GPM Racing Aluminium Rear L-Shape Spring Damper (139mm) - 2pcs Set for Traxxas 1/7 Unlimited Desert Racer-85076-4 (UDR139R/L)

139mm Rear L-shape Aluminium Damper Technical Overview

This rear L-shape spring damper set is engineered for the TRAXXAS UNLIMITED DESERT RACER as a performance-focused aftermarket component. The matched pair reduces internal friction and improves impact absorption to keep vehicle balance across extended off-road runs.

Engineering notes: spring wire thickness is increased to 2.0mm to provide a firmer spring characteristic while retaining compatibility with original springs for alternate tuning. The damper shaft diameter is enlarged to 5.0mm to resist deformation under high loads. The aluminium damper cylinder and sealed spring retainer lower leakage risk, and the L-shape piggy-back reservoir increases oil capacity to stabilise damping over long strokes.

Service and installation: this item replaces rear shocks and requires standard disassembly of the rear shock mounts. Use common shock tools such as hex drivers. The product is intended for hobbyists and tuners focusing on suspension setup, handling and durability improvements.

Specifications

• Item: Rear L-shape Spring Damper set
• Material: Aluminium damper cylinder
• Model Number: GPM UDR139R/L
• Compatibility: TRAXXAS UNLIMITED DESERT RACER
• Length: 139mm
• Spring wire thickness: 2.0mm (thickened)
• Damper shaft diameter: 5.0mm (thickened)
• Reservoir type: L-shape piggy-back

For precise rear travel control and improved oil management under demanding use, this aluminium L-shape damper set provides a durable upgrade path for the TRAXXAS Unlimited Desert Racer platform.

Does the damper keep original mounting geometry?

Yes. The damper set is designed to maintain stock rear shock mounting geometry for direct fitment to the TRAXXAS UNLIMITED DESERT RACER.

Can original springs be used with the thicker spring wire?

Original springs are compatible and can be fitted if a softer spring rate is required for tuning balance between traction and body control.

What maintenance keeps damping consistent?

Regular inspection of seals, periodic oil replacement and checking fastener torque will preserve damping consistency and service life under heavy use.

What is included with the damper set?

The kit includes 2pcs rear spring dampers intended for rear suspension upgrades. 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.