This precision machined alloy transmission spur gear case cover is supplied as a 1pc set and is identified by part SCX038GCA. It is engineered as a replacement-style cover for SCX10 and Wraith spur gear housings to provide enhanced rigidity compared with standard polymer components.
Designed for hobbyists who service and tune scale crawlers, the cover is used during gearbox disassembly for inspection, when replacing a worn lid, or when fitting upgraded driveline parts that benefit from a stiffer housing. It locates to the original mounting pattern so compatible chassis require no structural modification for fitment.
From an upgrade perspective this part is a chassis-level improvement: it does not alter gear ratios but increases gearbox stiffness and reduces deformation under load, helping to keep gear mesh consistent during low-speed, high-torque crawling tasks.
Select this single-piece alloy cover for a robust replacement that matches SCX10 and Wraith spur housings while supporting routine gearbox maintenance and improved on-trail durability.