4x95mm -> 4x100mm?

I'm finding links about people running 4x100 wheels on 4x95 hubs without re-drilling. Are wobble bolts the answer? Is their some type of offset stud?? A crazy off-the-wall idea I'd never think of???

Unfortunately there are no machine shops in the area capable/willing to do work like re-drilling hubs/rotors/drums.

Wobble bolts are what folks seem to be using these days.

The wobble bolts I've been around are only good for 2mm.

what runs a 4x95? I know fiat/Lancias run 4x98

I suppose you could open up the holes in the wheels until the bolts fit, but redrilling the hubs is the way to go. Offset drill the stud hole so the centers are now at 4X100. Press in larger knurled end studs from a Dodge pickup/Jeep application. Done a half dozen or so and it works great. Need to drop another set off at the local machinist for the TR8 I just finished.

mad_machine wrote: what runs a 4x95? I know fiat/Lancias run 4x98

Triumph Spitfire (and I think TR7 and TR8) and Lotus Europa for sure.

Ding ding ding, Europa it is!

Not that I've even had time to work on it yet, but I can start planning, right?

tr8todd wrote: I suppose you could open up the holes in the wheels until the bolts fit, but redrilling the hubs is the way to go. Offset drill the stud hole so the centers are now at 4X100. Press in larger knurled end studs from a Dodge pickup/Jeep application. Done a half dozen or so and it works great. Need to drop another set off at the local machinist for the TR8 I just finished.

This is what I did on my Europa. A retired tool and die maker buddy of mine did the work for me. Here's a shot of it wearing a set of Miata rims

They are not 95 mm, they are 3.75"
OK, so it's only 0.01" different, but IF you had said 3.75", then we would have known exactly what you were asking about.
So the important part is getting the wheels centered correctly onto the hubs(as on the Spitfire).
As a younger man, foolish, and broke, I actually ran Fiat wheels on the front of a Spitfire for a couple of years. The studs would bend just enough to fit.

I did some googling to confirm size(for some reason I was thinking it was 98mm), and the results were split between 3.75" and 95mm. Granted, I didn't pull out the workshop manual to double-check official specs.

Besides 3.75"->100mm sounds way more difficult.

I have to say that your best bet would be to pony up some money for some bolt pattern adapters.

If there are no machine shops in your area, you might find someone here that would be willing to help you out by building some adapters or putting you in touch with someone who can.

4-bolt to 4-bolt is relatively easy and if you know the offset of the wheels you'd like to use, you can get the adapters built to make full use of those wheels.

There's also this: http://www.emachineshop.com as an alternative.

95.25 MM

petegossett wrote: I'm finding links about people running 4x100 wheels on 4x95 hubs without re-drilling. Are wobble bolts the answer? Is their some type of offset stud?? A crazy off-the-wall idea I'd never think of??? Unfortunately there are no machine shops in the area capable/willing to do work like re-drilling hubs/rotors/drums.

My retired Tool and Die Maker buddy is willing to do the machining for $100. He already has the jig made from my car so you don't have to pay for the set up. Shipping and the cost of the wheel studs would be your responsibility.

If the hubs on a Europa are similar to a Spifire, I'm not sure how you would re-drill. IIRC, the casting webbing is in the way of new holes.

You can buy 3.75" to 100 mm adaptors all day long on eBay.
The 1" thickness of the adaptor plate works out perfectly to use common. FWD 100 mm wheels.
I have a set, they are well made, come with everything you need.

Linky linky, erohslc? Any pics? It's getting near wheel time on Dr.Linda's Europa.