Lone Star Racing Lower A-Arm and Knuckle Kit for Polaris PRO R

The Ultimate Front-End Upgrade for Your Polaris PRO R

Elevate your suspension with the Lone Star Racing Lower A-Arm and Knuckle Kit, precision-built to withstand brutal off-road conditions and deliver superior control. Designed specifically for the Polaris PRO R, this heavy-duty lower suspension system is Baja-tested and proven by Branden Sims, surviving 1300 miles of extreme terrain without a single hint of play in the uniballs.

This kit replaces your stock lower A-arms and knuckles with high-strength 4130 chromoly construction and TIG welding. The kit features a vertical 1" FK uniball lower pivot, a 3/4" FK uniball shock mount, and optimized tie rod geometry for improved steering feel and reduced feedback. All mounting points are double shear, maximizing strength and durability in the harshest environments.

Note: This system requires Lone Star Racing Adjustable Upper Control Arms for proper fitment (sold separately).

Key Features:

• Compatible with Polaris PRO R and Turbo R
• Includes Lower A-Arms and Knuckles
• Constructed from 4130 Chromoly with TIG welds
• 1” FK vertical uniball lower joint and 3/4” FK shock uniball
• Double shear mounts for all pivot points
• Enhanced tie rod placement for reduced steering feedback
• Retains factory hubs, brakes, and chassis hardware
• Compatible with any tie rod kit using 3/4” heim joint
• Misalignment spacers included
• Optional upgrade: Shock Therapy Tie Rod Kit (+$849.95)

Installation Requirements:

• Requires use of: Lone Star Adjustable Upper Control Arms
• Works with existing factory hubs and brakes
• Bolt-on compatibility with most 3/4” heim joint tie rod kits

Availability & Shipping:

This product may carry a lead time of up to 10 weeks depending on stock. For time-sensitive orders, please contact us to confirm availability. Some orders may be subject to a restocking fee.