GMADE R1 Precision Adjustable Main Shaft GM237SAN by GPM  [GM237SAN]

High-precision adjustable shaft assembly

This adjustable main shaft assembly is supplied for the GMADE R1 ROCK BUGGY as a multi-piece kit permitting fine control of axle and steering link lengths. The construction pairs a high-strength steel shaft with an alloy-bodied head to deliver a balance of rigidity and serviceability suited to low-speed rock crawling applications.

Design elements retained include a universal swing-shaft cross-head to extend steering and articulation range, and a pinned shaft head to minimise the risk of head disengagement under vertical loading. The package includes measured adjustable segments and protective silicone rings to reduce direct metal-to-body contact and help preserve mating surfaces.

Use this assembly when precise wheelbase and steering geometry adjustments are required, or as a replacement for fatigued cross shafts after demanding crawling sessions. Perform routine inspections of the retaining pin and silicone O-rings to maintain alignment and detect wear early. For exact adjustment limits and assembly instruction refer to manual GM54311 rather than this descriptive text.

Engineered for precision tuning on trail rigs, this shaft set provides adjustable ranges and locking details that support reliable geometry adjustment while keeping service straightforward.