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  1. #1

    Default Question on 85 wheel sizing, spindle change needed?

    So I have a couple of '85s. I'm trying to install the wheels below on them:


    https://www.americanmuscle.com/silver-sc-style-wheels-7993.html


    I tried them on one of my cars, granted it's a bit more of a project car, but it was rubbing when turning. I see a note about needing 87-93 front spindles, is that required to make them fit?


    I see a lot of pictures of these wheels on four eyed Mustangs, for example:





    What do I need to do to make these fit?

  2. #2
    FEP Member Patrick Olsen's Avatar
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    Rubbing where? Was it the wheel that was rubbing, or the tire that was rubbing?
    '89 GT convertible - not a four-eye
    '82 Zephyr Z7 - future track car

  3. #3

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    Quote Originally Posted by Patrick Olsen View Post
    Rubbing where? Was it the wheel that was rubbing, or the tire that was rubbing?
    The tire was rubbing. Would 87-93 spindles help with clearance or are those only for brake and 5 lug upgrades?

  4. #4
    FEP Member Patrick Olsen's Avatar
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    Again, rubbing where? Nobody can tell you what changes are going to help if we don't know what the problem is.

    And since it's the tire that's rubbing, what size tire?

  5. #5

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    Quote Originally Posted by Patrick Olsen View Post
    Again, rubbing where? Nobody can tell you what changes are going to help if we don't know what the problem is.

    And since it's the tire that's rubbing, what size tire?
    Sorry, it's extremely close, pretty much rubbing against the wheel well liner when the tires are cranked to the far left or right. Maybe this is fine? Here are some pictures: https://imgur.com/a/JQxt6lY

    Tires are 245/45-17 Mickey Thompsons.

    Note: In the pictures I still have the OEM back wheels on.

  6. #6

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    A shorter tire helps with rubbing on the fender extensions

    255/40/17’s

    Another help — double up on camber bolts so you can completely max out caster. Lay the struts all the way back towards the windshield using caster/camber plates.

    im going to suggest trying to keep your track width as wide as you can while playing with this

    the first thing to try is

    Adjust your camber by making the bottom camber bolt push the wheel as far out as possible. Now adjust the top camber bolt to get your negative camber where you want it.

    now set your toe and go lock to lock

    if that doesn’t get it try maxing out the upper camber bolt as far “in” as possible. Max out what it can give for negative camber. Now adjust the bottom bolt to get your camber where you want it.

    you can play with all sorts of stuff with both upper and lower spindle bolts being camber bolts. You can turn your wheels lock to lock and play with it until the swirl it makes on the tire is centered on the rubber, etc...

    Have fun with it. It’s time well spent. These cars drive SO good with the right frontend settings

  7. #7
    FEP Member Patrick Olsen's Avatar
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    Quote Originally Posted by PirateToast View Post
    Sorry, it's extremely close, pretty much rubbing against the wheel well liner when the tires are cranked to the far left or right. Maybe this is fine? Here are some pictures: https://imgur.com/a/JQxt6lY
    That looks pretty minor, I probably wouldn't bother with it at all.

  8. #8
    Moderator wraithracing's Avatar
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    Rubbing looks pretty minor to me also. The other option is to install some additional rack limiters to prevent the wheels from turning that far and prevent the rubbing.

    https://lmr.com/item/LRS-3504HDW/79-...Limiter-6-Pack
    ​Trey

    "I Don't build it hoping for your approval! I built it because it meets mine!"

    "I've spent most of my money on Mustangs, racing, and women... the rest I just wasted."

    Mustangs Past: Too many to remember!
    Current Mustangs:
    1969 Mach 1
    1979 Pace Car now 5.0/5 speed
    1982 GT Ongoing RestoModification
    1984 SVO Awaiting Restoration
    1986 GT Wrecked by PO, but still want to save!

    Current Capris:
    1981 Capri Roller
    1981 Capri Black Magic Roller Basket Case
    1982 Capri RS 5.0/4spd T-top Full Restoration Underway
    1984 Capri RS T-top Roller
    1983-84 Gloy Racing Trans Am/IMSA Body Parts

  9. #9

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    Worth mentioning the difference between the 86 GT 2.5 turn lock to lock rack and the 93 2.25 is not the steering ratio. It’s range of motion. That was the answer to rubbing with the 16” wheels and tires.

  10. #10
    Moderator wraithracing's Avatar
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    Quote Originally Posted by erratic50 View Post
    Worth mentioning the difference between the 86 GT 2.5 turn lock to lock rack and the 93 2.25 is not the steering ratio. Its range of motion. That was the answer to rubbing with the 16 wheels and tires.
    I believe the difference is the rack limiters installed in the steering racks. The ratio is the same and in my experience the housings have the same casting numbers. I don't believe there are any significant differences internally between the R&P. I personally have noticed more rack limiters on the later model racks when I have repaired/replaced them. Not sure if that was what you are alluding to or not.
    Last edited by wraithracing; 09-23-2018 at 11:44 PM. Reason: Spelling
    ​Trey

    "I Don't build it hoping for your approval! I built it because it meets mine!"

    "I've spent most of my money on Mustangs, racing, and women... the rest I just wasted."

    Mustangs Past: Too many to remember!
    Current Mustangs:
    1969 Mach 1
    1979 Pace Car now 5.0/5 speed
    1982 GT Ongoing RestoModification
    1984 SVO Awaiting Restoration
    1986 GT Wrecked by PO, but still want to save!

    Current Capris:
    1981 Capri Roller
    1981 Capri Black Magic Roller Basket Case
    1982 Capri RS 5.0/4spd T-top Full Restoration Underway
    1984 Capri RS T-top Roller
    1983-84 Gloy Racing Trans Am/IMSA Body Parts

  11. #11

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    That is EXACTLY what I was saying, yes.

  12. #12

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    Thanks for the feedback folks. Ive taken a few drives and it doesnt seem to be an issue. Im just going to take it easy on sharp turns and look into a limiter.

  13. #13
    Moderator wraithracing's Avatar
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    Quote Originally Posted by erratic50 View Post
    That is EXACTLY what I was saying, yes.
    Cool! So we are on the same page then! Wait! What book are we reading?
    ​Trey

    "I Don't build it hoping for your approval! I built it because it meets mine!"

    "I've spent most of my money on Mustangs, racing, and women... the rest I just wasted."

    Mustangs Past: Too many to remember!
    Current Mustangs:
    1969 Mach 1
    1979 Pace Car now 5.0/5 speed
    1982 GT Ongoing RestoModification
    1984 SVO Awaiting Restoration
    1986 GT Wrecked by PO, but still want to save!

    Current Capris:
    1981 Capri Roller
    1981 Capri Black Magic Roller Basket Case
    1982 Capri RS 5.0/4spd T-top Full Restoration Underway
    1984 Capri RS T-top Roller
    1983-84 Gloy Racing Trans Am/IMSA Body Parts

  14. #14

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    Ramblings from guys who went to the school of hard knocks..... Volume Ford four eyed fox

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