The GPM aluminum rear knuckle arm set is made for the ARRMA KRATON 6S BLX Monster Truck to improve long term durability and rear-end stability. The components are precision produced to keep the universal joint and bearing aligned for smoother rotation under load.
Built from quality aluminum with POM plastic components, these knuckle arms reduce clearance between bearings and the steering cup for a tight, predictable fit. That mix of materials helps resist bending and avoids loosening during hard runs.
There are four mounting positions on the upper section of each knuckle arm so you can alter the tierod angle to match handling preferences or track conditions, giving more control over rear steering behaviour.
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