Crown Vic FRONT 12 inch disc brake conversion

Discussion in 'General Maverick/Comet' started by skipsgrabber, May 31, 2017.

  1. skipsgrabber

    skipsgrabber Should've had wrenches instead of hands

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    Thought I would share this with y'all folks. I worked at a garage a number of years (ago),and seen a lot of brakes. The ones that I saw that took the most beating,were a small town police fleet of Crown Vics. These cars took a beating daily,and had a real good braking system. 12" rotors with dual piston calipers. The parts are easy to get,and I'm sure they'll be around awhile. I know about the rear conversion,but decided to fit a set of front rotors and calipers on my 72... There was much fab work to be done,and after I got it all sorted out,here's what I came up with... mav brakes 1.jpg How to get a rotor on this hub? Remove drum,Big ol' hammer to remove studs and drums... mav brakes 2.jpg Install rotor. Coincidentally,the shoulders on the studs fit the rotor holes like they were made for them. Call it luck.:huh: Now for the tough part what to do with the calipers? mav brakes 3.jpg After several failed attempts with pieces of wood and scrap steel,I came up with this made of 1/4" steel plate. Mocked everything together on the rotor,and found a spatial issue, so found some 1/8" steel strap,and cut into squares,and drilled. mav brakes 4.jpg Not really fond of the first idea of washers. So welded the strap into place,using bolts to center them. mav brakes 7.jpg A little clean up,more mocking up,and arrived at this... mav brakes 14.jpg mav brakes 9.jpg mav brakes 10.jpg Now i get to bolt it together,had to shorten the original caliper bolts so they didn't hit the back of the rotor. mav brakes 11.jpg I originally had them in front of the spindles,but didn't like the looks of them in front,so by flipping the brackets around from side to side,they wound up behind the spindle. I'm using 17" wheels,so i had room for calipers,but not much. mav brakes 13.jpg I used 79 cutlass brake hoses,because the CV calipers take banjo bolts,and I was putting new metal brake lines on,so I didn't wanna go with a metric bubble flare or a stack of adapters. The CV brake lines were 3/16",and the cutlass were too,so put new threaded fittings on the lines and flared them. Had to change the orientation of the metal lines as to have the hoses come out of the front,and done away with the crazy loop in the metal hose. Added some paint,and on to the next of the unending areas that need "love" on this car. mav brakes 15.jpg I got all this from a 2005 Crown Vic police car at pull-a-part,and the car had just got a brake job,pads,rotors,calipers, before it got slammed in the rear by what looked like a locomotive... The rotors still have some machine marks on them. I'm yet to try them,but betting they work better than drums... On a side note I didn't even find the mustang steve website until I was nearly done,and looking for adapters for a friends fox box,and there they were. Well,not for a Crown Vic brake conversion anyways. So they look similar,but no,not copies. Just good ol' "git er' done"... Hope this helps,or at least entertains... Now on to the cowl,and that ball of wires that's supposed to be a wiring harness ;)...
     
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  2. 71gold

    71gold Frank Cooper Supporting Member

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    interesting...:thumbs2:
     
  3. CaptainComet

    CaptainComet Large Member Supporting Member

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    That is pretty wild that the rotor goes right on the studs. It is a snug fit? It is looking pretty good from what I can see.

    Food for thought ... if you find the rotor still might need some more stability after you get this all together, there are hub-centric adapter rings for custom wheels that take up the room between the hub and wheel. You may find one that will fill up the open space between the rotor and hub.

    Wishing you the best of luck here. It really looks like you are onto something.
     
  4. skipsgrabber

    skipsgrabber Should've had wrenches instead of hands

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    The rotor fits snug to the studs,shocked me,not used to things working out that easy. Not sure about aftermarket studs,but I just put an old lug nut on the stock studs and smacked them with a hammer,got the drum off,fresh(er) lug nut and impact to pull them back in. What even got my surprise is the drum and the rotor are the same thickness. If i could get the rest of the car to go that easy would be great...
     
  5. skipsgrabber

    skipsgrabber Should've had wrenches instead of hands

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    I'd like to make an adjustment on this,the 79 cutlass hoses worked till I put it on the ground and it settled... Had to go with 73-77 cutlass hoses,added the extra length needed,and had to put the stock metal line configuration with the crazy "U" at the framerail... Works great,no binds,stops really really well...
     
  6. COMETIZED

    COMETIZED Member

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    NICE WORK SKIP !
    Cometized
    (Chip)
     
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  7. skipsgrabber

    skipsgrabber Should've had wrenches instead of hands

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    Thanks... Stop great,my first "panic" stop caused me to hug the steering wheel and check the seat belt... They're a dime a dozen in you pull yards,all sorts of pads and rotors available too... Just takes some elbow grease...
     

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