Shock Therapy - Polaris General Billet Steering Rack Race Rack Polaris General

Important: This rack requires aftermarket tie rods with 5/8" rod ends on each end. Stock tie rods are not compatible. This is a race part with no warranty and will require periodic rebuilding.

Design Overview

After experiencing a factory rack failure during racing, this custom race rack was engineered to eliminate common steering issues like bump steer and premature wear. The design maintains proper tie rod pivot width to preserve front-end geometry and prevent the steering instability caused by inferior aftermarket alternatives.

Key Features

1. 7075 Aluminum Construction: High-grade aluminum nearly as strong as carbon steel for superior durability.
2. Hard Anodized Plating: Hardened surface prevents wear and extends internal rack life.
3. Dispersed Grease Passage Lubrication: Single grease fitting feeds six internal points including the pinion gear, rack gear, and stress load areas. Requires only two grease gun pumps every 1000 race miles.
4. 1" x 1" Square Rack Gear: Twice as thick as stock round gears at the tooth base with 125% stronger material. Square design prevents twisting and eliminates pinion gear forces that cause snapped teeth.
5. Pre-Heat Treated Rack Gear: Machined from pre-hardened material for perfect straightness with less than 1 thousandth inch runout, allowing zero-tolerance body clearances.
6. Patent Pending Gear Tooth Design: Custom tooth design with twice the base thickness of standard systems for superior strength.
7. Heat Treated Pinion Gear: Solid 4140 Chromoly material heat treated to 60 Rockwell hardness—harder than a carbon steel drill bit.
8. Pinion Bearings: High-tolerance $30 bearings with custom retainer plate featuring a 10 thousandth step for vertical preload without restricting pinion movement.
9. Faster Steering Ratio: 1.5-turn lock-to-lock system (versus 2-turn factory standard) for quicker response while maintaining comfortable steering feel with electric power steering.
10. High Quality Rod Ends: 5/8" FK JMX10-T Teflon-lined rod ends rated for a full Best in the Desert racing season.
11. Patent Pending "Taper Lock" Jam Nuts: Machinist tool taper design locks rod ends and jam nuts in place without loosening. Also serve as steering stops.
12. 4130 Chromoly Clevises: Solid construction with high-tolerance 5/8" shoulder bolts. Available in three styles:
    • Weld-on clevis for 1" .120 wall or 1.25" .095 wall tubing
    • 5/8" threaded clevis for aftermarket tie rods and long-travel kits (Assault, Cognito, Long Travel Industries)
    • Extended threaded clevis for Lone Star tie rods

Note: This race rack does not fit 2017-2018 XPT models. See the 2017-2018 XPT Race Rack listing for that application.