This Yokomo B7-010RA unit is a rear universal shaft that uses an aluminum 44mm dogbone designed for BD7 applications. The part is presented as a direct-replacement style rear dogbone assembly with C-clip retention, intended for RC-scale driveline use rather than full-size vehicles.
The assembly is described as lightweight and uses an aluminum bone to maintain geometry and serviceability at the rear axles. The package is noted to contain 2 pcs, allowing a left-and-right set for a single car's rear driveline.
Fitment is specific: check axle diameter and hub interface before installation. Typical installation involves removing the rear dogbones and C-clip retainers, fitting the aluminum bone into the outdrive cups, and re-securing the C-clips. Verify range of motion and clearance with suspension droop and wheel offset before running.
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