915
Motorsport final drive 8:35
Porsche Motorsport final drive 8:35 in top quality, replacing the 7:31 whose tooth spread at the pinion head is unfavourable and damaged on almost every second gearbox.
What we do
Services for Porsche Gearboxes.
What is made here.
Seven service areas, one workshop: drawing, turning, gear cutting, hardening, grinding and setting up stay in-house — from one-offs to small series.
Porsche Gearbox Rebuild
Porsche gearbox repair and rebuild to factory spec, 356 to G50. Every gearbox runs on our test bench before it ships — photo documentation included.
Limited-Slip Differentials
Limited-slip differential for Porsche 901, 904, 906, 911, 915 — 25–75 % lock. Newly made on the ZF principle, as reproduction or overhauled.
Drive Shafts & Stub Axles
Drive shafts and stub axles to drawing or sample: machined from solid, heat-treated, with any spline profile. Uprated versions available.
Gears & Splines
Gears and gear parts to drawing — internal and external up to 500 mm and module 8, on our own machines. One-off to small batch.
Motorsport Gear Sets
Homologated gear pairs for the 901, 904, 906 and 908 including the Nürburgring ratio, plus the 8:35 final drive for the 915 — much from stock.
Prototypes & First Samples
Prototypes and first sample parts for industry: from drawing or sample to finished part — turned, gear-cut and measured in house.
Reproduction Parts
Parts no longer available we make new — from a sample, even a broken original. From stub axle to complete final drive.
Porsche gearbox rebuild and repair from one workshop
At the centre is the Porsche gearbox rebuild: the gearbox is fully stripped, every part inspected and measured, the final drive set to factory specification with original tooling — and every rebuilt gearbox runs on the test bench before it leaves. Whether you call it a repair, an overhaul or a rebuild: you get a binding quote after stripping, photo documentation of the work and all replaced old parts back.
What the manufacturer no longer supplies is made new here — clutch-type limited-slip differentials on the ZF principle, final drives and homologated gear pairs, drive shafts and stub axles and reproductions from sample or drawing. Much of it is finished and in stock: the parts catalogue shows 43 newly made parts for the 904, 906, 901, 356 and 915.
Parts catalogue
Newly made. In stock.
Housings, clutch-type LSDs, final drives, axles and gear parts made in-house in Ottrau, Germany.
904 / 906
ZF clutch-type LSD, uprated
Porsche 904/906 ZF clutch-type limited-slip differential, uprated version with Nadella flanges.
356
Final drive 7:31, uprated, 12-bolt
356 final drive 7:31, uprated version with 12-bolt mounting.
356
Uprated swing axles from 110 hp
Uprated swing axles for the 356 for engine outputs from 110 hp, with matched splines in the brake drums / wheel hubs.
Porsche gearboxes
Gear parts from a sample – BMW M1
Gear parts made from a sample, pattern or drawing — here the camshaft drive of a BMW M1 engine.
915
ZF clutch-type LSD with oil pump drive, 915/72
Porsche ZF clutch-type LSD with oil pump drive and Turbo stub axles for the Porsche 915/72 gearbox with oil cooler coil. No longer available from Porsche for a long time.
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