101 PCD - stud size - rim width and offset

[Mick_Marsh]

I'm toying with an idea.
I'm thinking of getting some rims made up for one of the 101's so it will be possible to source a more common tyre size. I don't want to destroy the existing rims. I'm thinking of going to a larger diameter rim as well as probably going wider.
I've been told that this is not possible to do as the centres of the wheel will be made from flat plate.
Does anyone know where I can find the PCD, rim width, rim offset and stud size in print so I can use these as a starting point of discussion with the wheel manufacturer.
What are other peoples thoughts on the mechanics of what I am about to do?
What are the maximum widths and offsets do the knowledgable think I should go?
Should I worry about a flat plate centre?
Is having the wheel nuts countersunk important?

regards
Mick

[101RRS]

I'm toying with an idea.
I'm thinking of getting some rims made up for one of the 101's so it will be possible to source a more common tyre size. I don't want to destroy the existing rims. I'm thinking of going to a larger diameter rim as well as probably going wider.
I've been told that this is not possible to do as the centres of the wheel will be made from flat plate.
Does anyone know where I can find the PCD, rim width, rim offset and stud size in print so I can use these as a starting point of discussion with the wheel manufacturer.
What are other peoples thoughts on the mechanics of what I am about to do?
What are the maximum widths and offsets do the knowledgable think I should go?
Should I worry about a flat plate centre?
Is having the wheel nuts countersunk important?

regards
Mick

Eastern Wheel Works will make up a 8" or 9" wide 16" rim for the 101 for about $380 each or put a 8" rim on your centres for $150. They didn't have a problem with a flat face as they will just use thicker plate to ensure it is strong enough.

I checked all this out about 18 months ago. I just took all the measurements from my spare wheel as I could not find where it is written down - the PCd is about 220mm from memory (too lazy to measure it now) and the stud holes are about 20mm.

Initial thoughts were that there was enough body clearance to choose the best offset to match current steering/suspension setup.

You will need to have the wheel holes countersunk to take the 101 wheel nuts.

EDit - the 20" wheels from a smaller Unimog will fit with no modifications

Garry