Wheel bolt pattern confusion

[kat]

I know my wheel bolt pattern is 5x5.5 but when I look on Ebay for rims this is not an option to look for. Am I searching wrong or is there a secret I dont know??

 

[JAFO]

Maybe try 5 x 5 1/2" or something. You can go to Summit Racing and filter on your bolt pattern. Maybe find a wheel you like and if you don't like their price, shop around having a part number of a wheel.

Keep in mind you also want to think about back spacing as well as bolt pattern.

http://www.summitracing.com/search/...tch&SortOrder=Ascending&keyword=wheel 5 x 5.5

 

[MR-CYN]

I had the same problem looking for a 5th spare wheel. I never found a good way to filter that. You just have to browse through the style you're looking for until you see the correct size and pattern. Good luck.

 

[lonesouth]

5x139.7 is what you need

http://www.ebay.com/sch/Wheels-/43953/i.html?_dcat=43953&rt=nc&Bolt%20Pattern=5x139%2E7

 

[lonesouth]

here is a site for calculating offset from backspacing.

http://www.tyresizecalculator.com/tyre-wheel-calculators/wheel-offset-backspace-calculator

 

[lonesouth]

also be sure to check that the hub opening is big enough.

 

[miikee73]

also be sure to check that the hub opening is big enough.

That^^^^^

 

[DirtDonk]

If the wheel companies list vehicles, but not the Bronco, then look for older Jeep CJ fitments. Like they said, just because it has the correct bolt pattern no longer means it will fit because the old hubs were larger and a lot of the newer wheels are "hub-centric" anyway, which puts the center bore right up against the modern smaller hub. Meaning nowhere near enough room for our older ones.
But a CJ listing will work for the Early Bronco.

Paul

 

[Steve83]

This chart has metric conversions for some Ford-common patterns:



This caption lists some vehicles with the same PATTERN, though not necessarily the same offset/backspacing or pilot hole diameter:



This shows how I increased pilot hole diameter on a set of Dodge rims, but at least one is slightly offcenter, making it difficult to balance the tire on a machine. It always rolls centered on the lugs.

 

[kat]

5x139.7 is what you need

http://www.ebay.com/sch/Wheels-/43953/i.html?_dcat=43953&rt=nc&Bolt%20Pattern=5x139%2E7

Ill try looking for that size tomorrow. At work now and Ebay is blocked
I'm looking at 20' rims with a -44 backspace so I should have plenty of room. But I didn't even think about the hub size. I will have to measure and make sure the center hole is big enough for hub. Thanks again. Yall truly do know everything.;D

 

[Apogee]

Ill try looking for that size tomorrow. At work now and Ebay is blocked
I'm looking at 20' rims with a -44 backspace so I should have plenty of room. But I didn't even think about the hub size. I will have to measure and make sure the center hole is big enough for hub. Thanks again. Yall truly do know everything.;D

Backspace does not equal offset, but they do describe the position of the wheel mounting surface, just from different datums. If you're looking for a -44mm offset wheel, that means that the mounting surface is 44mm [1.73"] to the inboard side of the wheel centerline, effectively pushing the wheel out. A positive offset wheel would have a mounting surface to the outboard side of the wheel centerline.

You can convert to backspacing, however you would need to specify a wheel width to do that.

Offset explained with pictures: http://www.discounttire.com/dtcs/infoWheelOffsets.do

Backspacing would be the measurement from the mounting surface to the inner lip of the wheel, and doesn't change regardless of wheel width.

 

[kat]

Backspace does not equal offset, but they do describe the position of the wheel mounting surface, just from different datums. If you're looking for a -44mm offset wheel, that means that the mounting surface is 44mm [1.73"] to the inboard side of the wheel centerline, effectively pushing the wheel out. A positive offset wheel would have a mounting surface to the outboard side of the wheel centerline.

You can convert to backspacing, however you would need to specify a wheel width to do that.

Offset explained with pictures: http://www.discounttire.com/dtcs/infoWheelOffsets.do

Backspacing would be the measurement from the mounting surface to the inner lip of the wheel, and doesn't change regardless of wheel width.

Thank you for the explanation, but at the end of it all I shouldn't have any issues with a 20' and -44 offset right? The problems come with the inner rim hitting either steering linkage or ball joints correct?

 

[Apogee]

Thank you for the explanation, but at the end of it all I shouldn't have any issues with a 20' and -44 offset right? The problems come with the inner rim hitting either steering linkage or ball joints correct?

Without a wheel width, the offset means nothing.

 

[Scoop]

Thank you for the explanation, but at the end of it all I shouldn't have any issues with a 20' and -44 offset right? The problems come with the inner rim hitting either steering linkage or ball joints correct?

Without a wheel width, the offset means nothing.

This. But keep in mind you have to size to avoid (or minimize) rubbing on the radius arms and wheel opening clearance. Backspacing, offset and wheel width all impact these as well. With 20 inch rims you will not have any issues with steering knuckle or ball joint interference.

 

[kat]

I forgot to mention the width Im looking at is 12'

 

[bronconut73]

I forgot to mention the width Im looking at is 12'

A 20 feet by 12 feet wheel would be really big....hahaha


'=feet
"=inches

Sorry for being an ass.

 

[kat]

Go big or go home

 

[Apogee]

Go big or go home

You need to do the math. A 12" wide wheel with a -44mm offset will have an effective backspacing of 4.78". I calculated that by taking the wheel width, lip to lip, which should be approximately 13" and dividing it by 2 to get the theoretical centerline spacing, which would be 6.5". The offset is -44mm, or -1.73" to the inboard side of centerline, so take 6.5" and subtract 1.73", which equals 4.78".

The commonly accepted BS range for 15" wheels is 3.5" to 4.5" depending mostly on the radius arms, where long travel aftermarket arms typically have more tire clearance than the stockers. Wheel diameter shouldn't have any impact on tire placement, so you're going to either need to run spacers and/or live with having limited turning radius. The only way you could feasibly run such wide wheels/tires with such large backspacings would be to run full-width 1-ton axles.

The other interference issue tends to be the tie-rod ends, however with 20" wheels those shouldn't be an issue.

 

[kat]

You need to do the math. A 12" wide wheel with a -44mm offset will have an effective backspacing of 8.23". I calculated that by taking the wheel width, lip to lip, which should be approximately 13" and dividing it by 2 to get the theoretical centerline spacing, which would be 6.5". The offset is -44mm, or -1.73" to the outboard side of centerline, so take 6.5" and subtract -1.73", which equals 8.23".

The commonly accepted BS range for 15" wheels is 3.5" to 4.5" depending mostly on the radius arms, where long travel aftermarket arms typically have more tire clearance than the stockers. Wheel diameter shouldn't have any impact on tire placement, so you're going to either need to run huge spacers and/or live with having no turning radius. The only way you could feasibly run such wide wheels/tires with such large backspacings would be to run full-width 1-ton axles...and even then you may need wheel spacers depending on the tires you choose to run.

The other interference issue tends to be the tie-rod ends, however with 20" wheels those shouldn't be an issue.

Now that just confused the hell out of me......so you think I need backspacers so I can run 20x12 wheels with a -44 offset??

 

[Apogee]

Okay, so I messed up between my first post and second post...negative offset pushes the mounting pad towards the inner lip, not the other way around, so I corrected my post above to reflect that.

You don't have to do the math, LOL. Let this calculator do the math for you: https://weldwheels.com/ccwheel/faqs/converter/

I think you will find that a 12" wide wheel with a -44mm offset (which equals 4.78" backspacing) is going to be all over the radius arms on a stock D44/9" EB setup. If you're running 1-tons or even full-width 1/2-ton stuff, now would be the time to share that information with the group.

It would also be helpful to know what tire you intend to run, since the tire cross-section may be larger than the wheel width if you're running something really wide...why else run a 12" wide wheel, right?

Tobin