GPM Racing Spring Steel Front+Rear Sway Bar & Aluminium Sway Bar Arm & Stainless Steel Linkage-23pcs Set for Traxxas 1/7 Unlimited Desert Racer-85076-4 (SUDR312FRS)

Precision sway bar and linkage upgrade

This 23 piece precision-focused kit replaces the stock front and rear anti-roll components on the TRAXXAS UNLIMITED DESERT RACER with stainless steel sway bars and machined aluminium sway bar arms to provide improved stiffness and repeatable performance under high load. The upgrade is engineered for hobbyists seeking a robust, serviceable anti-roll solution.

Fitment uses the original sway bar mounts and the set includes a 3.5mm reamer to allow controlled enlargement of factory positioning holes when thicker bars require it. Each aluminium arm has two tie rod positions to enable fast tuning of roll transfer and steering balance without altering spring rates or damping.

Use this assembly to refine mid-corner roll behaviour, minimise unwanted body roll at speed, or rebalance the chassis after other suspension modifications. All references are to RC-scale parts for hobby-grade applications.

Original Name / Part No:

(F)8598+8596,(R)8598+8597

Specifications

• Item: TRAXXAS UNLIMITED DESERT RACER front and rear sway bar, arms and linkage set, 23pcs.
• Material: Stainless steel sway bars, aluminium sway bar arms, stainless steel linkages and screws.
• Model Number: GPM SUDR312FRS
• Compatibility: TRAXXAS UNLIMITED DESERT RACER
• Package Contents: Front sway bar arm 2pcs, Rear sway bar arm 2pcs, Front sway bar 1pc, Rear sway bar 1pc, Front+Rear linkage 4pcs, Stainless steel button head screw 3×12 2pcs, Stainless steel button head screw 3×14 2pcs, Stainless steel round head screw 3×16 8pcs, 3.5mm reamer 1pc.
• Notes: Sway bar thickness increased from 2mm to 3.4mm, use included 3.5mm reamer to open positioning holes if needed.

A precision upgrade path for hobbyists who want stiffer anti-roll characteristics and adjustable linkage geometry while keeping serviceability and durability in mind.

What are the key materials and benefits?

Stainless steel bars resist flex and wear while aluminium arms reduce rotating mass and provide precise mounting for linkages, improving repeatability and load tolerance.

How does the included reamer aid installation?

The 3.5mm reamer lets you carefully open and deburr factory locating holes so the thicker 3.4mm bars seat cleanly without stressing plastic mounts. Use light passes and check alignment.

What tuning range do the dual positions provide?

The two tie rod attachment points change the effective lever arm on the arms, offering a practical adjustment range for roll transfer and understeer/oversteer balance without altering springs or shocks.

Are replacement fasteners available?

All fasteners included are stainless steel in the sizes listed; if replacements are needed match head type and length to preserve fit and clearance. Write Product Review Please sign in your account before you can write any review. Sign In Close

Made to order: GPM Racing parts are shipped to us from GPM’s factory, so please allow around 14 days for dispatch.