I'm pretty positive this question has been asked before but I couldn't find the answer on here.

I have an A+ 1275 block I am currently rebuilding. I am in need of a gearbox to suit. I have seen a 22G1832 gearbox. My understanding is these are off a Leyland, so not A+. What mods (if any) are required to get this gearbox to mate to the A+ block?

Last question (and perhaps the most contentious) is this gearbox suitable for a high torque motor e.g. turbo 1275 or am I better off trying to get an A+ gearbox and gearset?

Thanks.

_________________
1970 Mini Deluxe - 1275, Weber, Clive 346 cam, MS 4-pot slotted discs, Megajolt ignition Now with new improved Mambas... almost on the road
1966 Van with Traveller rear seat conversion
2008 Prado GXL
All in various states of repair...

Any wide case gearbox will fit, even a 3 syc out of a M1100S. Just make sure you have the correct input gears (Idler & Primary) to suit the gearbox 1st motion shaft.

_________________
Have a Nice Day.
If already having a nice day please disregard.

The 22G1832 is an 'early' rod shift. It will fit any A series Engine, including the A+. Make sure you have a 1275 Primary gear to suit (same as Cooper S and 1100S) as the 998 one won't fit the tail of the 1275 crank.

This gearbox will take high torque engines OK, however if you can get a hold of an A+ gearbox, preferably an early one up to about 1983 / 84 manufacture it will last longer. Be sure to get the transfer housing and drop gears with it too as these are also different.

As far as ratios go, these early A+ have the same ratios as the early Rod Shift and Mini K. You can fit an 18 tooth 1st motion shaft (getting hard to find now) and a Cooper S Laygear (also getting a little thin on the ground) and then you'll have Cooper S MKII Gear ratios, however it will also mean going to the '2 step' type layshaft, which takes away some of the advanages of the A+ gearbox. There are Cooper S style A+ Laygears however these are exceedingly rare.

_________________