Gearbox upgrade

Gearbox upgrade

Author
Discussion

cav773

Original Poster:

39 posts

120 months

Tuesday 17th March
quotequote all
Hi Guys. Perhaps someone far more knowledgable than I could help with a problem I have.
I have located a Mini GT1275 gearbox remote change type. I wish to use on a 1275 A+ engine. I am ok with the remote change side of things but what mods will I have to make to the GT box considering the difference in wheel diameters 12inch to 10inch on the Mk1 I want to use it in.
Thanks in advance for any help given.

Lesgrandepotato

269 posts

55 months

Tuesday 17th March
quotequote all
Really won’t make any real difference, the rolling radius is only about 5% both came with the same diff ratios from the factory.

cav773

Original Poster:

39 posts

120 months

Tuesday 17th March
quotequote all
Thanks for that, seems another thing I don’t have to worry about,

Touring442

1,565 posts

165 months

Sunday 5th April
quotequote all
You will need to use A Series drop gears, not A+ ones./