Porsche 964 Gearbox Rebuild

Rebuild to factory specification, parts from our own production and documentation

The 964 carries the G50 gearbox family — robust, but after thirty-plus years ready for the workbench. We rebuild its gearbox to factory specification, from synchro rings to a properly set ring and pinion.

What we do on the 964 gearbox

Rebuild to factory specification
complete stripping, inspection of all bearings, synchromesh and shift elements, ring-and-pinion setup, test-bench run.
Parts from our own production
as the market for early variants thins out, we machine replacements — gear parts, shafts, small components.
Documentation
photo records of all work, return of all replaced parts.

Typical problems this solves

Stiff, notchy shifting — usually synchro rings and guide sleeves
Oil loss at aged shaft seals
Howling final drive after improper previous repairs

Why inquire here

The 964 is the link between the classic and the modern 911 — its gearbox deserves both: classic craftsmanship and exact measurement. Here it gets both, with a test-bench run at the end.

A different gearbox type?

356 550 901 902 904 911 906 912 914 907 915 916 908 930 908/03 G50 910 917 935 956 962

From the workshop

Common questions

01 Which gearbox does the Porsche 964 have?

The 964 carries the G50 gearbox family. It is regarded as robust, but after more than thirty years it belongs on the bench.

02 What are the typical faults on a 964 gearbox?

A stiff, notchy shift from worn synchro rings and guide sleeves, oil loss through aged shaft seals, and a howling final drive after improper earlier repairs.

03 What is included in your rebuild?

Complete strip-down, inspection of all bearings, synchromesh and shift components, setting up the final drive and a test-bench run. Plus photographic documentation of the work and the return of every part that was replaced.

Inquiry

What is on your bench?

Gearbox type and a few lines about your request — that is all we need for a first assessment. A photo helps but is not required. The answer comes from the machinist, not from sales.

Send inquiry

Reply usually within 24 hours — from the managing director himself, no ticket system, no call centre. We call back on request.

or directly: 06628 9159093 · info@antriebstechnik-schmidt.de