Rock Krawler showed up to the party with a centrally located single rear upper-control arm design that was one of two in the lineup. The kit required some welding, but the welding adds a substantial upper cradle to the axle and an axle truss over the pumpkin. The drag link and track-bar geometry looked right-on during the inspection, but only after driving it for three days will we know how well it'll work.
Notables
* Independent three-link rear with antisquat geometry
* High-clearance control arms
* Adds retainer clips to front springs
Praises
* Most dialed-in front end in the entire lineup with no bumpsteer
* Nice on the washboard sections
* 100 percent thrill ride
* Straight during emergency braking
Complaints
* Suspension-induced rear steer not as impressive as the front
* Weld-on truss leaves too many customer variables
* Rear rolls in corner
* No sway-bar disconnects
Specifications
| Upgrade driveshafts? | Yes |
| Any driveshaft bind? | No |
| Steering correction? | Yes |
| Remote-reservoir shocks? | No |
| New front sway bar links/brackets? | Yes |
| New rear sway bar links/brackets? | Yes |
| Extended front brake lines or drop brackets? | Yes |
| Extended rear brake lines or drop brackets? | Yes |
| Emergency brake cable length addressed? | Yes |
| Any brake lines tight at full droop? | No |
| New front track bar as tested? | Yes |
| New rear track bar as tested? | Yes |
| Any drilling required? | Yes, track-bar bracket, |
| | front bumpstops |
| Ability to adjust front-axle caster upon lift? | Yes |
| Anything break? | No |
| No. of control arms supplied as tested: | 7 |
| | (single rear upper arm) |
| Claimed lift height (in) | 3 1/2 |
| Actual measured lift height at end of test (in) | 3 7/8 |
| Base price | $1,649 |
| Price as tested | $1,998.99 |