Our TJ 3.5 X-Factor Long Arm systems feature our revolutionary independent 3 link front end with track bar. This design dominates the professional rock crawling world while maintaining excellent streetabiliy and handling. Our full length upper control arm keeps caster change to a minimum and the front upper bushing at the differential is replaced with a build a ball joint for maximum articulation. This system features a triangulated 4 link assembly in the rear eliminating the need for a rear track bar. The lower control arms feature a high clearance design to maximize ground clearance and cross over angles, are made of 2 solid alloy steel, use a Pro Flex Joint at the frame connection and a Monster Krawler Joint at the axle connection. Our modular skid plate design clam shells the frame top and bottom with no side drilling required. With the 3 piece construction, servicing of the driveline is a snap and does not involve any suspension modifications. The frame rail members can be bolted in or welded on. We use a weld in cradle and tie-in plate made from thick laser cut steel to add structure to the rear axle. System Benefits: High clearance lower control arms made from massive 2 solid alloy steelRevolutionary independent three link front end for awesome flex and controlRear triangulated 4 Link that allows for removal of the rear track bar and provides anti-squat for better climbing ability Triangulated 4 links are more robust than tri link designsThe smooth bottom 1/4 thick steel skid plate mounting design adds 1 of ground clearance and structure to the frameWeld on rear cradle for greater rear axle strengthRTI 1400+ on a 20 degree rampAllows for 33 tiresLimited Lifetime WarrantyUpgradeable to any of our higher lift long arm systems or coil over products System Includes: (4) Triple rate coil springs(4) High misalignment/adjustable lower long arms (1) Adjustable front upper control arm(1) High misalignment/adjustable front track bar(2) Front adjustable sway bar disconnects(2) Front sway bar link straps(1) Skid plate and skid plate mounting brackets(2) Rear upper triangulated 4 link arms(1) Rear triangulated 4 link mounting cradle/axle truss (3) Extended stainless steel brake lines (2) Extended rear sway bar links *includes hardware and detailed instructions. NOTES! 1. Available for most common axle combinations (Dana 30, 44, 60, Ford 8.8, Dynatrac ProRoc's). Can be adapted to fit Currie Rock Jock 60's and Solid 60's by rotating the rear cradle into the proper position instead of using the alignment tool provided. 2. Requires a SYE with C.V. Driveshaft. 3. With long rear uppers, a custom cat back exhaust is required. 4. Rubicon Edition TJ's require a new rear driveshaft. 5. 2003 TJ's equipped with 4 speed automatics will require removal of the factory automatic transmission skid plate if so equipped to allow for proper front driveshaft travel. 6. Requires removal of the OEM rear upper control arm mounts off the rear axle. 7. Recommend using rear shock relocation brackets or rear shock shifters for some applications. 8. Choose your bump stop lengths after you choose your wheel/tire and fender combination. 9. Typical wheel fitment for a 12.5 wide tire is a 15 x 8 with 3 3/4 of back spacing.