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Old 12-07-2012, 08:17 AM
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Ray Bell Ray Bell is offline
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Default Wheel lug pattern?

I have seen on a list somewhere on the internet that the Pitch Circle Diameter of the Town & Country or Voyager or Caravan models is 100mm...

However, on the same list it said 4" or 100mm, and there's a lot of difference between these dimensions when you're bolting up wheels!

Can anyone please tell me for sure what the dimension is?
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Old 12-07-2012, 03:54 PM
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It is NOT 4", although my Dad used to use older 4" Dart wheels on his newer 86 Dodge 600 rear in the winter. However, he didn't do much hi speed driving with them. Same thing is true of some of the new Chrysler wheels, which are not the same as the old 4.5", either. Some guys advocate them, some don't. I say, it puts strain on the studs and may run off center.
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Old 12-07-2012, 10:41 PM
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It depends on what year van you are talking about and the factory wheel size. Some vans had a different bolt pattern for 14" wheels and 15" wheels.

100mm or 4" wheels are pretty common to find. 4" may be a nominal size but really it's only 1.6mm difference between 4" and 100mm. So divide 1.6mm by 2 and your talking about 0.031" or 1/32" difference from the center of the wheel to the stud. That's pretty insignificant in my opinion.
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Old 12-08-2012, 06:51 AM
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Ask an engineer...

You won't find one of them doing this.

But my question is about the exact dimensions anyway.
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Old 12-08-2012, 03:49 PM
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I don't understand why in 'ell the manufacturers just HAD to start screwing with patterns, anyway. The newer cars are a mess. Some of the Jeeps and others use a mix of two patterns, utterly stupid Since it takes more tooling to make different rotors, wheels, etc, this makes no sense.

I agree with Ray, here. They are enough different, in my opinion, to stress and bend the studs. Even if you don't break one, you may bend some of them a little, and then the correct wheels will not fit true, either.
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Old 12-08-2012, 04:22 PM
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Have you seen the 7-bolt fixing on some Ford pickups?

What kind of thinking is behind that?
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Old 12-16-2012, 07:15 PM
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My 90 caravan is 5x100 a Grand caravan is 5x114.
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Old 12-16-2012, 08:45 PM
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Quote:
Originally Posted by Ray Bell View Post
Have you seen the 7-bolt fixing on some Ford pickups?

What kind of thinking is behind that?
Well at least it's "obviously different". I can remember the old Renaults had THREE lug bolts

Did you know that the newer 8 bolt 3/4--1 ton pickups are not the same bolt pattern as the older "standard" one? WHAT was the thinking behind THAT?

Newer Jeep Cherokees, Grand Cherokees, and some Mopars seem to be a mess of at least 2 bolt circles. Completely stupid
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Old 12-16-2012, 09:09 PM
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As I understand it, some time in the mid to late seventies the pickups went to the same bolt pattern as the big Chryslers... 5 on 5.5", which is shared with a whole bunch of stuff around the world.

I would suggest that the thinking was carrying capacity, even if the old one did the job.

Not only Renaults, but Peugeots up to the 404 had the 3-bolt pattern. There was one Citroen which had a single bolt (I kind you not!), though most have a broad 5-bolt pattern. The Peugeot station wagons, however, had a 5 on 5.5" pattern, but when the 504 sedans went to a 4 on 140mm the wagons did too!
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Old 12-16-2012, 09:11 PM
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Quote:
Originally posted by MOD 50
My 90 caravan is 5x100 a Grand caravan is 5x114.
Is that definitely 100mm and not 4.0"?

And surely the 114mm is a translation of some imperial size?
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Old 12-16-2012, 10:16 PM
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Quote:
Originally Posted by Ray Bell View Post
Is that definitely 100mm and not 4.0"?

And surely the 114mm is a translation of some imperial size?
positive.... tried a 5x4 rally wheel will NOT fit. have str4 neon wheels on my Voyager also. I think but have not tried a 5x4.5 but i believe is 114mm
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Old 12-21-2012, 01:57 AM
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I found on a hot-rodding website that 114mm is actually 114.3mm which is 4.5"...

Not as far out as 100mm is from 4.0", but still out.
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