Journey with Confidence RV GPS App RV Trip Planner RV LIFE Campground Reviews RV Maintenance Take a Speed Test Free 7 Day Trial ×
 


Reply
 
Thread Tools Display Modes
 
Old 08-24-2014, 06:47 PM   #1
Senior Member
 
MountainBikeRoamer's Avatar
 
Join Date: May 2014
Location: OrangeCounty, CA
Posts: 1,275
Garage
Importance of matching OEM Center Bore on new wheels?

Hi guys, I'll try to keep this as short as I can.

I've just recently picked up a set of Cragar "Soft 8" Steel wheels in a 16x8 size, with the correct 8x6.5 bolt pattern to fit on my '95 Ford E250-based Sportsmobile. (RB30 layout, 2WD, 5.8L). I'm planning on mounting a slightly-up-sized (but still factory OEM optional size for E250) set of 245/75/16 Cooper Discoverer AT3's on them.

Question:
Is it absolutely critical for an aftermarket set of steel wheels to have the same, identical center-bore opening as the OEM (factory original) wheels had on them? (Such that the wheel will be truly, properly hub-centric)?

I'm sure these aftermarket wheels are made to fit Ford, GM, and Dodge considerations, which I know all have different center bores.....but I thought Ford had the largest bore (which I believe is 4.88" for 1995), and yet these wheels come with an even-larger 5.150" center bore. This over-sized center-bore opening would make these wheels be lug-centric when I mount them.

For the weight of these rigs, should I be concerned about that? I've read elsewhere several opinions that for steel wheels, it's not a problem. (And that for almost all aftermarket wheels, which are made to fit a lot of different considerations, they almost always err on the side of making the center bore extra-large.)

Hub-centric? Lug-centric? Does it matter for these rigs/wheels?

Again, thanks you guys!!!
Cheers -

__________________
Mike T
___________________
'95 Ford E250 RB30 PH
MountainBikeRoamer is offline   Reply With Quote
Old 08-24-2014, 07:31 PM   #2
Senior Member
 
86Scotty's Avatar
 
Join Date: Jul 2011
Location: TN
Posts: 10,222
Re: Importance of matching OEM Center Bore on new wheels?

I wanna know too.
86Scotty is offline   Reply With Quote
Old 08-24-2014, 08:07 PM   #3
Senior Member
 
carringb's Avatar
 
Join Date: Jan 2009
Location: Corvallis, OR
Posts: 5,300
Re: Importance of matching OEM Center Bore on new wheels?

The E-series does not require hub-centric wheels. However lug-centric wheels can have some vibration issues that are less likely in hub-centric wheels, since they don't seem to get the tolerance attention that the hub-centric wheels get.

Also, as the lug-seats wear out (which does happen with alloys) the vibration issues increase.

My wheels are lug-centric, but the lug seats are not worn out enough they will be replaced at my next tire change. I would like to hub-centric wheels, but they are much harder to find, other than OEM wheels.
__________________
2000 E450 dually V10 wagon
carringb is offline   Reply With Quote
Old 08-24-2014, 10:18 PM   #4
Senior Member
 
MountainBikeRoamer's Avatar
 
Join Date: May 2014
Location: OrangeCounty, CA
Posts: 1,275
Garage
Re: Importance of matching OEM Center Bore on new wheels?

Carringb - thanks for the info!

Going ahead with the wheels I've got.

On another issue --- I picked these up in a zero-offset version, which I believed would keep the steering feel (especially bump steer) closest to the factory original wheel/tire combo, even though the rim is one inch wider. (8" vs. the factory 7") Am I correct?

*What I could never seem to confirm was that the OEM steel 16x7" rims were indeed zero-offset wheels, though they did appear that way. (I know, I could have pulled a wheel and measured exactly .....) honestly though, I thought I'd come across the spec somewhere that the factory wheels (at least in 1995) were zero offset.
__________________
Mike T
___________________
'95 Ford E250 RB30 PH
MountainBikeRoamer is offline   Reply With Quote
Old 08-25-2014, 12:06 PM   #5
Senior Member
 
MountainBikeRoamer's Avatar
 
Join Date: May 2014
Location: OrangeCounty, CA
Posts: 1,275
Garage
Re: Importance of matching OEM Center Bore on new wheels?

Okay, may have answered my own question here.

From this thread: viewtopic.php?f=15&t=4602&view=next
It sounds like the factory wheel offset (for the steel 16x7 8-lug wheels) was +6mm.

So a zero-offset wheel like I've picked up will be pretty damn close.
I think the commonly-used ATX Teflon wheels are zero-offset wheels.
__________________
Mike T
___________________
'95 Ford E250 RB30 PH
MountainBikeRoamer is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

» Featured Campgrounds

Reviews provided by

Powered by vBadvanced CMPS v3.2.3
Disclaimer:

This website is not affiliated with or endorsed by Sportsmobile SIP or any of its affiliates. This is an independent, unofficial site.


All times are GMT -6. The time now is 10:44 AM.


Powered by vBulletin® Version 3.8.8 Beta 4
Copyright ©2000 - 2024, vBulletin Solutions, Inc.