TRAXXAS MAXX Harden Steel #45 Front/Rear Differential Ring Gear by GPM TXMS12F/R/G1  [TXMS12F/R/G1]

Hardened #45 ring gear for TRAXXAS MAXX

This GPM aftermarket ring gear is a single 1pc replacement designed for the TRAXXAS MAXX monster truck drivetrain. Machined from Harden Steel #45, the part focuses on tighter gear mesh and improved power transfer inside the differential case without altering the original layout.

Intended role and tuning impact: replacing a worn or stock ring gear with a hardened #45 steel unit reduces backlash between mating gears, which can make the differential feel crisper under load and help maintain consistent power delivery during acceleration and heavy throttle runs. The part is a straightforward drivetrain reinforcement for hobbyists wanting durability and more stable gear engagement.

The ring gear is a direct-focus upgrade for MAXX owners seeking a tougher, lower-backlash internal gear to support aggressive running and reduce wear; confirm fitment with your MAXX differential case before installation.