TRAXXAS UNLIMITED DESERT RACER rear L-shape piggy back damper set by GPM UDR13960RR/L  [UDR13960RR/L]

Rear L-shape piggy back dampers for Traxxas UDR

This is an aluminum rear L-shape piggy back damper set designed for the TRAXXAS UNLIMITED DESERT RACER platform, supplied as a 4pcs set for RC-scale rear suspension use. The kit includes two coil-on spring dampers and two internal dampers, intended to reduce friction and absorb impacts to help the model run with improved balance over varied terrain.

The dampers are machined from 6061 T6 aluminum with sealed bodies to limit oil loss, and they use a higher concentration suspension oil for more consistent damping. Shafts are increased from 3.5mm to 5mm for added stiffness, and the coil spring wire is thickened from 1.8mm to 2.0mm while retaining compatibility with original springs when a softer spring rate is preferred. The L-shape piggy back reservoir extends oil travel to smooth out damping response during long strokes.

Practical notes for installation and tuning: check mid-point distances before mounting, the spring damper mid-point is listed at 139mm and the internal damper at 160mm, confirm shock tower and shock mount clearance, start with stock springs if unsure, and adjust oil weight and preload to refine rear-end behaviour for your driving surface.

This GPM UDR13960RR/L damper set is a direct-fit aftermarket option for builders upgrading the rear suspension of TRAXXAS UNLIMITED DESERT RACER models, offering stiffer components and a piggy back reservoir for more stable damping with standard installation and tuning steps.