Overview
The Daystar KJ02011BK is a black polyurethane frame shackle bushing for front or rear leaf spring shackles. It is a direct fit upgrade over stock rubber bushings and allows less deflection while cornering.
The polyurethane blend resists vehicle fluids and road grime. The bushings can help restore steering feel at the front of a vehicle, and the kit suits restoration projects as well as worn rubber replacement. Early model CJs require modifications, and two kits are needed per vehicle.
Key features
- Black polyurethane construction
- Designed for front or rear shackle positions
- Allows less deflection while cornering
- Resists vehicle fluids and road grime
- Non-greaseable design
- Limited lifetime warranty from Daystar
Choosing bushing material
Frame shackle bushings sit at the ends of the spring shackles and control how the leaf spring moves relative to the frame. Rubber can soften, crack or compress over time, while polyurethane keeps its shape better under load, which tends to give a firmer, more direct response. Firmness is a trade-off, so a truck used mostly on pavement and a rig run on rough trails may want different bushing choices.
Polyurethane bushings generally need a compatible assembly lubricant on the sleeves during installation, because dry fits can squeak. Since this kit is non-greaseable, there is no grease fitting to maintain, and periodic inspection takes the place of routine service. Check the frame brackets for rust and make sure the shackle pins are straight before the bushings go in, since a bent pin can quickly damage a new sleeve.
Specifications
| Brand | Daystar |
|---|---|
| Part number | KJ02011BK |
| UPC | 814423014410 |
| Color | Black |
| Material | Polyurethane |
| Position | Front or rear |
| Service | Non-greaseable |
| Fitment type | Direct fit |
| Kits needed per vehicle | 2 |
| Warranty | Limited lifetime |
Vehicle fitment
Early model CJs require modifications. Confirm fit for your vehicle’s year, model and trim before ordering.
Confirm your vehicle’s year, model and trim before ordering.
Installation notes
Two kits are needed per vehicle, and early model CJs need modifications. Review the required modifications against your vehicle before starting the job.
What’s included
Two kits are needed per vehicle. Check the package contents against your installation before starting.
Not included: Shackles and spring hardware are not included.









