These two gear diff shafts are intended for use in the LAZER ZX7.5 differential assembly and are offered as a matched pair. They replace worn shafts that can cause excess play and inconsistent diff response during running.
Fitment is restricted to LAZER ZX7.5 variants using the same internal gear diff layout, so confirm compatibility with your chassis before fitting. The pack provides two pcs to service both sides of a standard gear differential.
Installation guidance: treat this as a scale RC maintenance item. During a diff service, remove the unit, clean the internals, inspect the gears and bearings, then install the new shafts with correct spacing and grease. Proper seating prevents binding and supports reliable operation.
Performance note: fresh shafts reduce lateral play and help the diff engage more predictably. For best results, inspect spur and pinion mesh and bearing condition at the same service interval.
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