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Thread: 1978 Grand Marquis

  1. #261
    Member Grand1's Avatar
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    Thats the plan man...

    So being a complete virgin on axles, when doing a perfunctory inspection, on the inside of my axle tubes there seems to be jagged pieces of metal (on both sides) where the rubber part of the seal would rest? What is this...maybe just manufacturing imperfections? Doesn't look like it would impede ta seal.
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    Last edited by Grand1; 07-07-2021 at 05:46 PM.



    1978 Grand Marquis 460 2door "Blue Bomber"

    1987 LTD Crown Vic 351w aka the "MI Mountie"

    1989 Colony Park ....Marge still lives!

    1979 Marquis creamy goodness

  2. #262
    Wagon Addicted Tiggie's Avatar
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    The actual sealing part of the seal is closer to the center of the tubes, so you should be in good shape there as long as the seal can get in there straight.

    Awesome looking headers. Barges need love too.
    1990 Country Squire - weekend cruiser, next project
    1988 Crown Vic LTD Wagon - waiting in the wings

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  3. #263
    Member Grand1's Avatar
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    Luckily I had a freind that let me borrow his air bumper jacket, no way in hell the pig was gonna go in, without the extra hieght. Lube locker gasket gave me more problems then the pig was kinda wavey and didn't sit flat....hopefully the pig smashed it flat. Axle seals and 3.15 new bearings installed.

    Now when I spin both axle shafts, the yoke doesn't move....but when I move the yoke, the wheels spin. Is that because the car is jacked and the wheels aren't on the ground?

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    Last edited by Grand1; 07-15-2021 at 02:41 PM.



    1978 Grand Marquis 460 2door "Blue Bomber"

    1987 LTD Crown Vic 351w aka the "MI Mountie"

    1989 Colony Park ....Marge still lives!

    1979 Marquis creamy goodness

  4. #264
    Member Grand1's Avatar
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    So have been researching this and I still don't understand....so when I spin my the axle shaft the yoke doesn't move....but when I spin the yoke by hand, the axle shafts rotate. Any suggestions?



    1978 Grand Marquis 460 2door "Blue Bomber"

    1987 LTD Crown Vic 351w aka the "MI Mountie"

    1989 Colony Park ....Marge still lives!

    1979 Marquis creamy goodness

  5. #265
    GMN Regular Giraffe's Avatar
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    Quote Originally Posted by Grand1 View Post
    So have been researching this and I still don't understand....so when I spin my the axle shaft the yoke doesn't move....but when I spin the yoke by hand, the axle shafts rotate. Any suggestions?
    Sounds like typical open differential operation. Spinning one side at a time won't cause the other side or the yoke to spin on an open differential.
    óJohn

    1990 Mercury Grand Marquis LS (POTM March 2017 & May 2019)
    1995 Mustang SVT Cobra coupe (cream puff)
    1966 Mustang coupe (restoration in-progress)

  6. #266
    Member Grand1's Avatar
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    Thanks, just still learning alot about a rear end...thought it might be a planetary gear doing its thing.



    1978 Grand Marquis 460 2door "Blue Bomber"

    1987 LTD Crown Vic 351w aka the "MI Mountie"

    1989 Colony Park ....Marge still lives!

    1979 Marquis creamy goodness

  7. #267
    Member Grand1's Avatar
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    So looking up the brake conversion, yikes what a thing to do. My axle flanges are around 6.75 inchs and I have a 5x5 bolt pattern. So yes, I could get those machined down to the 6 1/4 inch and the center down to 2.73 inch needed for the hat for this bracket kit....another problem is the rotor. Most brake conversion kits want a 11.25 inch rotor with a 5◊4.5 bolt pattern. I can find a 11.5 inch 5x5 rotor, and then have it machined down to 11.25?

    Really thinking about putting drums back on it...but didnt have the backing plate/ gasket installed back on the axle shafts
    Last edited by Grand1; 07-16-2021 at 08:19 PM.



    1978 Grand Marquis 460 2door "Blue Bomber"

    1987 LTD Crown Vic 351w aka the "MI Mountie"

    1989 Colony Park ....Marge still lives!

    1979 Marquis creamy goodness

  8. #268
    GMN Regular DerekTheGreat's Avatar
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    Drums are just peachy. I think your car has big ass ole drums on it too, so when done and done right, they should stop the thing well with a good pedal feel. Drums just get a bad rap due to being out of adjustment or some other small deal. You're not autocrossing it so fade isn't going to be an issue.
    1985 LTD Crown Victoria - SOLD
    1988 Town Car Signature - Current Party Barge

  9. #269
    Member Grand1's Avatar
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    Well, took your advice Derek. Drums it is. New rear brake hose....was able to flare line without redoing the whole line. New brake lines to each drum. New KYB monotubes. New Ujoint...it is a 1330 big bearing the two sets of bearings, they dont have the same diameter. Axle fluid in. About to fire it up.

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    Last edited by Grand1; 08-27-2021 at 02:15 PM.



    1978 Grand Marquis 460 2door "Blue Bomber"

    1987 LTD Crown Vic 351w aka the "MI Mountie"

    1989 Colony Park ....Marge still lives!

    1979 Marquis creamy goodness

  10. #270
    Member Grand1's Avatar
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    BTW, this tool on Amazon saved my ass for flaring an existing line....highly recommended and its like $40.
    Attachment 56891



    1978 Grand Marquis 460 2door "Blue Bomber"

    1987 LTD Crown Vic 351w aka the "MI Mountie"

    1989 Colony Park ....Marge still lives!

    1979 Marquis creamy goodness

  11. #271
    The Brown Blob 87gtVIC's Avatar
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    I picked one up a few years back when I seen it pop up on eastwoods site. Glad I never had to use it yet. If only having the tools for the job really meant you would never have to do the job......
    ~David~

    My 1987 Crown Victoria Coupe: The Brown Blob
    My 2004 Mercedes Benz E320:The Benz

    Quote Originally Posted by DerekTheGreat View Post
    But, that's just coming from me, this site's biggest pessimist. Best of luck

  12. #272
    Member Grand1's Avatar
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    I used it for the newlines as well. Definely practiced to dial it in. Niccopper def needs less pressure than standard.



    1978 Grand Marquis 460 2door "Blue Bomber"

    1987 LTD Crown Vic 351w aka the "MI Mountie"

    1989 Colony Park ....Marge still lives!

    1979 Marquis creamy goodness

  13. #273
    GMN Regular DerekTheGreat's Avatar
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    Never did brakes on one of those but that looks right- hope you hooked up the parking brake cable before putting it all together.

    Nicopp kinks much easier though. Oops. Said that a lot my first few times working with it.
    1985 LTD Crown Victoria - SOLD
    1988 Town Car Signature - Current Party Barge

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