Alternative diff - crown wheel & pinion ratios available new to order, all come with the correct new companion (pinion) flange and solid pinion spacer

Ratios available to suit a DB MkIII, DB2/4 MkII or any Feltham with 4 HA axle fitted:

3.31:1 - this ratio is the highest we think a tuned MkIII will take, needs to have very good torque at low rpm, most properly ported & tuned Alperform heads that we have built will provide this amount of torque.

3.54:1 - this ratio is the highest we think a std MkIII engine will happily take, absolutely ideal for German autobahns & French motorways

3.73:1 - this is the only alternative ratio to the original 3.77:1 we can supply

3.92:1 - this is good ratio between std & factory 'liked' ratio for overdrive cars, not suitable for non overdrive cars if used for touring.

4.11:1 - this is the ratio the factory often fitted by AML to give better acceleration on a lot of overdrive cars, not suitable for non overdrive cars if used for touring.

4.27:1 - really only suitable for a competition or trackday car that has a properly tuned engine.