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  1. #1
    Join Date
    Jan 2013
    Posts
    12

    Default b.o.p. 12 bolt gears

    hello all. I have a set of 3.23 gears for sale..good condition,,,no unusual wear ,,only removed to go to a lower ratio,,,
    asking 85.00 plus shipping from 75792,,,reply here or email me,
    marknascar3@yahoo.com

    thanks

  2. #2
    Join Date
    Feb 2002
    Location
    North Carolina
    Posts
    23,946

    Default Re: b.o.p. 12 bolt gears

    12 bolt chev or 8.2", 10 Bolt 65-67 BOP, 9 3/8" BuicK?
    What year and model auto was the donor?

    Winona, Texas is your location.
    Jim Lore
    BPG 1037
    "If you cannot clear up the confusion at least make the confusion clear."

  3. #3
    Join Date
    Jan 2013
    Posts
    12

    Default Re: b.o.p. 12 bolt gears

    i will find out.,they are marked b.o.p. 323 12 bolt.
    i measured across the face of the ring gear and it is 8.2 inches
    they are marked 42-13 G.M.
    I got these in trade and have no use for them,,,
    would trade for 4.11 gears for a 7.5 inch G.M.
    THANKS

  4. #4
    Join Date
    Jan 2013
    Posts
    12

    Default Re: b.o.p. 12 bolt gears

    bump ttt ,,will take best offer,,,,thanks

  5. #5
    Join Date
    Jan 2008
    Location
    KANSAS CITY, MO
    Posts
    3,472

    Default Re: b.o.p. 12 bolt gears

    i could be interested, but i need to give you some info to id it

    if fuicks had 12 bolts in them they where chevells

    if olds had a 12 bolt it was oldsmobiles version of a 12 bolt, which was a 12 bolt HD housing with 8.2/8.5 (unique to those 12 bolts) 10 bolt carier..its not like an 8.5 used in the 70s its a unique animal

    if pontiac used a 12 bolt it was a chevelle rear

    of course, ive pulled many olds 12 bolts out of many A-boys that 20 years swapped in


    post the pinion part number and the part number on the ring gear, and if it works for me, i will take them, and at worst, i will help u ID them
    Mark

  6. #6
    Join Date
    Jan 2013
    Posts
    12

    Default Re: b.o.p. 12 bolt gears

    part # stamped on end of pinion gear is/ GM481 42-13
    ring gear part number stamped on it is 42-13GM

    that is the only numbers stamped on either part,,,thanks price includes shipping.
    Last edited by woody31; 01-19-2013 at 11:09 PM.

  7. #7
    Join Date
    Jan 2013
    Posts
    12

    Default Re: b.o.p. 12 bolt gears

    bump ttt

  8. #8
    Join Date
    Jan 2013
    Posts
    12

    Default Re: b.o.p. 12 bolt gears

    shipped to your door for $69.00 thanks

  9. #9

    Default Re: b.o.p. 12 bolt gears

    3.23 is a great ratio and I'd be tempted to buy them myself. But I dont think you're going to get any action until you clarify what these came out of...I suggest you look up MONZAZ here on the board and see if he can help you ID the set. If we can confirm they are from a 65-67 BOP 8.2 axle, I'll take them and you can consider yourself paid....if not, there's a market for these whether they're 12 Bolt Chevy, 12 Bolt Olds, early or late 10 bolt BOP, etc.. good luck, ands please let us know how you make out.
    Rhett

    65 Gran Sport Convertible
    71 GS455 - Unconfirmed Stage1
    73 Gran Sport Stage1 4spd
    72 Pontiac Grand Ville Convertible

    71 GS455 Conv. 4spd Tribute - Sold, now a Swedish citizen
    66 Corvair Monza 140 4spd Convertible - Sold, presumed Hurricane Sandy victim

  10. #10
    Join Date
    Jan 2013
    Posts
    12

    Default Re: b.o.p. 12 bolt gears

    ok will do,,,thanks

  11. #11
    Join Date
    Feb 2002
    Location
    NY
    Posts
    13,186

    Default Re: b.o.p. 12 bolt gears

    Quote Originally Posted by Bigpig455 View Post
    If we can confirm they are from a 65-67 BOP 8.2 axle, I'll take them and you can consider yourself paid..
    interested if they're for either 71-72 BOP 8.5" or 12 bolt chevy car 8.875"
    Alan W

    BPG # 1048 - Charter Member
    NE GS/GN Club - 17 Year Member
    68/69 Buick StepChild Nation - 29 Year Member

    What is a Buick StepChild ?
    Quote Originally Posted by 442w30 View Post
    ... They have awkward proportions from certain angles, and they look dumpy compared to their GM brethren
    ....'68 SportWagon400 "Sportn'Wood"..............'69 GS400 Convert "BigRed"..........

 

 

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