Steering wheel fitting

[Chapmag]

Hi, I'm about to buy a Mounteney Steering Wheel for my Mk1 but it doesn't come with a Boss.
Is there any difference over the years on how the steering wheel fits the steering column or would a Boss advertised as Mk2 compatible fit?
Thanks in anticipation, G.

[LarryLebel]

Do not MkIIs have the horn incorporated in the turn signal switch, so a MkII boss would not have a horn button.

[Chapmag]

I'm now looking at one that is described as..

Mountney Steering Wheel Boss Kit in Black Billet Suitable For Classic Mini 1977-95

Suitable for all Traditional Mountney steering wheels with 6 or 9 holes. The kits comes with Black and Silver securing screws for your own preference.

48 Splines, 18mm Bore

With horn push

12v Positive horn feed on the rear

I've measured my steering column and it is 48 splines and 3/4" diameter, my car is positive earth but I'm guessing the horn feed on the back of this boss would take a negative to my horn no problem?

Am I missing something or is it just these adverts don't consider the older minis as a viable market?

[timmy201]

For a Mk1 I’d try and get an Astrali 1A (or similar) boss kit. They have the provision for the mk1 horn button, and they also taper in towards the steering column

While the Mountney kit will work ok, you’ll need to wire the horn button into the wire out of the column and also the steering column shroud doesn’t line up as nicely

Examples

[Chapmag]

Thanks Timmy, I bought an Astrali off eBay! Here's hoping it fits!! G.

[Automark]

I've just received an email update from the folks at MiniSport about steering wheel mounting, and although it is focused on the MPi cars, it may help someone doing a search:
the text from the email / advert:
Excitement is steering its way to Mini Sport, and we're thrilled to share with you the latest breakthrough in Classic Mini restoration and performance enhancement: The Mini Sport R Range Billet Aluminium Steering Wheel Boss Kits. Designed exclusively for MPi Minis, these kits are setting a new standard in steering customisation and safety.

Unveiling the Mini MPi R Range Steering Boss

Precision-engineered and crafted with passion, our new Steering Wheel Boss Kits are here to revolutionise your Classic Mini's driving experience. Available for both Momo and Moto-Lita steering wheel styles, these kits bring a blend of aesthetics, performance, and safety directly to your fingertips.

It is good that they've created both a Momo and a Moto-Lita variant.
Mark