01 / Build Journal · Latest entry

Old car.New parts.

CAD design, FEA stress analysis, and CFD flow simulation, translated into real components. Documented end to end in the Build Journal.

Getrag 260 rebuild
21 Jun 2026 Build Journal

Getrag 260 Rebuild

Complete disassembly, synchro replacement, bearing refresh, and reassembly of the BMW Getrag 260 5-speed. Tolerances, gear ratios, and fluid specification documented.

BMW E30Getrag 260M20RebuildTransmission
02 / More from the journal

Recent builds

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M20B27 stroker build
15 May 2026BMW E30 · Engine Build

M20B27 Stroker Build

The OEM+ recipe, 81mm ETA crank, 1988 short skirt pistons, and a ported 885 head to build the naturally aspirated M20 BMW should have shipped from the factory.

Read the build
04 / The shop

Parts built to engineering spec. Not spec sheets.