18" Wheel help
- Thread starter OllieDemon45
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The only way I'm doing that is if the other 5 studs have pointy colored lug nuts.Just need to double drill the hubs and add 5 more studs each.
DionR
Well-Known Member
Make sure they are 6" long or longer, too.
At the same time, the 4x4 guys are always talking about putting 8 lug axles under their trucks. A 10 lug setup would be the bomb.
OllieDemon45
Well-Known Member
Post your wheel and tire combos.
So i found this Demon and really like how it looks. It says it has disc fronts and a stock 8.75 with drums, same as mine.
Is 4.5 enough backspacing for the fronts? I would rather use an 8" front wheel,not a 7". The Rear shows 9.5 with 5.25 back space.
Looks like everything clears fine from the pics.
Thoughts? I thought i needed more backspacing in the front and or rear too.
So i found this Demon and really like how it looks. It says it has disc fronts and a stock 8.75 with drums, same as mine.
Is 4.5 enough backspacing for the fronts? I would rather use an 8" front wheel,not a 7". The Rear shows 9.5 with 5.25 back space.
Looks like everything clears fine from the pics.
Thoughts? I thought i needed more backspacing in the front and or rear too.
If you want to use a 8” wheel up front you need more than 4.5” of backspace if you want to actually use the rim width to run more tire. Realistically you need at least 5” of backspace on an 8” rim in the front to make running the 8” worthwhile vs a 7” wide rim. That Demon is only running a 225/45/17 front, so that’s only a 25” tall wheel and the specs are taken from a 7.5” wide measuring rim, so on a 7” rim the section will be a bit narrower than the spec.
In the back with stock spring locations the 5.25” backspace is a good set up for an 18x9.5”. You can’t run much more backspace than that without a spring offset of some kind.
I went back and looked at that summit wheel selection again, I’m not sure why the Summit page shows the 18x9.5” wheel with a backspace of 5.54” as an offset of +20mm. That backspace on a 9.5” wide wheel is a +7mm offset.
OllieDemon45
Well-Known Member
XXR 559 Flat Graphite Wheels 5x4.5 - 18x8.5 +20 - 559886696
These are an 8.5 wide wheel with a +20 offset so i think they should work front and rear.
Plus they kind of look like a pitchfork, lol
So I think they’ll work, in the front if you go past a 245 wide tire they’ll end up sticking out too far (farther than my 275’s).
In the back you’ll probably need a small spacer to clear the springs.
But for a compromise to run the same rim front and back that’s about as close as it gets.
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OllieDemon45
Well-Known Member
Would a 255-40 rear tire work? I was looking at the Nitto NT555g2 but they don't have a 255-40 for the rear.
I was thinking 245-40 for the front.
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plumkrazee70
Well-Known Member
What about @BergmanAutoCraft wheels on the dart on his home page? I've always like the look of those. Not sure what his his setup is tho.
A 255/40/18 should work fine, again, maybe a small spacer needed.
A 245/40/18 should work in the front, that would about the maximum for fender clearance with that set of rims
18x9s all around. 6.38BS front, 6.0” BS rear. 255/40s and 265/40s currently.
What brand/model?
Thank you
SVE Drify. I don’t think they still make them.
Will the Konigs fit a stock Mopar hub or do they need to be widened out?
So it looks like those Konigs have different hub bores depending on the width of the wheel. The 73.1mm bore will fir over the Mopar hub, but it depends on how thick the wheel is at the mount and how much the hub bore tapers to the wheel cap. The 71.5mm size will need to be opened up.
It’s hard to know even for the 73.1mm bore, that’s the same as my RPF1’s. They needed to be bored because they tapered to a 65mm cap and the wheel mounting area is thin so the hub has to protrude completely through the wheel. So it really depends on the construction of the individual wheel.
Hmmm... I'm in the same boat the the OP. Stock A-Body 8 3/4 with stock spring location, and stock front discs (actually changed over to 11.75"). I want to run 255/40/18 on the front and 275/40/18 on the back. Seems like my options are bore out some wheels or try to find some Mopar specific wheels with the correct offsets. Any other options (different front hubs, etc)?
There really aren’t any “Mopar specific” wheels in anything close to those sizes, just aftermarket wheels with generic center bores. As far as hubs, you won’t do much better for the factory spindles. The DoctorDiff aluminum hubs are basically copies of factory BBP hubs minus the rotors. Baer hubs are very similar. Wilwood hubs have even larger diameter hub snouts.
It’s very wheel specific too. I have Vision Legend 5’s on my Challenger in 17x9”, they have a larger hub bore but even if they had a 73.1mm bore (fairly standard for aftermarket wheels) they’d work fine because they’re quite thick at the mounting face, so the Mopar hub doesn’t protrude. But a lot of wheels are like my RPF’s and are thin there, so the hub has to protrude through the hub bore completely. And some wheels will allow that but then need different wheel caps to cover the hub.
This is a set of the Vision wheels in 18”, they appear to only offer an 18x8.5” in grey but have an 18x9.5” in black. But they offer multiple offsets, so you could run these in the front with a 255
Grey
Vision Wheel 142-8865GM32 Vision American Muscle 142 Legend 5 Series Machined Lip Gunmetal Wheels | Summit Racing
Black
Vision Wheel 142-8865GB20 Vision American Muscle 142 Legend 5 Series Machined Lip Gloss Black Wheels | Summit Racing
and then these in the back
Grey (would have to be a 255, as a 275 needs a 9” wheel in that size)
Vision Wheel 142-8865GM10 Vision American Muscle 142 Legend 5 Series Machined Lip Gunmetal Wheels | Summit Racing
black (would work with a 275 but would need a small spacer)
Vision Wheel 142-8965GB12 Vision American Muscle 142 Legend 5 Series Machined Lip Gloss Black Wheels | Summit Racing
The other thing is, you didn’t mention if you have a Duster/demon/dart sport/barracuda or a Dart/Scamp/valiant. If you don’t have a sport body car you won’t fit 275’s in the back without moving the springs, the Dart/Scamp/Valiants have 1” less room in the quarters.
It’s very wheel specific too. I have Vision Legend 5’s on my Challenger in 17x9”, they have a larger hub bore but even if they had a 73.1mm bore (fairly standard for aftermarket wheels) they’d work fine because they’re quite thick at the mounting face, so the Mopar hub doesn’t protrude. But a lot of wheels are like my RPF’s and are thin there, so the hub has to protrude through the hub bore completely. And some wheels will allow that but then need different wheel caps to cover the hub.
This is a set of the Vision wheels in 18”, they appear to only offer an 18x8.5” in grey but have an 18x9.5” in black. But they offer multiple offsets, so you could run these in the front with a 255
Grey
Vision Wheel 142-8865GM32 Vision American Muscle 142 Legend 5 Series Machined Lip Gunmetal Wheels | Summit Racing
Black
Vision Wheel 142-8865GB20 Vision American Muscle 142 Legend 5 Series Machined Lip Gloss Black Wheels | Summit Racing
and then these in the back
Grey (would have to be a 255, as a 275 needs a 9” wheel in that size)
Vision Wheel 142-8865GM10 Vision American Muscle 142 Legend 5 Series Machined Lip Gunmetal Wheels | Summit Racing
black (would work with a 275 but would need a small spacer)
Vision Wheel 142-8965GB12 Vision American Muscle 142 Legend 5 Series Machined Lip Gloss Black Wheels | Summit Racing
The other thing is, you didn’t mention if you have a Duster/demon/dart sport/barracuda or a Dart/Scamp/valiant. If you don’t have a sport body car you won’t fit 275’s in the back without moving the springs, the Dart/Scamp/Valiants have 1” less room in the quarters.
Its a 74 Dart Sport so there's a bit more room in the rear. I remember you mentioning something about 10" wide wheels working better with the A-body rear. Would that work with the stock spring location?
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