Please note; The following information has been copied from another web site, and is all the information available.

I believe it to be of us use to Robin Hood builders.

Diff ratios and Gearbox ratios

Diffs
1.3 models = 3.77:1
1.6 models = 3.62:1 - saloon and hatch
1.6 models = 3.92:1 - estate
1.6 models = 3.38:1 - economy
1.8 models = 3.62:1 - 4 speed and auto
1.8 models = 3.92:1 5 speed
2.0 models = 3.62:1 - manual/carb
2.0 models = 3.38:1 - auto
2.0 models = 3.92:1 - manual EFi
2.0 models = 3.62:1 - Auto EFi


To identify the ratio in a particular diff, check out the Donor car. the third piece of data up from the left (Axle) will give a letter, this denotes the Ratio.

M=3.14. A=3.36. V=3.38. U=3.62. 3=3.64. and D=3.92.   (thanks to Graham Dockerill for this information)

Gearbox
1st = 3.65:1
2nd = 1.97:1
3rd = 1.37:1
4th = 1.00:1
5th = 0.82:1
reverse = 3.66:1