Author Topic: E-Body Tire Combos  (Read 502355 times)

Offline crash340

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Re: E-Body Tire Combos
« Reply #810 on: December 21, 2014 - 03:10:08 pm »
All, the results of the question I asked in October about Boss 338 18 x 8 front and 18 x 9.5 rear.
Well We all have some stubborn in us, So I choose for the Combo all though "Ragtop" mention it would be to close.
It fitted, drivers side without any problems sufficient space. Passenger in the back unfortunate it was like an half inch to wide. Thank god I have airshocks in the back so by have them completely filled, that solved the immediate problem. We ended up modifying the lip in order to make sure I had sufficient clearance. And to have it equal we modified the lip on both side's.
See the pic's for the final result.
If you want to go with combo choose an different offset of 5.5 and not 5.
Setup ; Front : 18x8 245/45/18, Rear : 18x9.5 295/45/18
Thank all for the advice.

Thanks for this info, good to know, so just to confirm what your saying, you used a 5" BS but a 5.5" BS would have been better, correct?
Greg

73 Cuda
Brisbane, Australia




Offline azievinger

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Re: E-Body Tire Combos
« Reply #811 on: December 22, 2014 - 07:42:22 am »
Yes that is correct, BS of 5.5

Offline mcemond

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Re: E-Body Tire Combos
« Reply #812 on: January 08, 2015 - 02:00:34 pm »
I just realized this may be off topic. Feel free to remove it if so...

I have kind of a weird question regarding rallye wheels and trim rings as I attempt to resolve... "front spacing" (I've never heard the term before, but sounds appropriate  ;) ) to make wheels of different widths look identical.

The set up I am looking at (after much research here) is:

71 cuda, stock suspension - no rolled fenders or spring re-positioning
Wilwood front discs (15" minimum wheel, very minimal offset) stock drums on rear
OEM "Look" with today's wider footprint and a slight rake
Rear: 15 x 8 Rallye (backspace see question) with either 275/60-15 or 255/60-15 (still deciding if I want that extra .8" of tread width)
Front: 15 x 7 Rallye with 235/60-15

So what I was researching was, the wider the wheel, the more the trim ring begins to obscure the design holes in the rallye  assuming you are keeping the same back spacing on all 4 corners. Also, by staggering the widths you get a noticeable difference in this obscuring from front to back. That "OEM look" was achieved with pretty skinny wheels all at the same width. So I was thinking, what if you increased the back spacing on the (wider) rear set by an inch (or whatever) and use an equally measured spacer to compensate basically making the "front spacing" if there is such a term, equal on all 4 wheels. Then all 4 would theoretically look identical from the outside of the wheel. So far all I've found for back spacing in an 'off the rack' 8" wide rallye is wheels vintique with 4.5 or 4 5/8" for Mopar Factory. So for a wheels vintique i'd be looking at a 5.25" BS in an 8" wheel to match the front depth of their 7" wide wheel (4.25" BS) and so on. Apologies if I missed reference to other Rallye options earlier in this thread. Its a long thread and I tried to read most of it.

So if the above sounds correct I figured I had a couple options:
1. Custom wheels (I hear Stockton is no longer in business) but no thanks - sounds too expensive
2. Run all 4 corners on 15 x 7's
3. Live with the trim ring depth difference.
4. Go with an aluminum wheel that mimics the style.
5. Or go with a chromed rallye and paint the centers silver. Has anyone had a try at that? I wonder how it would look? This idea is growing on me.
6. OR... maybe someone has already dealt with this scenario here and has figured it out/ found wheels  (or maybe i'm just being too crazy about such an odd thing )

Anyway, thanks for reading.
Mike
« Last Edit: January 08, 2015 - 02:02:10 pm by mcemond »

Offline HP2

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Re: E-Body Tire Combos
« Reply #813 on: January 08, 2015 - 05:59:37 pm »
So for a wheels vintique i'd be looking at a 5.25" BS in an 8" wheel to match the front depth of their 7" wide wheel (4.25" BS) and so on.

This logic is correct. However, as you've noticed, you can't get them off the shelf in this configuration.

So if the above sounds correct I figured I had a couple options:
1. Custom wheels (I hear Stockton is no longer in business) but no thanks - sounds too expensive
2. Run all 4 corners on 15 x 7's
3. Live with the trim ring depth difference.
4. Go with an aluminum wheel that mimics the style.
5. Or go with a chromed rallye and paint the centers silver. Has anyone had a try at that? I wonder how it would look? This idea is growing on me.
6. OR... maybe someone has already dealt with this scenario here and has figured it out/ found wheels  (or maybe i'm just being too crazy about such an odd thing )


1. This is a possibility. There are a few places out there that could take a 15x8 4.5" backspace, cut the hub out and move it over that 1" to achieve the same front space as a 15x7.
2. Most economical answer.
3. I haven't seen a decent looking aluminum copy of the rallye wheel yet.
5. Not sure why you would do that unless you found chrome wheels with the exact spacing you want. I'd be worried about longevity of this approach, but it can be done.
6. We all have our quirks.

Offline Cudaragtop

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Re: E-Body Tire Combos
« Reply #814 on: January 11, 2015 - 12:35:35 am »
I think the Year One 17" aluminum Rallye wheels lookpretty decent...  :bigsmile:
- Randy D.
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Offline TDom

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Re: E-Body Tire Combos
« Reply #815 on: January 13, 2015 - 08:32:56 pm »
1971 Cuda, 8 3/4 rear. Front 15X7 Rallyes with BFG 235/60 R15. Rear is 275/50 R15 Nitto 555s on 15X8 Rallyes. Fits and looks good.

Offline dfrazz

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Re: E-Body Tire Combos
« Reply #816 on: January 14, 2015 - 09:38:31 am »
1971 Cuda, 8 3/4 rear. Front 15X7 Rallyes with BFG 235/60 R15. Rear is 275/50 R15 Nitto 555s on 15X8 Rallyes. Fits and looks good.

Please post a pic of this combo!   :useless:

Offline marc70challenger

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Re: E-Body Tire Combos
« Reply #817 on: February 02, 2015 - 01:23:38 am »
I've tried search ... and reading pages .... lol ... but ... want to verify something.

For 1970 Challenger (stock suspension and rear end config) I am looking for something in 17" that will fit with no issues nor any customization.

I want to try to retain stock look ... but better rubber ... so:  17" X 8" cast aluminum "Mopar Rallye" wheel YearOne (https://www.yearone.com/Product/challenger-cuda/mrw178slvs)

They state "Original fitment test done with 245/45-17 BF Goodrich G-Force T/A-KDW tires."

Can anyone help confirm these rim with tire specs above fit no problem?

I understand you need different lug nuts .. that's fine.

Or if anyone knows of any other brand that are Mopar Rallye style in 17in   ...  :thumbsup:

Thanks all ... awesome site for great info!

Trying to see if we can hit Carlisle this year as well ... never been ... would be awesome!
« Last Edit: February 02, 2015 - 10:26:37 am by marc70challenger »
1970 Challenger 340 Performance Package
1965 Barracuda - "The Pumpkin"  http://www.cuda-challenger.com/cc/index.php?topic=116471.0

Offline Cudaragtop

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Re: E-Body Tire Combos
« Reply #818 on: February 02, 2015 - 06:27:59 pm »
I have 245/45-17 front on 17x8, 275/40-17 rear on 17x9 They fit easily no problem.
- Randy D.
1 of 88 1970 340 4-Speed 'Cuda Convertibles
69 Barracuda Fastback Project Album https://goo.gl/photos/XjsAsx4LDo7psimU8
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Offline marc70challenger

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Re: E-Body Tire Combos
« Reply #819 on: February 02, 2015 - 08:13:38 pm »
I have 245/45-17 front on 17x8, 275/40-17 rear on 17x9 They fit easily no problem.

Pretty car!  Thanks!
1970 Challenger 340 Performance Package
1965 Barracuda - "The Pumpkin"  http://www.cuda-challenger.com/cc/index.php?topic=116471.0

Offline WildJones

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Re: E-Body Tire Combos
« Reply #820 on: February 12, 2015 - 01:56:16 am »
The tire sizes are possible with the stock suspension, but your offsets are wrong.

In the rear, to get an 18x10 with a 295/35/18 with the stock spring location and E-body 8 3/4 you're going to need an 18x10 with roughly 5 to 10mm of offset. A 295/35/18 will pretty much be shoehorned in there with the stock spring location, but it should fit if your rear axle is fairly well centered. If you're not opposed to rolling the quarter lip a little it shouldn't be a problem. Your other option would be to install a Dr. Diff 1" spring/shackle offset, in which case the 18x10's with a 35mm offset would fit just fine.

In the front a 245/40/18 on an 18x8.5 is pretty small compared to the space available (I run 275/40/17's on a 17x9 with 0 offset), but a 35mm offset will put you into the frame. If you wanted, you could run that set up with a 1" spacer adaptor. Otherwise, I'd be looking for something with an offset closer to 0mm. You could probably run as much as 15mm offset with an 18x8.5" and a 245/40/18, but it would look pretty goofy. You'd have a ton of room to the fender.

So, you can make those rims fit with those tires, but you'd need a 1" spring relocation in the back and a 1" spacer in the front.

This answer from a couple pages back helped answer my first question about an 18x10 in the rear with stock suspension, however, if I were crazy enough to try and stuff an 18x10 in the front (it can be done with perfect backspacing), where would you recommend starting off with offset/backspacing?

Also, what is everyone's opinion of wheel spacers? Seems like some folks are all for them, while others hate them. Custom wheels just arent in the cards for me right now.
Mike
Bay Area, CA
1970 Cuda

Offline Mopar Mitch

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Re: E-Body Tire Combos
« Reply #821 on: February 12, 2015 - 04:22:56 pm »
For a 10" rim you'll need a 5.5" bs, but it may become tight with leaf spring and tie-rod, etc.... but you could make it 5.25" (if someone would do that for you) and then consider flushing you lips.   I have 16x10 rims, f/r, with 5" bs, 275-45-16 tires (Hoosiers A6).... and the lips are flushed and slightly pulled... they appear stock... functional and awesome!
Autocross/road racers go in deeper... and come out harder!

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Offline 3D

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Re: E-Body Tire Combos
« Reply #822 on: March 05, 2015 - 09:23:05 pm »
Keith,

I have 18x9 with 5.5" of backspacing with a 275/35/18 on the front of my AlterKation equipped Cuda.  Even with the stock suspension for some reason my tires would always hit the fenders if I went over a 245 in the front, so I did have to cut my fenders some on the bottom front of the fender arch to make them clear.  You might not have the problem, but I would recommend you mock up your wheel and tire combo before final paint.

No issue with the tires rubbing the frame or anything especially given the crappy turning radius of the AlterKation!   :lol:



Travis
72 Cuda


Not sure if I missed it, but what size is the rear wheel tire combo?

Offline GCCUDA

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Re: E-Body Tire Combos
« Reply #823 on: March 12, 2015 - 09:46:14 pm »
Any one tried a 20 x 9 front ? 13 offset = 5.5 back spacing?

Offline turbo224

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Re: E-Body Tire Combos
« Reply #824 on: March 19, 2015 - 06:24:53 pm »
Okay wheel gurus, I have a question. The wheels I want for my cuda only come in an 18x9. Is it going to be possible to run 305/40 tires on the rear, or will the wheels be too narrow? Also, I would also like to know the answer from the post above mine.
« Last Edit: March 19, 2015 - 06:27:55 pm by turbo224 »
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