Antriebstechnik Schmidt

Porsche 930 Gearbox

The turbo torque of the 930 still tests its drivetrain today. We rebuild the gearbox to factory specification, remanufacture gearbox shafts and supply the LSD and uprated shafts that can take the boost.

What we do on the 930 gearbox

Rebuild to factory specification
stripping, measuring, reconditioning of all bearing seats and gear wheels, ring-and-pinion setup, test-bench run.
Gearbox shafts for the 930 Turbo
newly made in high-strength steel — the known weak point with power upgrades.
Limited-slip differential
locking value 25–75 %, dimensioned for turbo torque.
Uprated drive shafts and stub axles (915/930)
machined from a single billet and heat-treated.

Typical problems this solves

Uprated engines destroying standard shafts and splines
Turbo-typical sudden load changes hammering bearing seats and drive splines
Inside-wheel wheelspin without an LSD making the power undriveable

Why inquire here

With the 930 it comes down to material: we dimension shafts and gear teeth for the actual torque — not for the 1975 standard specification.

Inquiry

Tell us about your part.

Gearbox type, damage or drawing — that is all we need for a first assessment. The answer comes from the machinist, not from sales.

or directly: +49 6628 9159093 · info@antriebstechnik-schmidt.de