VintAGE-Vans

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BRINGING IT ALL TOGETHER.... A's, G's & E's


2 posters

    64 12 bolt open

    Nastys66
    Nastys66


    Number of posts : 9
    Location : Conneaut , Ohio
    Registration date : 2022-05-03

    64 12 bolt open Empty 64 12 bolt open

    Post by Nastys66 Tue Aug 16, 2022 11:15 pm

    I PICKED UP A 64 PANEL AND IT HAS A 12 BOLT TRUCK DIFF. IN IT. Not sure if its original because it has brake hoses coming out of the wheel cylinders. Any help appreciated
    gfleduc
    gfleduc


    Number of posts : 371
    Location : Kingwood Texas
    Age : 68
    Registration date : 2015-09-19

    64 12 bolt open Empty Re: 64 12 bolt open

    Post by gfleduc Wed Aug 17, 2022 4:17 pm

    What do you need to know?- the vans did come with 12 bolt rears - my 65 has one.

    There are casting dates; see if they end in "3" or "4" - that will give an indication if the rear matches the year of the van.

    Two examples of casting Codes:( F 20 3 ),  ( J 15 4)
    Looking from the back. Check the lower, right, rear side of the pumpkin, right adjacent to the rear cover.
    Nastys66
    Nastys66


    Number of posts : 9
    Location : Conneaut , Ohio
    Registration date : 2022-05-03

    64 12 bolt open Empty Re: 64 12 bolt open

    Post by Nastys66 Thu Aug 18, 2022 8:50 am

    Ok I will check that but do they have brake hoses from the wheel cylinders ? I thought the hoses were only used when the you need movement. Thanks !
    gfleduc
    gfleduc


    Number of posts : 371
    Location : Kingwood Texas
    Age : 68
    Registration date : 2015-09-19

    64 12 bolt open Empty Re: 64 12 bolt open

    Post by gfleduc Fri Aug 19, 2022 3:16 pm

    Well, who know what the PO did - Factory was a hard line.
    I believe I have the strait lengths if you need them...
    Nastys66
    Nastys66


    Number of posts : 9
    Location : Conneaut , Ohio
    Registration date : 2022-05-03

    64 12 bolt open Empty Re: 64 12 bolt open

    Post by Nastys66 Fri Aug 19, 2022 6:50 pm

    I dont need any lines, thanks. Just wondering why there are rubber hoses going into the wheel cylinders. I ran steel lines to them and it works. The hoses thread into the wheel cylinder. My other 2 vans are 66s and they have the steel line going to the wheel cylinders directly. They are ten bolt diffs though. Are the 12 bolts supposed to be like that? I still have to try and find the ID numbers.
    gfleduc
    gfleduc


    Number of posts : 371
    Location : Kingwood Texas
    Age : 68
    Registration date : 2015-09-19

    64 12 bolt open Empty Re: 64 12 bolt open

    Post by gfleduc Fri Aug 19, 2022 6:57 pm

    Not sure of the question - the 12 bolts are hard lined if that is the question.
    Nastys66
    Nastys66


    Number of posts : 9
    Location : Conneaut , Ohio
    Registration date : 2022-05-03

    64 12 bolt open Empty Re: 64 12 bolt open

    Post by Nastys66 Sat Aug 20, 2022 10:12 am

    yes that is the question, thank you. somebody changed something on this one that I have then.
    gfleduc
    gfleduc


    Number of posts : 371
    Location : Kingwood Texas
    Age : 68
    Registration date : 2015-09-19

    64 12 bolt open Empty Re: 64 12 bolt open

    Post by gfleduc Sat Aug 20, 2022 10:26 am

    For my reference - were the original Delco wheel cylinders still installed?  If so - would you share what casting numbers and piston size they are.  The numbers are raised cast numbers.

    Size maybe 7/8  or 1-1/16
    Casting something like this: 5462  965 and 5462  966
    Nastys66
    Nastys66


    Number of posts : 9
    Location : Conneaut , Ohio
    Registration date : 2022-05-03

    64 12 bolt open Empty Re: 64 12 bolt open

    Post by Nastys66 Sat Aug 20, 2022 2:49 pm

    Dont see any wheel cylinder numbers. They are the angled bolt mounts. The housing numbers are B14 on the lower right of pumpkin.
    gfleduc
    gfleduc


    Number of posts : 371
    Location : Kingwood Texas
    Age : 68
    Registration date : 2015-09-19

    64 12 bolt open Empty Re: 64 12 bolt open

    Post by gfleduc Sat Aug 20, 2022 5:46 pm

    Well that would be a pretty casting date Feb 1st 1964 - I would tend to believe it is the original rear
    Nastys66
    Nastys66


    Number of posts : 9
    Location : Conneaut , Ohio
    Registration date : 2022-05-03

    64 12 bolt open Empty Re: 64 12 bolt open

    Post by Nastys66 Sat Aug 20, 2022 8:54 pm

    Can I put a 12 bolt truck posi carrier in it ? They require 30 spline axles, so id have to change them also.
    gfleduc
    gfleduc


    Number of posts : 371
    Location : Kingwood Texas
    Age : 68
    Registration date : 2015-09-19

    64 12 bolt open Empty Re: 64 12 bolt open

    Post by gfleduc Sun Aug 21, 2022 5:27 am

    I cannot say - but can offer a few things:
    My parts book shows the '64 had 17 spline count - is that what you found? My '65 12 bolt is a 30 spline count & the vans did have an option for posi - So I can only guess it should be a go. Hopefully someone on the board with have experience.
    Nastys66
    Nastys66


    Number of posts : 9
    Location : Conneaut , Ohio
    Registration date : 2022-05-03

    64 12 bolt open Empty Re: 64 12 bolt open

    Post by Nastys66 Sun Aug 21, 2022 10:02 am

    Yes I have 17 spline. Can only find 30 spline 31 3/8 long CAR axles to fit. They say the outer bearings are different diameters.
    Nastys66
    Nastys66


    Number of posts : 9
    Location : Conneaut , Ohio
    Registration date : 2022-05-03

    64 12 bolt open Empty Re: 64 12 bolt open

    Post by Nastys66 Sun Aug 21, 2022 10:03 am

    Do you have a part number in your book for the 30 spline ? Maybe something would cross. Thanks.
    gfleduc
    gfleduc


    Number of posts : 371
    Location : Kingwood Texas
    Age : 68
    Registration date : 2015-09-19

    64 12 bolt open Empty Re: 64 12 bolt open

    Post by gfleduc Sun Aug 21, 2022 6:21 pm

    3859321 --> replaced by 3914060
    I maybe help you one better I have a spec sheet from my axle - I was going to go the new make route then found the repair bearing to use.
    PM me your email address if you want a copy of the sheet.
    Nastys66
    Nastys66


    Number of posts : 9
    Location : Conneaut , Ohio
    Registration date : 2022-05-03

    64 12 bolt open Empty Re: 64 12 bolt open

    Post by Nastys66 Mon Aug 22, 2022 11:40 am

    I sent it.

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    64 12 bolt open Empty Re: 64 12 bolt open

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