8.7 in" 2.47 ratio

Discussion in 'Parts Interchange' started by noodledood2, Jul 5, 2013.

  1. noodledood2

    noodledood2 Member

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    anybody know where i can track down parts/ gears for one of these? just got stuck with one from the granada i just picked up.:hmmm:
     
    noodledood2, Jul 5, 2013
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  2. 71gold

    71gold Frank Cooper Supporting Member

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    do you have any pics. of this thing?
     
    71gold, Jul 5, 2013
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  3. qpdcqp

    qpdcqp Davon

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    I never even heard of a 8.7
     
    qpdcqp, Jul 5, 2013
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  4. RMiller

    RMiller My name is Rick

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    He has pictures in this post.

    img_1799_original.jpg
     
    RMiller, Jul 6, 2013
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  5. Crazy Larry

    Crazy Larry Member

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    Well now you have. ;)
     
    Crazy Larry, Jul 6, 2013
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  6. qpdcqp

    qpdcqp Davon

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    Looks like a weird mopar rear end. I learn new stuff here all the time :coffee:
     
    qpdcqp, Jul 6, 2013
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  7. noodledood2

    noodledood2 Member

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    img_1798_original.jpg img_1799_original.jpg
    definitely Ford. tag id checks out with a ford rear end made for 3 or so years
     
    noodledood2, Jul 6, 2013
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  8. mav6977

    mav6977 Member

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    My 75 LTD had the 8.7 with a 3.07 rear gear. Owned that car from 1999 to 2003.
     
    mav6977, Jul 6, 2013
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  9. Krazy Comet

    Krazy Comet Tom

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    The 3.07 ratio rung a bell, I had a '70 Galaxie 500 with three on the tree that had same(and a '70 351 parts car with 2.75)... Sooo I checked the '71 shop manual and shur 'nuff it lists a 8.7" WER gear and at that time 2.75, 3.07 & 3.25 were avail...

    If new parts aren't avail, it's time to start checking '70s full size Fords for a better gear set... A chart in the '69 & '71 shop manuals shows this rear end was only avail in full size Fords and Meteors(Canadian), and is listed as NA in every other model... Usage would have no doubt been limited to the smaller engines(6cyl 289, 302, 351) as it's listed as a light duty unit... I also had a '67 Galaxie with 289 that had a rear cover rear in it but only had that one long enough to find it a new owner...

    No idea when it was installed in smaller models...
     
    Krazy Comet, Jul 6, 2013
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  10. scooper77515

    scooper77515 No current projects.

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    They shoulda just put their 9" rears in everything they ever sold, once they figured out how good the 9" rear was.

    Heck, even sent a post card out to everyone owning a Ford, saying "send in your rear, we will swap it with a 9" that fits" and be done with it. FOREVER!!!

    Wouldn't it be nice to find a Ford Festiva in a junk yard and be able to say "oooh, oooh, ooh! a SHORTENED 9" rear for my Maverick!!! Gonna make a drag car out of this thing!!!"
     
    scooper77515, Jul 6, 2013
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  11. mav1970

    mav1970 Bob Hatcher

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    I agree 100% but like everything else, no one can leave well enough alone. Leaving that 9 inch alone would have put a lot of rear axle designers out of work :cry:
     
    mav1970, Jul 6, 2013
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  12. Krazy Comet

    Krazy Comet Tom

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    As far as full size models, that's exactly what Ford did until at least sometime in the mid '60s(was introduced in '57)... Not much doubt they knew how good the 9" is, the 8.7" was a effort at saving $$$ and later for weight savings during the '70s...

    Some exploring of the '65-'72 Master Parts Calogue, proved my suspicion... The WER was introduced for the '67 full size models and used a 8.5" ring gear till at least into '69 when 8.7" gear sets are also listed with deepest being 3.25... At that time('75) part number for the 3.25 gears is C9AZ-4209-D
     
    Last edited: Jul 6, 2013
    Krazy Comet, Jul 6, 2013
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