OllieDemon45
Well-Known Member
Even with the spring relocation?
I thought the 9" with the 30mm was too much offset in the front.
18" Wheel help
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I thought the 9" with the 30mm was too much offset in the front.
My rears are 5.95 bs and fit perfectly with my spring relocation kit. Fronts are 6.38” and fit perfectly. No spacers. I have a hat style front rotor setup.
Yup. There’s plenty of room in the back there but a 255/40/18 is supposed to be on a 8.5” wide wheel at the minimum. And you need more like a +8 for the offset. The difference between my 68-70 B body 8 3/4 and an A-body 8 3/4 with BBP axles is literally 30mm per side. So I run 18x10, +38’s with 295’s that are pretty close to dead center with the 1/2” offset. So if you’ve got the A body axle that’s 18x10 +8.
Going down to an 8” or 9” wheel gives you some more range with the offset, and so does a smaller tire, but if you wanted to keep the centerline the same you'd still be looking at a +8 for the offset.
18x9 +30 is exactly what I run in the front with a 275/35/18. My wheels are actually +35 but my 13” brakes add about +5 to the track width so with 73+ Mopar brakes the +30 would put the wheel in the same spot.
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OllieDemon45
Well-Known Member
I would much rather have a 9" wheel front, and especially the rear so i have the option for a wider tire if possible.
My parts showed up today, so hopefully i can start this project soon.
My parts showed up today, so hopefully i can start this project soon.
The 255/40 I run, RT-660 is actually ideal on a 9.5 to get all the tread. I wouldn’t run this on a rim narrower than 9”.
Yeah with a Demon especially I’d be looking for at least 9’s or even 9.5’s.
9.5’s would be a good set up to run “square”, you could run 275’s on all 4 corners with 9.5’s.
The issue becomes you’ll need a wheel that has a +25 to +35 in the front, and more like a +8 to +15 in the rear. But you could definitely run a stagger, there are a few wheels out there that have 18x9 or 18x9.5’s with a +30 or +35 and then also an 18x10 with a +10 to 15 for a rear.
OllieDemon45
Well-Known Member
The wheels should fit. That's a staggered set up with an 8.5 up front and 9.5 in the back, which is fine, but in the front you'd be limited to a 255/40/18. Not sure what tires you want to run, but that wheel also comes in a 18x9.5 +30, which would also fit on the front and allow for 275's.
OllieDemon45
Well-Known Member
Not sure if I want to go that wide of tire up front.
Is the bore size good at 72.6?
Your prerogative, the 18x8.5's should work with a +25 offset and anything up to a 255 tire, a 245 on that wheel would be a pretty easy fit.
The hub bore technically should be good, but it will depend on the design of the rim and what the actual wheel cap diameter is. The Mopar hub diameter on 73+ brakes is ~2.7", so it's less than 70mm even being a little generous with tolerances. The problem is that not all wheels maintain that hub bore straight through to the cap.
Like my Enkei RPF1's, they list a 73.1mm hub bore which is plenty. But, they taper down to a 65mm cap. And because the mopar hub has to go all the way through the RPF1 wheel, well, I needed to have the front wheels machined so they were 73.1 all the way through. So, you could see if you can figure out the wheel cap diameter, but even then it will depend on the thickness of the face of the wheel at the mounting surface. The RPF1's are very thin there, so, the hub has to go through the wheel. Some wheels are much thicker there, so the hub doesn't actually pass through to the outside of the wheel. Just depends on the wheel construction, and even having looked at a lot of wheels it's hard to say without having seen them in person. Even with the RPF's and knowing the cap diameter is 65mm, you have to see the actual rim you want to use to know that the hub is going to protrude all the way to the outside.
OllieDemon45
Well-Known Member
You think these would also fit my Demon without any front fender work? Stock A-body Axle with drums but will have the 1/2" spring relocation.
I know I've said it before, but I love the stance and look of your Dart!
The front has been upgraded to the 73+ disc conversion and QA1 tube upper control arms.
The demon and dart have the same fenders. I have a wider track than you, due to the hat style rotor that goes over the hub, not like the stock style one piece rotors.
The 6.38" backspace with the stock 73+ disks may be a little bit much. With the aftermarket disks Peter and I run the track is about 5/16 per side wider.
Without the added track width you may end up rubbing the frame at full steering lock, but it's hard to say because the steering stops on the lower ball joints aren't the same from one manufacturer to another. So the steering angle changes depending on the steering stops and one car may clear and the next might stop against the frame before the stop. I measured a bunch of different lower ball joints I had at one point, different brands, ages, etc. and the steering stop heights were all different.
Of course I can't help much anymore beyond that, the QA1 LCAs I run now don't touch the steering stops on the lower ball joints anyway.
Nobody makes the 6.38” bs wheel anymore. It’s 5.95 or 6.125”. Otherwise, it’s custom.
Huh?
There’s tons of 18x9’s with a +35 offset, which is the same as a 6.38” backspace.
They may not make your current wheel in that size anymore, but 18x9 +35 is a pretty common size.
DionR
Well-Known Member
I have a set of Forgestar 18x9 +35mm from American Muscle. Pretty pleased with them, but I haven't actually mounted them yet.
Forgestar Mustang F14 Gloss Black Wheel; 18x9; 35mm Offset F15189065P35 (10-14 Mustang) - Free Shipping
Forgestar Mustang F14 Gloss Black Wheel; 18x9; 35mm Offset F15189065P35 (10-14 Mustang) - Free Shipping
I meant the wheel I have, relax.
OllieDemon45
Well-Known Member
TS-V | Enkei Wheels
So I've finally decided these are the ones, lol.
I'm thinking i'll go with 18x8.5 +25 for the front
and 18x9.5 +15 for the rears.
Would anyone advise other sizes?
So I've finally decided these are the ones, lol.
I'm thinking i'll go with 18x8.5 +25 for the front
and 18x9.5 +15 for the rears.
Would anyone advise other sizes?
OllieDemon45
Well-Known Member
What size spacer would be needed in the rear to run a 9" rim with +30.
Was wondering if it's possible to run this size front and rear but with a 245 or 255 in front and 275 rear.
I don't mind if the front or rear has more "dish" look that the other.
8.75 Housing, BBP, will have 1/2" spring offset.
I have been having issues with my right eye "losing vision" so haven't been able to do much the last month. Lots of Dr. Appts. but i'm not going to stop the project for now, i've been waiting way too long as it is.
Just making sure i cover all bases before pulling the trigger.
Sorry for being a pain and asking so many questions.
Was wondering if it's possible to run this size front and rear but with a 245 or 255 in front and 275 rear.
I don't mind if the front or rear has more "dish" look that the other.
8.75 Housing, BBP, will have 1/2" spring offset.
I have been having issues with my right eye "losing vision" so haven't been able to do much the last month. Lots of Dr. Appts. but i'm not going to stop the project for now, i've been waiting way too long as it is.
Just making sure i cover all bases before pulling the trigger.
Sorry for being a pain and asking so many questions.
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michiganpat
Well-Known Member
I've got a spreadsheet based on dimensions I took off of my duster that I can plug different backspace/offsets and tire widths. do you know the actual drum-face-to-drum face axle width?
it looks like for a +30mm (1.18") offset rim, a wheel mount face to wheel mount face measurement of 58.5" (stock width for a 93-09? ford Ranger, and you can find ranger 8.8" axles with 3.55, 3.73, and 4.10's with limited slip fairly easily and cheaply) will just about perfectly center the tire L-R in the wheelwell, leaving about 3/4" inboard and outboard clearance. of course, your mileage may vary.
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OllieDemon45
Well-Known Member
OllieDemon45
Well-Known Member
How much of a spacer would i need in the rear @72bluNblu ?
I found another style that is a 9" wide and a +24. But i like the AMR wheels better.
Unfortunately you’d need a pretty substantial spacer, I’d say it would have to be 10mm for sure with the A body with 8 3/4.
OllieDemon45
Well-Known Member
I figured as much. the springs will be moved in the 1/2" but didn't figure that would be enough.
Yeah the 10mm spacer would pretty much give you the same clearance to the springs I had when I was running my 295’s with drums, which wasn’t very much at all but didn’t rub.
Personally I don’t like running a plain spacer that’s more than a 1/4” thick, but there are definitely 10 and 12mm spacers available. The narrowest spacer/adaptors that have their own set of lugs are 20mm, and most are 25. So the 18x9 +30 puts you in a spot where you need a thick plain spacer.
As @michiganpat said, it would be just about perfect for an 8.8”. Would also be pretty close for a 65-67 B body rear.
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