JavaScript seems to be disabled in your browser. For the best experience on our site, be sure to turn on Javascript in your browser.

Skip to the beginning of the images gallery

S550 Mustang IRS Bushing Upgrade Kit, Level 1

Be the first to review this product

Part Number

KTI-BUK15L1

Special Order

$369.99

This Level 1 KellTrac S550 Mustang IRS Bushing Upgrade Kit for the S550 Mustang positively locates the rear IRS Subframe AND the rear lower control arms within the chassis. By filling the voids within the factory bushings on the Subframe Mounts and putting positive pressure on the factory bushing stops, the PosiLoc kit eliminates the deflection found within the stock assembly that leads to poor performance in all scenarios. By completely removing the sloppy rubber in the factory front Lower Control Arm bushing, the Spherical Bearing kit positively and precisely locate the rear axle knuckle assemblies within the chassis. These Lower Control Arm Bearings are made from only the best materials. The factory rubber bushings, or even aftermarket polyurethane bushings deflect under heavy loads - these bearings eliminate that deflection that leads to poor performance in all scenarios. With our Level 1 kit we provide front centering sleeves to complete the squareness of the IRS Subframe when mounting to the vehicle. Whether you are a spiritedly street cruising, drag racing, road racing or auto-crossing this Level 1 KellTrac Bushing Upgrade Kit will significantly improve the performance and feel of your S550 Mustang.

FEATURES: KellTrac Posi-Loc

-CNC Machined Lightweight Design

-6061-T6 Billet Aluminum, Anodized Black
-Precision fitment for maximized performance
-Zero NoiseVibrationHarshness Increase
-Industry First Unique rear lower design, replaces factory bushing stop plate

FEATURES: Rear Control Arm Bearing Kit

-Most Proven S550 LCA Bearings

-Super Strong CNC Machined Steel Body

-Most durable coating in the industry

-6061-T6 Billet Aluminum Bearing Offset Spacers

-Proprietary to BMR 1" Spherical Bearings

-Precision fitment for maximized performance
-Minimal NoiseVibrationHarshness Increase. HIGHLY Recommended for performance applications

FEATURES: Polyurethane Centering Sleeves

-Extremely Lightweight Design

-Precision fitment for maximized performance
-Zero NoiseVibrationHarshness Increase
-Industry First Unique Polyurethane Design

BENEFITS:
-Reduces Wheel-Hop
-Centers Subframe to Chassis
-Improves Handling, Traction and Feel
-Helps prevent bushing and driveline part damage
-Can assist in reducing driveline vibrations
-Reduces pinion angle change under heavy WOT loads
-Reduces unwanted suspension geometry and alignment change under heavy loads