GMADE R1 Rock Buggy Adjustable Main Shaft GM237SAN by GPM  [GM237SAN]

R1 adjustable cross shaft kit

This adjustable main shaft assembly is made for the GMADE R1 ROCK BUGGY platform and is supplied as a multi-piece kit to tune axle and steering link lengths. It combines a steel shaft core with an alloy-bodied head to balance strength and ease of maintenance during low-speed rock crawling.

Notable mechanical details retained from the source include a universal swing-shaft cross-head to expand steering and crawl articulation, plus a pinned shaft head that helps prevent the head from loosening under vertical movement. The kit also provides measured adjustable lengths and small protection rings to reduce direct metal-to-body contact.

Fit this set when you need to dial in wheelbase or steering geometry for trail rigs, or to replace worn cross shafts after tough sessions. Check the pin lock and silicone O-rings regularly to maintain alignment and avoid premature wear. Consult manual GM54311 for official adjustment ranges and assembly guidance rather than using this description as an installation manual.

Designed for trail and rock crawling setups, this shaft set offers adjustable lengths and locking features that let you fine-tune geometry on the GMADE R1 ROCK BUGGY while keeping routine servicing straightforward.