle bracket. In stock form this extends far back a good deal and it limits the amount of droop that is possible. As you can see from the photographs, this is no longer the case on my truck. Trimming the mount is fairly common, and originally I just notched the back of it. This looked awful and it still limited droop. What I did last summer was to just take a 4" angle grinder and cut the entire back off. This looks much neater and as you can see, it provides more than enough clearance. The top of the lower control arm mount is along the bottom of the shock mount. I used the back of this mount as a guideline for where to cut. To be perfectly honest, I think the lower control arm still hits here slightly, but I couldn't really get a good enough look.

The second area I will discuss is the frame mount on the upper control arm. If you look directly beneath the mount there are little tabs sticking off of the frame. I don't know what the function of these tabs are, but they prevent downward travel of the upper control arm. I wanted to get more clearance there, but since I dont know what the function of this tab is
I didn't want to just cut it off. What I did instead was bend it down out of the way with a pair of vice grip pliers. Now, this doesn't look the best in the world, but I figured 2 things. 1) who is ever going to look there? 2) My undercarriage gets beaten all the time so there are dents and mangled metal all over, now this piece just matches everything else.

Another thing that isn't addressed in "lift kits" is the rear shackle. In my opinion you NEED to get a lifted shackle for the XJ if you want to get the most travel you can from it. The reasons for this are twofold. First off, at 3" long, the factory shackle is too short to accomodate the movement that a long travel leaf spring suspension requires. After a discussion with several people at different spring companies, they told me that based on the specs I gave them for the spring I would want a shackle that is 6" center to center. You can purchase such a shackle from Rocky Road Outfitters or from Terraflex. These shackles provide 1.5" of lift. The second reason you need a longer shackle has to do with the mounting of the shackle. As you can see the shackle fits within a "box" that sits outboard of the "frame rail." This box narrows in front of the mounting location for the shackle. With a stock shackle, the wider part of the shackle comes into contact with the narrower part of the "box" and it limits droop. As you can see, the narrower top portion of the longer shackle allows
unrestricted droop.

As with any lifted truck, you must get longer brake lines for your truck. Something that isn't usually necessary on other trucks though is longer emergency brake lines. Right now the emergency brake lines are the thing that is preventing further droop in the rear. Nobody produces an extended emergency brake line for cherokees. I have considered having custom ones made up, but I have also heard of some other emergency brake lines that will fit cherokees, but are longer. Once I take care of this I will update this article.

Longer shocks are a necessity with any lifted truck. On my truck I am using Rancho RS9010's. Some people criticize this shock choice saying that I am limiting compression. IMHO, my tires tuck more than high enough. If you are using narrower wheels then me, then I would suggest using an RS9009 in the front instead of a 9010 because it has the same amount of travel, but it is one inch shorter which gives you more compression, but less droop. I recommend looking at Ed Stevens page (http://members.aol.com/Stvns/XJhelp2.html) for information about selecting proper shock length.

You might also note that I am not running any spring clips. While this isn't really advised because you have to pay very close attention to your spring pack, it does free up a few inches of droop.

Other related Websites:

Ed Stevens XJ pages (http://members.aol.com/Stvns/XJhelp1.html) This is one of the best resource of cherokee suspension information on the web.

Chris's XJ site (http://www.geocities.com/~jeepxj/) This site has a photo guide of many different tire and lift combinations. (You can even see my truck when I was only at 5.5" of lift with stock rims).

-Mike Rizzi
XJGPN@aol.com

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