WRENCH. RACE. REPEAT.
Tested on the Dirt
Real feedback from competitive dirt oval racers and custom scale builders who run our bench-tested OEM pull-offs.
100%
Bench-tested
24hr
Daily shipping
/ RACER FEEDBACK
The Bench Verdict
TRX-4 BUILDER
SCX10 COYOTE
DIRT OVAL SPEC
That OEM pull-off axle was spotless. Stripped on Tuesday, shipped Wednesday, on my rig by Friday.
Mike D., Ohio Racer
Saved thirty bucks buying the bench-tested transmission instead of a retail box. Perfect condition.
Sarah T., Trail Runner
We run these hardened gears in our oval cars weekly. They take massive hits and never strip.
Dave K., Track Director
Upgrade Your Rig Today
Browse our live inventory of verified OEM pull-offs and performance upgrades straight from the workbench.
Smiley Sales
Bench-tested RC parts and OEM pull-offs stripped on camera.
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© 2026 Smiley Sales-Family-owned and bench-tested in the USA.
WRENCH. RACE. REPEAT.
Built for Extreme Abuse
4.9/5
Racer rating
1,200+
Rigs upgraded
0
Stripped gears