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CJ3A Disc Swap!

Discussion in 'Flat Fender Tech' started by Vhunter, Oct 31, 2006.

  1. Oct 31, 2006
    Vhunter

    Vhunter Member

    Redding, California
    Joined:
    Jun 26, 2005
    Messages:
    262
    I just got through looking at parts, and I don't see much difference in the rotors from a Ford F150 and the Jeep rotors for this swap. The diameters, thickness and height are real close. So, has anyone used the Ford rotors instead of the expensive 1 1/18 thick Jeep rotors for the disc. brake swap on an early CJ3A? This is using the Chevy Calipers and Caliper hangers. Are they really the same, as the price difference is a lot.
     
    Vhunter, Oct 31, 2006
    #1
  2. Oct 31, 2006
    jcarson

    jcarson Member

    illinios
    Joined:
    Sep 5, 2005
    Messages:
    86
    well i dont have any info on this but id like to see how you come out im gettting ready to go disc's on my m38a1,jared
     
    jcarson, Oct 31, 2006
    #2
  3. Oct 31, 2006
    w3srl

    w3srl All-around swell dude Staff Member

    Port Orange, FL
    Joined:
    Nov 6, 2002
    Messages:
    4,275
    I'd be interested in this also, but are the Ford discs that much cheaper? KRAGE has 'em for just under 50 bucks each...
     
    w3srl, Oct 31, 2006
    #3
  4. Oct 31, 2006
    Vhunter

    Vhunter Member

    Redding, California
    Joined:
    Jun 26, 2005
    Messages:
    262
    Here is my point: NAPA online

    1977 Ford F150 4x4 1977 Jeep CJ5
    Bolt Circle: 5.5 5.5
    Diameter: 11 23/32 11.750
    Thickness; 1.185 1.185
    Height: 2.704 2.80
    Part #: TS 4885611 UP 85667
    Price: $31.99 $96.49

    The cheapest price I could find for the Jeep rotors here in Houston Texas was $54.99 each. Does anyone know if they are in fact the same rotor? If so I am taking back the set I already purchased, hate to be cheap here but the difference will buy my brake hoses.
     
    Vhunter, Oct 31, 2006
    #4
  5. Oct 31, 2006
    w3srl

    w3srl All-around swell dude Staff Member

    Port Orange, FL
    Joined:
    Nov 6, 2002
    Messages:
    4,275
    Yeowww! For that price, I'd have to take them home and try it out. The only thing that makes me wonder is the height difference of .10 inches. You might need to change out the inner bearing race to make the caliper line up correctly, but then again you might get lucky.

    FWIW- I ran that same F-150 application on www.rockauto.com and they came up with a price of $13.49 per rotor. My kind of price! :D
     
    w3srl, Oct 31, 2006
    #5
  6. Nov 1, 2006
    Posimoto

    Posimoto Hopeless JEEP Addict

    Minden, Nevada
    Joined:
    Aug 7, 2003
    Messages:
    4,538
    If that thickness is correct, it's thicker than the Jeep rotors. The Chevy calipers may not fit over them. 1 1/8" = 1.125 How long do you think a set of $14 rotors will last? Ultimately, you get what you pay for. I, for one, am trying to keep "Made in China" from ever appearing on any part that's attached to my Jeep.
     
    Posimoto, Nov 1, 2006
    #6
  7. Nov 1, 2006
    runnamuck

    runnamuck look out!

    hickory, nc
    Joined:
    Nov 7, 2005
    Messages:
    223
    only by .060", thats only .030" a side. dia. alittle smaller to but not enough to matter. on dana 44s (same as dana 30 from the knuckle out) i use ford hubs/rotor and chevy/fsj calipers without any issues if i want 5 lug. so if they work on the the axle you are useing parts from then they should work. unless some knuckle interfence besides the caliper clearance.
     
    runnamuck, Nov 1, 2006
    #7
  8. Nov 1, 2006
    Daryl

    Daryl Sponsor

    Bonney Lake, WA
    Joined:
    May 25, 2006
    Messages:
    2,882
    Let us know how it turns out, I just put a set of jeep rotors on and had to remove some of the inside brake pad to gat the caliper on the driver's side(didn't want to shim out the bearing) It isn't like it is ever going to go through a set of brakes with 5.38 gears. So a little off maybe to much, but anything is possible if you get creative.
     
    Daryl, Nov 1, 2006
    #8
  9. Nov 2, 2006
    mortten

    mortten I can’t put my finger on it 2024 Sponsor 2023 Sponsor 2022 Sponsor

    Peninsula, Ohio
    Joined:
    Apr 17, 2006
    Messages:
    1,740
    Tellico 4x4 has the jeep rotors for $46.95 each. That's where I got mine.
     
    mortten, Nov 2, 2006
    #9
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