I have an OMP Trecento wheel for which I need a suitable boss. Trouble is, which one do I need as I don't know what the column is from...other than it being a Ford. It's adjustbale for rake and reach and has one large Blue bolt holding on the "big" padded Ford Wheel. No visible id marks other than manufacture dates. Any advice?
Thanks.

Sounds like an adjustable sierra column.

So a sierra boss. Adjustable or not, boss fits both.

If in doubt stick a photo some one will tell you for sure.

I have used a mk4 escort boss in the past. Same hex fitting but with out the cut out for the indicator self cancel.

[Edited on 5/10/10 by big_wasa]