Long Arm Upgrade Kit for Jeep Wrangler 4WD (1997–2006)
- Fits 1997–2006 Jeep Wrangler 4WD. Does not fit Unlimited models
- Front and rear adjustable upper and lower control arms, mounting brackets, track bar drop bracket, Rubicon compressor bracket, and hardware
- Greasable X-Flex joints: 2.5-inch body, 1.25-inch thread, 20 degrees of upper pivot and 35 degrees of lower
- Exhaust must be cut and rerouted; slip yoke eliminator with CV driveshaft recommended (Rubicon needs the CV shaft only)
- Install time: 8-9 hours. Downloadable installation guide available
The Trail Fortress check
Will it fit your truck?
✓ Fits
✕ Does not fit
- Unlimited models
A Slip Yoke Eliminator with CV Driveshaft is recommended to avoid driveline vibration. Rubicon models do NOT need a SYE kit or transfer case drop but a CV driveshaft is still recommended. Exhaust will have to be cut and rerouted to make sure it is away from the moving components. Fitment on this page is based on the manufacturer’s application data.
About this kit
Long Arm Upgrade Kit, fitment-checked
A long arm upgrade kit for the 1997–2006 Jeep Wrangler in 4WD, built around X-Flex adjustable control arms with Clevite OEM-style rubber bushings and greasable flex joints. The front and rear sets bring mounting brackets, a track bar drop bracket, a Rubicon compressor bracket, and hardware. It does not fit Unlimited models, and the exhaust has to be cut and rerouted clear of the new components.
This is the deep end of Wrangler suspension work: replacing the short factory arms with high-clearance long arms on 1997–2006 4WD models. The joints do the talking: 2.5-inch bodies on 1.25-inch threads, greasable, with upper pivots moving up to 20 degrees and lowers up to 35. Plan the install carefully. Unlimited models are excluded, the exhaust has to be cut and rerouted away from moving parts, and a slip yoke eliminator with CV driveshaft is recommended; Rubicon models skip the SYE and transfer case drop but still want the CV shaft. Figure 8-9 hours. Shipping weight: 150.6 lb.
What’s in the box
Kit contents
- 1× Kit Box 1663BOX4
- 1× 663x Kit Box 1663BOX5
- 1× Kit Box 1663BOX6
Rough Country shares subassemblies across kits, so individual package labels can carry broader application ranges. The complete 66300U kit fits the vehicles shown in the fitment section above.
Specifications
Specs
| Brand | Rough Country |
| Part number | 66300U |
| UPC / GTIN | 00843030124946 |
| Shipping weight | 150.6 lb |
| Country of origin | US |
| Category | Suspension & Lift Kits › Control Arms & Track Bars |
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