HPI Baja Rear Lower Arm Alloy Repair Part BJ056 by GPM  [BJ056]

Rear lower arm replacement for HPI Baja

This aluminium rear lower arm serves as a repair and upgrade option to reduce rear suspension flex on HPI Baja buggies. It is intended to match stock geometry while offering improved rigidity where needed for consistent handling.

The item is supplied as a single arm intended to replace damaged plastic components and to provide a stable mount for the hub and linkage. Use with the original HPI Baja rear suspension parts and check that existing hardware is serviceable prior to fitting.

Practical advice for fitting: confirm hinge pin alignment and ball stud seating, use thread-lock on steel-fastening points, and check suspension articulation through its full range to make sure there is no interference. A stiffer arm can reduce compliance and alter traction balance, so review shock settings after installation.

A straightforward aluminium swap for those repairing rear suspension or seeking a firmer baseline for tuning work.