https://rcpieces.co.uk/product/traxxas-maxx-4s-widemaxx-high-carbon-steel-spiral-front-differential-ring-gear-43t-pinion-gear-10t-gpm-upgrade-trx8978/
TRAXXAS MAXX 4S WIDEMAXX MAXX SLASH 6S HIGH CARBON STEEL SPIRAL FRONT DIFFERENTIAL RING GEAR 43T &...