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What years of rear axels will fit on a box?

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    #1

    What years of rear axels will fit on a box?

    I was up at a pull a part that's in Louisville ky and they had about 12 or so P71 Vic's all were 99 and newer. It got me thinking about buying the rear axel and sway bar but the mounting brackets and control arms look different than my 83. So what years would be a direct bolt in swap? The only reason for the possible swap was gearing and possibly adding rear disc brakes. But for anyone around Louisville ky area they have a lot of good parts still on the cars there, it looked like a local police department had scrapped part of the fleet plenty to choose from at pull a part.


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    #2
    up to 95 will bolt into a box. 92-95 get you the rear disc and can be modified to use the later vented disc hardware. Once the watts link comes into play, it doesn't bolt in any more. There is some brake line modifications to be done, but other than that, it's a direct swap.

    Only two things are infinite, the universe and human stupidity, and I'm not sure about the former. -- Albert Einstein
    rides: 93 Crown Vic LX (The Red Velvet Cake), 2000 Crown Vic base model (Sandy), 2003 Expedition (the vacation beast)

    Originally posted by gadget73
    ... and it should all work like magic and unicorns and stuff.

    Originally posted by dmccaig
    Overhead, some poor bastards are flying in airplanes.

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      #3
      Thanks for the info. I will to have to check around and keep an eye out for a police unit that I can snag the rear axel/brakes/and sway bar from off anything 95 and older. Idk about other areas but here in central ky anything 98 and older is hard to get a hold of. But it was a nice find to bad the cars were all too new


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        #4
        I thin 1997 is actually the last year for a direct swap. A quick eyeball under there will tell. If it looks to mount how yours does, it fits. if it looks totally different, it won't go.
        86 Lincoln Town Car (Galactica).
        5.0 HO, CompCams XE258,Scorpion 1.72 roller rockers, 3.55 K code rear, tow package, BHPerformance ported E7 heads, Tmoss Explorer intake, 65mm throttle body, Hedman 1 5/8" headers, 2.5" dual exhaust, ASP underdrive pulley

        91 Lincoln Mark VII LSC grandpa spec white and cranberry

        1984 Lincoln Continental TurboDiesel - rolls coal

        Originally posted by phayzer5
        I drive a Lincoln. I can't be bothered to shift like the peasants and rabble rousers

        Comment

          #5
          Anything up to and including 97 is a direct swap axle wise.
          2020 F250 - 7.3 4x4 CCSB STX 3.55's - BAKFlip MX4
          2005 Grand Marquis GS - Marauder sway bars, Marauder exhaust, KYB's
          2003 Marauder - Trilogy # 8, JLT, kooks, 2.5" exhaust, 4.10's/31 spline, widened rear's, metco's, addco's, ridetech's 415hp/381tq
          1987 Colony Park - 03+ frame swap, blown Gen II Coyote, 6R80, ridetechs, stainless works, absolute money pit. WIP

          Comment

            #6
            I never can remember for sure if it's 95 or 97...

            up to 97 it is then.

            Only two things are infinite, the universe and human stupidity, and I'm not sure about the former. -- Albert Einstein
            rides: 93 Crown Vic LX (The Red Velvet Cake), 2000 Crown Vic base model (Sandy), 2003 Expedition (the vacation beast)

            Originally posted by gadget73
            ... and it should all work like magic and unicorns and stuff.

            Originally posted by dmccaig
            Overhead, some poor bastards are flying in airplanes.

            Comment

              #7
              Axles get wider aero boxes and beyound drum to drum/disc to disc mtd faces. Some cases with other than factory wheels different spacers or different set of wheels are required with wide tires one might have or want to install
              Scars are tatoos of the fearless

              Comment

                #8
                the aero axles with the stock rotors will match up with the front axle track width. The box axles are narrow by comparison... so it tend to look better anyhow. This also makes it so you only need one size spacer for wheels with different offsets instead of thicker spacers in the rear.

                Only two things are infinite, the universe and human stupidity, and I'm not sure about the former. -- Albert Einstein
                rides: 93 Crown Vic LX (The Red Velvet Cake), 2000 Crown Vic base model (Sandy), 2003 Expedition (the vacation beast)

                Originally posted by gadget73
                ... and it should all work like magic and unicorns and stuff.

                Originally posted by dmccaig
                Overhead, some poor bastards are flying in airplanes.

                Comment

                  #9
                  With my 11.5" wide wheels and no spacers an areo box rear would require new wheels which wasnt in the game. When I MEASURED THE FRONT TRACK WIDTH OF MY 87 IT WAS THE SAME AS THE REAR.
                  Scars are tatoos of the fearless

                  Comment

                    #10
                    interesting. My 88 is distinctly narrower in the rear by 2-3 inches.

                    Only two things are infinite, the universe and human stupidity, and I'm not sure about the former. -- Albert Einstein
                    rides: 93 Crown Vic LX (The Red Velvet Cake), 2000 Crown Vic base model (Sandy), 2003 Expedition (the vacation beast)

                    Originally posted by gadget73
                    ... and it should all work like magic and unicorns and stuff.

                    Originally posted by dmccaig
                    Overhead, some poor bastards are flying in airplanes.

                    Comment

                      #11
                      When I do the swap I would be getting new wheels. I'm going to see if the local rim shop can get Coys wheels. I'm looking into the C-5 style with grey painted spokes probably 18s


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                      Comment

                        #12
                        Originally posted by sly View Post
                        interesting. My 88 is distinctly narrower in the rear by 2-3 inches.
                        Might have it written down somewere. Checked the big brake on a 2001 purchased to do my big brake swap someday it was the same width as the front of my 87. did write down the 87, aero box and 2001 rears were all different getting wider think the 2001 were like 73 72 inches wide close to 10" wider than a 87.
                        Scars are tatoos of the fearless

                        Comment

                          #13
                          79-89 Are the shortest
                          90-97 Are wider
                          98-02 Are wider then the 90-97
                          03+ Are wider then the 98-02 to match the new front suspension offset
                          2020 F250 - 7.3 4x4 CCSB STX 3.55's - BAKFlip MX4
                          2005 Grand Marquis GS - Marauder sway bars, Marauder exhaust, KYB's
                          2003 Marauder - Trilogy # 8, JLT, kooks, 2.5" exhaust, 4.10's/31 spline, widened rear's, metco's, addco's, ridetech's 415hp/381tq
                          1987 Colony Park - 03+ frame swap, blown Gen II Coyote, 6R80, ridetechs, stainless works, absolute money pit. WIP

                          Comment

                            #14
                            98+ don't fit under a box anyway unless you make a lot of changes to the mounts. No way its 10" wider though.
                            86 Lincoln Town Car (Galactica).
                            5.0 HO, CompCams XE258,Scorpion 1.72 roller rockers, 3.55 K code rear, tow package, BHPerformance ported E7 heads, Tmoss Explorer intake, 65mm throttle body, Hedman 1 5/8" headers, 2.5" dual exhaust, ASP underdrive pulley

                            91 Lincoln Mark VII LSC grandpa spec white and cranberry

                            1984 Lincoln Continental TurboDiesel - rolls coal

                            Originally posted by phayzer5
                            I drive a Lincoln. I can't be bothered to shift like the peasants and rabble rousers

                            Comment

                              #15
                              Ill look around for my notes. I usd a giant set of calipers out of 2 carpenters T squares and some zip ties to take the measurements. The wider rear in the 03s maybe started before then had to do with the rear control arms ending up outside the frame.
                              Measured the 89-02 front and it came out the same as my 87. Wanted to be sure it didnt screw with my 10" wide rin=ms in the front of creamy. I have an 03 front suspension and crossmember in my back back room dont remember if I EVER MEASURED ONE OF THEM AT THE JUNK YARD WERE THEY HAD A LOT OF COP CARS.
                              Scars are tatoos of the fearless

                              Comment

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