Mini-Z MR-03 AWD Precision Titanium Main Shaft TMZA025E by GPM  [TMZA025E]

Precision titanium main shaft for Mini-Z AWD applications

This single-piece titanium main shaft is offered as an economy replacement compatible with Kyosho Mini-Z AWD platforms, intended to refresh MR-03 AWD style drivetrains without changing surrounding geometry or alignment.

Compatibility guidance: confirm MR-03 AWD gearbox layout and axle clearance before installation, retain original wave or flat washers and e-clips when matched to the vehicle, and verify spline engagement at the gearbox output to avoid endplay. The shaft is a fit-focused option for hobbyists prioritising improved wear resistance over standard steel shafts.

Technical installation notes: extract the old shaft and inspect all associated bearings for endplay or roughness, insert the replacement maintaining original orientation, and validate free rotation before completing the assembly. Avoid trimming or shimming unless the chassis service instructions explicitly require it.