Boig Motorsports

Visit our community sponsor

Thanks Thanks:  1
Likes Likes:  0
Results 1 to 16 of 16

Thread: 15" Wheels - Wilwood Brakes

  1. #1
    Senior Member
    Join Date
    Oct 2011
    Posts
    159
    Post Thanks / Like

    15" Wheels - Wilwood Brakes

    Will 15" wheels fit over Wilwood rear brakes w/emergency brake built-in the caliper?

    Walter

  2. #2
    Member 3dGuy's Avatar
    Join Date
    Feb 2015
    Location
    San Jose
    Posts
    98
    Post Thanks / Like
    16.5 barley fit. 17" recommended . If you look at wilwoods documentation you'll see what the clearances are.

    http://www.wilwood.com/BrakeKits/Bra...ear+End&whl=17
    My build site : www.ScootinThunder33.com

  3. #3
    Member 3dGuy's Avatar
    Join Date
    Feb 2015
    Location
    San Jose
    Posts
    98
    Post Thanks / Like
    My build site : www.ScootinThunder33.com

  4. #4
    Senior Member
    Join Date
    Apr 2013
    Location
    Albuquerque, NM
    Posts
    184
    Post Thanks / Like
    Kinda of depends on what rear differential. With the new IRS, you can go Wilwoods with 15" wheels, but not the parking brake. There just isn't room with the new spindle design to conveniently fit it in there. Several of us with this setup did either driveshaft mounting parking brake or hydraulic line lock. With old IRS and/or live axle, you can most likely fabricate the brackets to fit the spot caliper though.

    -TJ

  5. #5
    Senior Member Gordon Levy's Avatar
    Join Date
    Feb 2011
    Location
    Maricopa AZ
    Posts
    1,273
    Post Thanks / Like
    I have 4 piston kits front and rear that fit under 15" wheels.
    99/2000 NASA PSO Champion-2005 west coast FFR challenge series Champions
    Sponsor Tony B's 2007 ST2 National Championship
    2009 NASA TTC runner up-2010 NASA TTB runner up

  6. #6
    Senior Member AJT '33's Avatar
    Join Date
    Aug 2013
    Location
    Gatineau, Quebec, canada
    Posts
    738
    Post Thanks / Like
    FFR Recommends 17" minimum, I will be buying 18" to have a bit more clearance. I have an IRS on my 33.

  7. #7
    Member
    Join Date
    Dec 2016
    Posts
    46
    Post Thanks / Like
    Using 15" Bogart bead locks and the Wilwoods do not fit. Only company that has a disc brake for a 8.8 Ford with the C clip eliminator is Aerospace Components in Florida. Luckily they are the same price as the Wilwoods.

  8. #8
    Seasoned Citizen NAZ's Avatar
    Join Date
    Feb 2016
    Location
    "The High Country", beautiful Flagstaff, AZ
    Posts
    2,443
    Post Thanks / Like
    I have the optional 12.19" Wilwood brake kit on my 33HR with an 8.8 with Moser c-clip eliminators and I'm running 15" Weld Racing wheels with MT wrinkle wall drag slicks. To run 15" wheels in the rear I had to swap the caliper with the integral parking brake for a Wilwood DynaPro 4-piston caliper (Wilwood #120-8538) and use a manual line-lock for a parking brake (Speedway Motors #910-31301). To get around the c-clip eliminators I mounted the caliper brackets on the inside of the bearing flange and used aluminum spacers to get the caliper lined up with the rotor. It's a robust set-up and looks like a kit supplied by Wilwood.

    So Walter, if you want to run 15" wheels on the rear and still run a 12" brake it's possible using most of your Wilwood brake kit but there is no way those bulky calipers with the integral parking brake will fit inside a 15" wheel. And if you don't have c-clip eliminators it's even easier. The cost in brake system parts will be a bit over $400.

    Rear Brake.JPG
    Last edited by NAZ; 07-03-2018 at 09:35 AM. Reason: Added Photo

  9. #9
    Senior Member KDubU's Avatar
    Join Date
    May 2015
    Location
    Kennebunkport, ME
    Posts
    1,192
    Post Thanks / Like
    Quote Originally Posted by Gordon Levy View Post
    I have 4 piston kits front and rear that fit under 15" wheels.
    This is what I used on my 15’s.
    Kyle

    Complete Kit pickup 09/05/2015, 351w, QF680, 3.55, 3-Link, 15" Halibrands with MT's, Painted Viking blue with Wimbledon white stripes on 03/15/2017. Sold in 08/2018 and totally regret it.

  10. #10
    Administrator David Hodgkins's Avatar
    Join Date
    Feb 2011
    Location
    Corona del Mar, CA
    Posts
    6,057
    Post Thanks / Like
    Blog Entries
    7
    Quote Originally Posted by Gordon Levy View Post
    I have 4 piston kits front and rear that fit under 15" wheels.
    Quote Originally Posted by KDubU View Post
    This is what I used on my 15’s.
    Ditto on Gordon's kit for my Thunderbird IRS and Trigo Wheels:




    FFR 5369 Pin Drive, IRS, Trigos, Torsen, Wilwoods, FMS BOSS 302 "B" cam , Mass-flo. CA SB100 (SPCN) Registered
    Delivered 4/23/06. "Finished" 4/2012 (still not done!)


  11. #11
    Senior Member HVACMAN's Avatar
    Join Date
    May 2017
    Location
    Village Mills, Texas
    Posts
    674
    Post Thanks / Like
    I have the 11.65 inch Cobra single piston brakes on the rear with the integrated park brake . Does anyone know if these will work with 15 inch rims?IMG_0630.JPG
    33 Hot Rod (Gen 1) Stage 1 delivered on 4/27/2017, Stage 2 delivered on 9/21/2018
    LS3 495hp/480 lb. ft., 4L70E, Electric PS, Classic Auto Air, Lokar electronic sport shifter, 13 inch Wilwood front and 11.68 Cobra rear brakes, Ford 8.8 w 3.73 w 4 link, Billet Specialty Legend Series MAG wheels and Mickey Thompson
    Sportsman S/R 26x8x18 front and 29x18x20 rear tires.

  12. #12
    Senior Member HVACMAN's Avatar
    Join Date
    May 2017
    Location
    Village Mills, Texas
    Posts
    674
    Post Thanks / Like
    Quote Originally Posted by HVACMAN View Post
    I have the 11.65 inch Cobra single piston brakes on the rear with the integrated park brake . Does anyone know if these will work with 15 inch rims?IMG_0630.JPG
    I am looking for more wheel and tire options than going with 20's.
    33 Hot Rod (Gen 1) Stage 1 delivered on 4/27/2017, Stage 2 delivered on 9/21/2018
    LS3 495hp/480 lb. ft., 4L70E, Electric PS, Classic Auto Air, Lokar electronic sport shifter, 13 inch Wilwood front and 11.68 Cobra rear brakes, Ford 8.8 w 3.73 w 4 link, Billet Specialty Legend Series MAG wheels and Mickey Thompson
    Sportsman S/R 26x8x18 front and 29x18x20 rear tires.

  13. #13
    Senior Member CVOBill's Avatar
    Join Date
    Oct 2014
    Location
    Vermilion, OH
    Posts
    440
    Post Thanks / Like
    Andy, brakes clear the 15" wheels on my 33
    CVOBill
    MK2 #???? Delivered 11/2002, Finished and Titled 6/2003 5.0, T-5, 4-Link, Sold 3/2005
    Hot Rod #304 purchased 5/28/2017 from original owner Unassembled . Titled and plated 8/24/2017 Coyote,
    TKO, 3-Link, Heat, A/C, Electric Power Steering, Convertible top
    MK4 #9524 Picked up 1/18/19 306 Blueprint, T-5, 4-Link, Gas-N Pipes, Heater

  14. Thanks HVACMAN thanked for this post
  15. #14
    Senior Member
    Join Date
    Feb 2011
    Location
    Loveland, CO
    Posts
    462
    Post Thanks / Like
    CVOBill, I am working on the '35 pickup and would like 15" wheels also. I have the FFR supplies 11.65" rear brakes. I just heard from Tony and he indicated I would need 16" wheels to clear brakes, but you got yours to fit with 15's?

    He also indicated he used 5.5 backspacing all the way round, but I am having trouble finding these in 16" Torque Trust.

    With full fenders he said 235 fronts and 265 rears are needed to fit.

    Any helpful hints would be appreciated.

    Ralph

  16. #15
    Member
    Join Date
    Mar 2018
    Location
    Bradenton, Florida
    Posts
    58
    Post Thanks / Like
    I just purchased 17" bullit style wheels for my 33 with the Wilwood brake kits and guess what? They don't clear the rear brakes! The just barely rub the top of the caliper. I couldn't understand why until i realized the 10 1/2" wide rear wheel actually has a jog or hump on the inside of the barrel so essentially my 17" wheel is a 15" on the inside. I didn't see that coming, ouch. After doing some research I find out that a lot of wheel manufacturers have this jog in the barrel so beware of 17" wheels too, they are not all the same. I had read a lot about offsets and back spacing, bolt configurations, hub bore diameter etc until my head hurt, but never read anything about barrel diameters. The fronts are fine with about an inch of clearance because the barrel is flat.
    IMG_20181110_120340209_HDR.jpg

  17. #16
    Administrator David Hodgkins's Avatar
    Join Date
    Feb 2011
    Location
    Corona del Mar, CA
    Posts
    6,057
    Post Thanks / Like
    Blog Entries
    7
    Quote Originally Posted by dan's33 View Post
    I just purchased 17" bullit style wheels for my 33 with the Wilwood brake kits and guess what? They don't clear the rear brakes! The just barely rub the top of the caliper. I couldn't understand why until i realized the 10 1/2" wide rear wheel actually has a jog or hump on the inside of the barrel so essentially my 17" wheel is a 15" on the inside. I didn't see that coming, ouch. After doing some research I find out that a lot of wheel manufacturers have this jog in the barrel so beware of 17" wheels too, they are not all the same. I had read a lot about offsets and back spacing, bolt configurations, hub bore diameter etc until my head hurt, but never read anything about barrel diameters. The fronts are fine with about an inch of clearance because the barrel is flat.
    IMG_20181110_120340209_HDR.jpg
    Are they rubbing the top of the caliper itself or the spot parking brake?

    If it's the spot parking brake you may be able to mill down the top to fit if the interference isn't extreme...



    Last edited by David Hodgkins; 11-14-2018 at 10:53 AM.

    FFR 5369 Pin Drive, IRS, Trigos, Torsen, Wilwoods, FMS BOSS 302 "B" cam , Mass-flo. CA SB100 (SPCN) Registered
    Delivered 4/23/06. "Finished" 4/2012 (still not done!)


Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  

Replica Parts

Visit our community sponsor