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Thread: Wheel Spacer Question

  1. #1
    Senior Member BLK03SVT's Avatar
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    Question Wheel Spacer Question

    I currently have 1" wheel spacers on my 03 cobra from the previous owner. I am buying a set of FR500's- 18x10's, with the BFG Dr's, 295/35/18's.

    Question1- Do I need a spacer with the FR500's. I know that the 1" is too much, but I have heard of people running a 3/8" spacer with this wheel size/tire combo. Is it necessary?

    Question 2- I currently have a 1" spacer. Am I correct in assuming I will need to replace the studs that are currently installed for the 1" spacer if I go with a 3/8" spacer, or no spacer at all? If so, what studs do you guys recommend?

    Thanks for any input.

    2011 Shelby GT 500
    Black/Black/Satin Black Stripes, Electronics Pkg, FRPP/BMR Suspension/Borla-Ford Racing Exhaust
    488rwhp/463rwtq bone stock
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    2003 Mustang Cobra SVT Convertible- 302 Stroker & more- PSR Tuned, 2003 Mustang GT- Silver Coupe w/boltons
    1996 Mustang GT/SC- Paxton SC & Tons of Mods- SuperFord Mag Car, 1995 Mustang- Red w/boltons. 1968 Galaxie 500

  2. #2
    Senior Member
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    Anyone correct me if I'm wrong but I thought you only needed the spacer for the IRS bolt interference when using 17x10.5's. With the 18's you shouldn't need a spacer at all. I used the 3/8's one from Lethal Performance with my 17x10.5's. Mine was barely hitting so with the 18's you should have more clearance. Also, when I lowered my car the clearance got better.

    Would like some clarification because I want to go with some 18x9/18x10's in the future!
    2000 Lightning - 13.57@103
    2003 Cobra - 11.94@116

  3. #3
    Senior Member OH3MGSVT's Avatar
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    +1 You shouldn't need any spacer with the 18's

  4. #4
    Senior Member svtrichie's Avatar
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    You shouldn't need any spacers. I had 18x10 and 17x10.5 with 2953518/3153517 on my cobra lowered and know problems.

  5. #5
    Senior Member wickedcobra's Avatar
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    As far as needing to replace the studs..If they are hub centric meaning the spacer bolts to the axle then the wheel bolts to the spacer then no you do not need to replace the studs.

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