Fit the GPM aluminum rear gear box to your ARRMA KRATON 8S to firm up the rear assembly and reduce movement around the differential, dampers, anti-roll bar and knuckle arms. This upgrade helps deliver steadier steering feedback and improved on-track consistency.
Manufactured from 6061 T6 aluminium, the housing balances strength and weight while improving heat dissipation and tolerance control. The result is more predictable steering and longer service life for common wear points.
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