Paul_S
Club Member
I had the wrong pinion gear in my gearbox as it didn't match the rear diff ratio. The speedo was working but showing the incorrect speed.
So I thought I'd save a few quid and bought a new pinion gear (a blue one to replace a red one) and switches gears rather than the whole carrier. All went well (I thought) but now the speedo doesn't register anything. It just occurred to me that each gear is a different size and the carriers are probably subtly different to ensure the gears mesh properly. Does anyone know for sure?
I just dug up this photo from when I swapped gears and looking at this again I think I've answered my own question. I now notice '20' stamped in the carrier which would match the red (20-teeth) gear that used to be in it:
So now I'm on the hunt for an 18-teeth speedo drive...
So I thought I'd save a few quid and bought a new pinion gear (a blue one to replace a red one) and switches gears rather than the whole carrier. All went well (I thought) but now the speedo doesn't register anything. It just occurred to me that each gear is a different size and the carriers are probably subtly different to ensure the gears mesh properly. Does anyone know for sure?
I just dug up this photo from when I swapped gears and looking at this again I think I've answered my own question. I now notice '20' stamped in the carrier which would match the red (20-teeth) gear that used to be in it:
So now I'm on the hunt for an 18-teeth speedo drive...