Same Silverback long arm geometry as the standard upgrade, with the billet PB+J lower control arms swapped in front and rear. They are machined from 2 inch by 3 inch billet 7075 aluminum, which Rock Krawler says gives incredible strength and appearance. This one is sold for gas Gladiators.
What's in the box
- (1) Weld-on front long-arm mounting system
- (1) Heat Shield Products Sticky Shield kit
- (1) Skid plate
- (2) Billet 7075 aluminum PB+J adjustable front lower control arms
- (2) Adjustable front upper control arms
- (2) Rear billet 7075 aluminum PB+J adjustable lower control arms
- (2) Rear adjustable upper control arms
- (1) Rear bolt on Pro-X cradle (welding optional)
Why this upgrade
- PB+J (Pure Beef and Jealousy) front and rear lower control arms in billet 7075 aluminum.
- High-clearance 4-link front and triangulated 4-link rear, with the rear track bar eliminated.
- Fully service-free Adventure Series joints with 70 degrees of misalignment, and fully adjustable upper and lower control arms.
- Lifetime warranty coverage, as listed by Rock Krawler.
Fitment and what else you'll need
Sold for the 2020 and newer Jeep Gladiator JT, gas models only (Rock Krawler lists it as gas only). Check the list above for what is and isn't in the box before you plan the rest of the build.
- Sport and Overland wheel fitment recommendations: 37/38 inch tall tires - recommend 3.5 inches of back spacing
- Mojave fitment recommendations: 37 inch tall tires - recommend 4.5 inches of back spacing; 40 inch tall tires - recommend 3.5 inches of back spacing
- Sport and Overland with full OEM fenders: 37 inch tall tires (3 inch bump stop height recommended)
- Sport and Overland with trimmed or high lined OEM fenders: 38 inch tall tires (3 inch bump stop height recommended)
- Mojave with full OEM fenders: 37/38 inch tall tires (3 inch bump stop height recommended)
- Mojave with trimmed or high lined OEM fenders: 40 inch tall tires (3 inch bump stop height recommended)
- Gas models only.
- Rock Krawler recommends a new front driveshaft if you plan to off-road routinely (Adam's Driveshaft, Tom Woods, J.E. Reel).
- An optional Pro-X cradle is available for Dynatrac XD60 rear axles (Rock Krawler part RK08078) and for Ultimate Dana 60 and Currie low pinion 60 rear axles (RK08068). Fusion makes its own trusses, so order theirs with the axle and remove Rock Krawler's supplied truss from the order.
- Rock Krawler recommends welding the rear cradle for use with 37 inch tires and above.
- Requires welding of the front long arm mounting system.
- Requires removal of the OEM frame side lower front control arm mounts.
- Requires removal of the OEM frame side front upper control arm mounts.
- Requires removal of the OEM axle side track bar mount.
- Rock Krawler recommends installing limiting straps to avoid over extension of suspension components after vehicle is all set up.
Rock Krawler lists lifetime warranty coverage on its systems.