HD Adjustable Front LCA Set - JK Wrangler (80 duro/ShA) Trailing Arm Assembly Kit - Lower — TRC1189
The TRC1189 adjustable front lower trailing/control arm kit corrects pinion angle on lifted Jeep Wrangler JK models while improving on- and off‑road performance. A complete, ready-to-install upgrade with SuperPro bushings.
Features and Benefits
- Engineered to correct the pinion angle on lifted Jeep Wrangler JK vehicles for better driveline geometry.
- Adjustable design enhances both on-road stability and off-road capability.
- Supplied as a complete kit, fully assembled with SuperPro bushings (80 duro/ShA) for longevity and durability.
- Optimized SuperPro bushings deliver performance without any unwanted NVH.
- Eliminates undesirable arm movement to maintain better steering geometry in all driving conditions.
- Easy, direct-replacement upgrade—developed by SuperPro’s Australia-based R&D team; designed, tested and engineered in Australia.
- Upgraded arm design, construction, materials and bushings to enhance vehicle handling and performance.
- SuperPro tip: Replace both arms at the same time to preserve correct geometry and operation.
- Part number / SKU: TRC1189.
- SuperPro offers a lifetime warranty on all Polyurethane products and a 3 year or 36,000 mile warranty on all metal products, end links and ball joints.
| Fitting Position | Front Axle |
| Installation Difficulty | Suspension Specialist recommended |
| Installation Time | 2.5 Hours |
| Kit Contents | 2 Arms |
| Recommend Wheel Alignment | Front Wheel Alignment |
| Warranty Period | Limited Lifetime Warranty |
| Wheel Alignment Required | Yes |
| Material hardness (durometer) | 80 duro/ShA |
| Compatibility | ||||||
|---|---|---|---|---|---|---|
| JEEP | WRANGLER | 2007-2018 | WRANGLER JK | Trailing Arm Assembly Kit - Lower | Trailing Arm Assembly Kit - Lower | Front Axle - Standard | Front Axle |