Help with steering wheel hub fitment

[Luvmeadeadpedal]

I have a lovely vintage MOMO Monte Carlo wheel I have owned since new in 1988 that I have been wanting to fit on my M100.

I have yet to find a hub adapter that will fit the M100. I purchased both a MOMO and a Grant adapter that were purported to work with the Elan. Every list of wheel hubs are categorized by car and not size e.g. 14.5mm shaft / 28 spline.

I have searched the interwebs and called MOMO directly to try and get something that would fit but to no avail.

My car is a 1991 federal model and was the very first one sold retail in the US according the documents I got with the car and the size is 14.5mm with 28 splines.

I have tried a Grant 4509 that fits Isuzu vehicles and the MOMO was supposed to fit a Lotus Elise. I am out $200 ish on hubs now without much success and wanted to see if any of you cracked the code here with this?

Thanks in advance for any wisdom.

[Giniw]

There was a guy who sold "custom" hub boss for the SIR Esprit, and as the steering wheel is the same ugly pontiac one, I would guess the splines are the same.
Basically he sourced his hubs from the ugly steering wheel spares and soldered a plate on it.

I can't find it at the moment but he sold them on ebay and I think he was a member of lotustalk.com.

I think more guys discuss about this on lotustalk as the Pontiac steering wheel was mandatory, so more people want to replace it.
For instance, see https://www.lotustalk.com/threads/curre ... st-1681757