"Quote:
Originally Posted by JimF
I was told that fiat had there own standards and other manufactures wheels won’t align. Glad I got that cleared up.
Quote:
Originally Posted by distortionrockets
of course! im so thick
so does that meen they do fit or not!! "
Just to add for the original question: FIAT do indeed use wheels different from most manufacturers - the PCD (Pitch Circle Diameter) of the four studs is 98mm. Most manufacturers (e.g. Toyota, Mazda, Honda) use 100mm PCD. These wheels won't fit. Some people use 'floating' bolts where the shoulder of the bolt rests on a movable collar. But it's usually not worth the aggro unless you have some really special alloys...
You also need an offset (the setting-in of the wheel mounting flange relative to the rim) of about 34mm. This offset changed most about when front-wheel-drive became popular, so many people refer to it as a 'FWD' offset. There's more to fit inside the wheel with FWD - namely, the CV joint pivoting on an axis coinciding with the swivel of the steering knuckle. I am guessing a little here, but I think that this required the bearing and hub to move outwards, resulting in the wheel needing to be a different shape with the flange closer to the outside. Looking at early FWD cars (e.g. Austin 1100/1300, Allegro) shows this very clearly.
http://en.wikipedia.org/wiki/Morris_1100
Subsequent designs have more 'normal'-looking wheels.
Having the wrong offset gives nasty steering problems, as I learned the hard way with my 128 Coupe.
Safest bet then is to pick wheels off a FWD car, especially a FIAT/Lancia/Alfa, though some Renault wheels also have the correct PCD.
This is all a little irrelevant in the context of this thread (sorry!
) as there are heaps of Uno steel wheels around for spares. My friend jjhepburn has a stack of at least eight.
Cheers,
-Alex