GTERAG M60 GEARBOX

[borderbob11]

I have a Getrag M60 dogleg gearbox with the following ratios which have been checked 3 times, maybe not exact ratio but fairly close.

1st. 2.4 to 1
2nd.1.7 to 1
3rd. 1.4 to 1
4th. 1.15 to 1
5th. 1 to 1 direct drive.

On the bottom of the box this number is stamped: 245/11.60NR46
I believe it to be either E21 or E30 M20 sport box, but have never seen these ratios before.
Anybody know what car is is from?

[aeropilot]

I doubt that's a production car set of ratio's......!?

Those ratio's are very close to the old Getrag 235/5 Race gearbox set, which was 2.300 1.560 1.280 1.090 1.000.

[borderbob11]

Thanks for the info, reckon it has to be a race box with those ratios.

[aeropilot]

borderbob11 said:

Thanks for the info, reckon it has to be a race box with those ratios.

Could be a E30 M3 Group A race gearbox, which had the following ratio's......?

1st 2.337:1
2nd 1.681:1
3rd 1.358:1
4th 1.150:1
5th 1.000:1

Maybe worth emailing the gearbox ID code or serial numbers to Prodrive, they might be able to confirm?
Might be worth a few quid.