Mountain Off Road 9930 - Manual (Page 2)

STEP 1: With the Jeep® on flat level ground (concrete), jack up the front axle and place it on jack stands.
Remove the front tires/wheels. Remove the stock steering linkage (tie rod and drag link).
STEP 2: The pitman arm has a tapered hole that the drag link attached to. This hole must be drilled to
5/8”. M.O.R.E.™ has found it best to remove it from the steering box (this requires a pitman arm puller). Place it
in a drill press or milling machine for this step. See figure 1. This can be done with a hand power drill with the
pitman arm on the vehicle, if you can drill the hole very accurately. You be the judge.
STEP 3: The drivers side knuckle has a tapered hole that the tie rod attached to. This hole must be drilled
to 5/8”. M.O.R.E.™ has found it best to remove it from the axle housing and place it in a drill press or milling ma-
chine for this step. See figure 2. This can be done with a hand power drill and the steering knuckle on the axle
housing, if you can drill the hole very accurately. You be the judge.
STEP 4: The passenger side knuckle requires several modifications that require grinding, drilling, and
tapping. M.O.R.E.™ has found it best to remove it from the axle housing so that you can grind on it using a
bench vise. The other modifications are best performed using a drill press or milling machine. Please read
through these instructions and you be the judge as to whether or not you remove it to perform these tasks.
The first modification that needs to be performed is grinding. There is a ridge called “flashing” that is on
the section of the knuckle between the upper ball joint and arm where the tie rod attaches. This flashing must be
ground to flat. See figure 3A & B.
The next area that needs to be ground on is the inside of the arm. See figure 4 A & B. The triangle area
needs to have the upper section ground slightly so the M.O.R.E.™ steering bracket (9923) fits “flat” against the
inside mounting surface. Use the two 1/2” holes and 1/2” x 3-1/2” bolts to locate the bracket. Imagine the 9923
bracket is bolted down tightly to the knuckle, the inside area that you are grinding on cannot let the 9923 bracket
“rock” back and forth. So grind just enough of the arm to allow the bracket to fit without rocking.
Now, go ahead and bolt the 9923 bracket to the knuckle tightly using the 1/2” x 3-1/2” bolts and nuts.
Locate the three holes in the 9923 bracket that are above the area on the knuckle that you ground the flashing
from in figures 3A & 3B. With a 27/64 bit in your drill, slightly dimple the knuckle using the 9923 bracket as a
guide. See figure 5. DO NOT DRILL all the way through!!! All you are doing is finding center of these holes.
Remove the 9923 bracket from the knuckle. Clamp the knuckle in the table vice of your drill press or milling ma-
chine and level the surface to be drilled. With a 21/64 drill bit in the chuck, drill the three dimpled holes all the
way through. Now, tap the 21/64 holes with a 3/8-24 fine thread tap.
Reattach the 9923 bracket to the knuckle with the 1/2” x 3-1/2” bolts and nuts, and the 3/8” x 1” bolts sup-
plied. Tighten all five bolts with hand wrenches.
With the 9923 bracket now attached tightly to the knuckle, clamp the assembly in the vice of your drill
press or milling machine with the 9923 bracket up. The 5/8” hole in the 9923 bracket will locate where you drill
the knuckle. (In some cases the 5/8” hole in the 9923 bracket will not be centered directly over the top of the ta-
pered tie rod hole in the knuckle. This is due to the wide tolerances the factory had in producing the knuckles.)
Level the arm of the knuckle (it must be 90° to the drill bit) that the tie rod attaches to. See figure 6. Drill the
knuckle to 5/8”. See figure 7.
STEP 5: Remove the assembly from the vice and remove the 1/2” x 3-1/2” bolts and nuts. Remove the
3/8” x 1” bolts and remove the 9923 bracket . Paint the knuckle to keep it from rusting. Install the knuckle on the
front axle housing. Place a lock washer, flat washer and a dab of your favorite thread locking compound on the
3/8” bolts. Place the 9923 bracket on the knuckle and start the 3/8” bolts in the tapped holes. Place a dab of
thread locking compound on the three factory 13MM-12 point bolts, and start them through the 9923 bracket and
knuckle and into the wheel bearing hub. Do not tighten any of the bolts at this time. Snug tighten only.
Coat the threads of the Heim joints with anti-seize compound to keep them lubed and install the jam nuts
on the Heim joints. Install the Heim joints in the tie rod and drag link. Remember, there are left and right threads
in each, so don’t force fit the left Heims in the right threads! Place a spacer on top of the knuckles and then place
the tie rod on top of the spacers. Place one more spacer on top of the Heim joints. On the passenger side you
will sandwich these between the knuckle and bracket. The 5/8” x 3” bolt is for the drivers side and the 5/8” x 3-
1/2” is for the passenger side. (It may be necessary for you to install the 1/2” thick spacers or “lift” blocks under
your spring packs to allow the tie rod to clear the leaf springs. These are included with this kit). Install the crimp
lock nuts on the 5/8” bolts and snug tighten the crimp lock nuts.
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