Suspension and Components› Suspension Kits

Rock Krawler Suspension

21C WRANGLER JT 4.5IN ALUM TRAIL RUNNER SYS W/ PB+J LOWER MID ARMS FRONT & REAR

$9,342.84

SKU: R01V JT45PENL-DTR

Special Order
Special Order
Ships in 4–6 weeks
Free Shipping
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Advanced — 4+ hours

Description

Complete, bolt-in mid-arm suspension system designed for Rubicon owners seeking maximum articulation. Features PB+J (Pure Beef and Jealousy) mid arms machined from 2"x3" billet 7075 Aluminum for lowers, and round 7075 Aluminum for the other 6 control arms, all with X-Factor built-in. Offers 95 degrees of misalignment with Pro-X Krawler Joints and Adventure Series joints. Allows precise tuning of caster and pinion angle. Includes No-Limits billet front sway bar links (compatible with Rubicon E-Disconnect) and track bar geometry corrections.

Fitment

Fitment Guaranteed

Don’t gamble
on fit.

Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

BrandRock Krawler Suspension
Part NumberR01V JT45PENL-DTR

Buy with Confidence

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

View Full Return Policy