This is a list of final drive ratios which were available in various cars that will fit in the MGA (and early MGB) banjo type rear axle.
| Model |
Engine |
Rear Axle Ratio |
Teeth R/P |
Max. Brake HP |
Kerb Weight lbs. |
Wt/HP Ratio |
| Austin A55 van, Morris JU and J2 vans |
---- |
5.125 |
41/8 |
-- |
---- |
------- |
| Austin A10cwt & A15cwt vans, early Sherpa van |
---- |
x.xxx |
xx/x |
-- |
---- |
------- |
| Morris Cowley 1200 |
BP12M |
5.125 |
41.8 |
42 |
2464 |
58.67 |
| MG ZA Magnette |
BP15GA |
4.875 |
39/8 |
60 |
2464 |
41.07 |
| Austin A50 & A55 & Wolseley 15/50 |
---- |
4.875 |
39/8 |
50/55 |
---- |
------- |
| Morris Oxford series II |
BP15M |
4.875 |
39/8 |
50 |
2464 |
49.28 |
| Morris Oxford series III low compression |
BP15ML |
4.875 |
39/8 |
50 |
2464 |
49.28 |
| Morris Oxford series III high compression Morris Oxford series IV |
BP15MH |
4.875 |
39/8 |
55 |
2464 |
53.11 |
| MG ZB & ZBV Magnette |
BP15GC |
4.556 |
41/9 |
68 |
2464 |
36.23 |
| Austin A60 pickup (and van) |
16AC-16AD |
4.556 |
41/9 |
61 |
2200 |
36.07 |
| Austin A55 mk2, A60 Countryman, Morris Oxford series 5, Morris Oxford Traveller Series 6, Wolseley 15/60 |
---- |
4.556 |
41/9 |
-- |
---- |
------- |
| MG Magnette mk3 & mk4, Austin A60, Morris Oxford series 6, Riley 4/68 & 4/72, Wolseley 16/60 |
---- |
4.3 |
43/10 |
-- |
---- |
------- |
| MGA 1500 Tourer, early |
BP15GB |
4.3 *1 |
43/10 |
68 |
1988 |
29.23 |
| MGA 1500 Coupé, early |
BP15GB |
4.3 *1 |
43/10 |
68 |
2015 |
29.63 |
| MGA 1500 Tourer |
15GB-15GD |
4.3 *1 |
43/10 |
72 |
1988 |
27.61 |
| MGA 1500 Coupé |
15GB-15GD |
4.3 *1 |
43/10 |
72 |
2015 |
27.99 |
| MGA Twin Cam Tourer |
16G-16GB |
4.3 *2 |
43/10 |
108 |
2185 |
20.23 |
| MGA Twin Cam Coupé |
16G-16GB |
4.3 *2 |
43/10 |
108 |
2245 |
20.79 |
| MGA Twin Cam Tourer, late |
16GB |
4.3 *2 |
43/10 |
100 |
2185 |
21.85 |
| MGA Twin Cam Coupé, late |
16GB |
4.3 *2 |
43/10 |
100 |
2245 |
22.45 |
| MGA 1600 Tourer |
16GA |
4.3 *1 |
43/10 |
79.5 |
2016 |
25.36 |
| MGA 1600 Coupé |
16GA |
4.3 *1 |
43/10 |
79.5 |
2075 |
26.10 |
| MGA 1600 Mk.II Tourer, High Compression |
16GC |
4.1 |
41/10 |
90 |
2016 |
22.40 |
| MGA 1600 Mk.II Coupé, High Compression |
16GC |
4.1 |
41/10 |
90 |
2075 |
23.05 |
| MGA 1600 Mk.II Tourer, Low Compression |
16GC |
4.1 |
41/10 |
85 |
2016 |
23.72 |
| MGA 1600 Mk.II Coupé, Low Compression |
16GC |
4.1 |
41/10 |
85 |
2075 |
24.41 |
| MGB Tourer 1962-1967 |
18G-18GB |
3.909 *3 |
43/11 |
95 |
2030 |
21.37 |
New manufacture special
www.autogear.co.uk |
---- |
3.7 |
37/10 |
-- |
---- |
------- |
| MGA at Le Mans in 1955 |
1500 |
3.308 *4 |
43/13 |
-- |
---- |
------- |
‘B’-Series engines and banjo-style rear axles were used for all MG ZA, ZB, MGA, and early MGB
*1 Optional gear set: 4.556
*2 Optional gear set: 4.875
*3 Optional overdrive on later models, final drive including OD = 3.14
*4 Limited production 43/13 gearing from 1955, very rare. See next page
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