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Dial In Caster With Double Adjustable Front Upper Arms
Lifted Jeeps need adjustable control arms to bring caster back into an acceptable range, and RockJock's CE-9102SF front upper arms are double adjustable so caster can be corrected with the arms still installed on the vehicle. Each arm uses a 1 inch by 0.156 inch wall DOM steel body with a 2 inch Johnny Joint at the frame end and an adjustable axle housing fork at the opposite end, and the kit fits Jeep TJ, LJ, XJ, MJ, and ZJ platforms.
Key Features
- Double adjustable length for caster correction with arms installed
- 1 in. x .156 in. wall DOM steel tubing bodies
- 2 in. Johnny Joint at the frame end, adjustable fork at the axle end
- Semi-gloss black powder coat body and fork, gold zinc plated Johnny Joint adjuster ends
- Fully greasable via zerk-fitted Grade 8 mounting bolts
- Adjustment range from 12.670 in. closed to 16.500 in. extended
Fitment
| Year | Make | Model |
|---|---|---|
| 1997-2006 | Jeep | Wrangler SE (TJ/LJ) |
| 1997-2006 | Jeep | Wrangler Sport (TJ/LJ) |
| 1997-2004 | Jeep | Wrangler Sahara (TJ/LJ) |
| 2003-2006 | Jeep | Wrangler Rubicon (TJ/LJ) |
| 2006 | Jeep | Wrangler 65th Anniversary Edition (TJ/LJ) |
| 2002-2006 | Jeep | Wrangler X (TJ/LJ) |
| 2004-2006 | Jeep | Wrangler Unlimited (TJ/LJ) |
| 2005-2006 | Jeep | Wrangler Unlimited Rubicon (TJ/LJ) |
| 1984-1993 | Jeep | Cherokee (XJ) |
| 1994-2000 | Jeep | Cherokee SE (XJ) |
| 1985-1990 | Jeep | Cherokee Pioneer (XJ) |
| 1985-1988 | Jeep | Cherokee Chief (XJ) |
| 1985-1992 | Jeep | Cherokee Laredo (XJ) |
| 1989-2001 | Jeep | Cherokee Sport (XJ) |
| 1993-1997 | Jeep | Cherokee Country (XJ) |
| 1991-1992 | Jeep | Cherokee Briarwood (XJ) |
| 1996 | Jeep | Cherokee Classic (XJ) |
| 1998-2001 | Jeep | Cherokee Classic (XJ) |
| 1987-1992 | Jeep | Cherokee Limited (XJ) |
| 1998-2001 | Jeep | Cherokee Limited (XJ) |
| 2000 | Jeep | Cherokee Freedom (XJ) |
| 2001 | Jeep | Cherokee 60th Anniversary Edition (XJ) |
| 1987-1992 | Jeep | Comanche (MJ) |
| 1987-1988 | Jeep | Comanche Chief (MJ) |
| 1986 | Jeep | Comanche Custom (MJ) |
| 1988-1992 | Jeep | Comanche Eliminator (MJ) |
| 1987-1988 | Jeep | Comanche Laredo (MJ) |
| 1987-1992 | Jeep | Comanche Pioneer (MJ) |
| 1986 | Jeep | Comanche X (MJ) |
| 1986 | Jeep | Comanche XLS (MJ) |
| 1993 | Jeep | Grand Cherokee (ZJ) |
| 1993-1998 | Jeep | Grand Cherokee Laredo (ZJ) |
| 1993-1998 | Jeep | Grand Cherokee Limited (ZJ) |
| 1998 | Jeep | Grand Cherokee 5.9 Limited (ZJ) |
| 1995 | Jeep | Grand Cherokee Orvis (ZJ) |
| 1997 | Jeep | Grand Cherokee Orvis (ZJ) |
| 1994-1995 | Jeep | Grand Cherokee SE (ZJ) |
| 1997-1998 | Jeep | Grand Cherokee TSi (ZJ) |
Specifications
| Detail | Value |
|---|---|
| Manufacturer part number | CE-9102SF |
| Position | Front upper |
| Adjustment range | 12.670 in. closed to 16.500 in. extended |
| Tube construction | 1 in. x .156 in. wall DOM steel |
| Adjuster fork threads | 3/4 in.-16 RH |
| Johnny Joint adjuster threads | 3/4 in.-16 LH |
| Finish | Semi-gloss black powder coat, gold zinc Johnny Joint ends |
What's Included
- 1 pair of front upper control arms
- 4 greasable 7/16 in. Grade 8 mounting bolts with hardware
About RockJock 4x4
RockJock 4x4, made by Currie Enterprises, engineers Jeep-specific control arms, Johnny Joint rod ends, Antirock sway bar systems, and Currectlync steering components for TJ, LJ, XJ, JK, JL, and JT platforms. RockJock parts are built from forged and DOM steel for off-road durability and are designed to bolt into factory mounting points.
FAQ
Do these arms require modification to install?Yes, the front differential housing bushings must be reamed out to 7/16 in. to accept the mounting bolts.
Can caster be adjusted after the arms are installed?Yes, the double adjustable design allows length changes with the arms still bolted to the vehicle.
What grease is required for the Johnny Joints?RockJock recommends a non-synthetic, hi-moly lube grease such as their CE-9013G.
Do these arms replace both left and right upper arms?Yes, the kit is sold as a pair covering both sides.
Is a special tool needed for Johnny Joint service?Yes, RockJock's CE-9112T tool is used for assembling or disassembling the 2 in. Johnny Joint used on this arm.
What finish is on the arm body?The tube body and fork are semi-gloss black powder coat, with gold zinc plating on the Johnny Joint adjuster end.
Do these arms work with stock ride height?They are designed primarily for lifted applications where caster needs correction, and adjustability allows fitment across a range of lift heights.
Are the mounting bolts greasable?Yes, the included Grade 8 bolts are zerk fitted for greasing.
Installation Instructions
- Support the vehicle and remove the wheels for access to the front control arm mounts.
- Ream the front differential housing bushings to 7/16 in. if not already sized for the greasable bolts.
- Remove the factory upper control arms from the frame and axle mounts.
- Install the new Johnny Joint end at the frame and the adjustable fork at the axle housing.
- Torque all mounting hardware to the vehicle manufacturer specification.
- Set caster with the arms adjusted and installed, then grease all Johnny Joints and bolts.
Prop 65 Warning
This product can expose you to chemicals including lead, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
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