What we do for the 356 gearbox
7:31 final drive
ring and pinion as a new production — ground gear teeth instead of milled and lapped, with measurement report.Steel differential housing
the original housing is the known weak point with uprated engines. Our version in CrMo steel with 12 mounting holes handles the extra power long-term.Reproduction from samples
worn or broken parts are measured and made new — from drawing creation to the heat-treated finished part.Uprated swing axles
for engine outputs from 110 hp, with matched splines in the brake drums / wheel hubs — newly made, in stock.Long 4th gear 21:28 (i = 0.75)
for the 519 and 716 synchromesh gearboxes, in stock.
Typical problems this solves
- The differential housing has been flexing or cracking since the engine was uprated
- The final drive is worn and unavailable as a new part anywhere
- A single gearbox part is missing and blocks the entire restoration
Why inquire here
356 restorations rarely fail for lack of will — they fail on one single unavailable part. That is exactly what a gear-cutting workshop with its own production is for: what no longer exists is made new here, dimensionally faithful to the original.
In stock for the 356
- 7:31 final drive with 12-hole mounting — ground, numbered, with measurement report, ships immediately
- 356 complete package for engine outputs of 110 to 150 hp: steel differential with 12-hole mounting, 7:31 final drive, uprated axle shafts with adapted splines, tall 4th gear