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Thread: rear axle swap

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    rear axle swap

    Hi is there a axle from another vehicle that will fit a 67 g 10 without to much modifications thanks

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    VCVC Charter Member Vanner68's Avatar
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    Yeah, an axle from a 68-70 G10.

    Early vans have the widest axles used by GM, the passenger can rears can be made to work, but require cutting of mounts and relocating. Pickup rears were trailing arm in the 60's, lots of work there.

    Basically, anything but an early rear is going to need some fabrication work and welding.
    Gregg Groff


    There's no place like 127.0.0.1

    1968 Chevy G20 108 panel Now with 454 power!

    1965 Chevy G10 panel- OHC Pontiac inline 6

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    Rear Axle Swap

    Where you asking about the axle specifically or the whole rear end?

    If it is just the axle, it appears 65-67 have the same p/n 3859321. So far the best I can determine no other vehicle seems to share the p/n; I am going through the part replacement myself. Looks like it has to be made to order. Moser sell's pair ~$300
    Gary
    1965 Display

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    Quote Originally Posted by gfleduc View Post
    Where you asking about the axle specifically or the whole rear end?

    If it is just the axle, it appears 65-67 have the same p/n 3859321. So far the best I can determine no other vehicle seems to share the p/n; I am going through the part replacement myself. Looks like it has to be made to order. Moser sell's pair ~$300

    the whole rear end /axle

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    VCVC Member Wookee's Avatar
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    Cool

    It is actually cheaper easier to find a local shop who can rebuild rear end and have your original rear rebuilt.
    They can also change your gear ratio while they have it apart.
    BTDT the 300.00 I spent to have my rear rebuilt.Gear ratio changed to 3:08 was well worth it.....
    Its a "van thing". A life style you have to live to understand!!!!

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    VCVC Member Optik's Avatar
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    Quote Originally Posted by Wookee View Post
    It is actually cheaper easier to find a local shop who can rebuild rear end and have your original rear rebuilt.
    They can also change your gear ratio while they have it apart.
    BTDT the 300.00 I spent to have my rear rebuilt.Gear ratio changed to 3:08 was well worth it.....

    IMO, unless you are already a professional at it, setting up a rear end is something that is WELL worth the money spent to have done right. I've assisted on a couple set-ups but I still would not ever trust myself to do it correctly without a pro looking over my shoulder.
    =============================================
    Tim Henderson
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    1965 Chevy Sportvan "Good Twin"
    1965 Chevy Sportvan Deluxe "Evil Twin"


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    VCVC Member Wookee's Avatar
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    Cool

    The GM rear center sections are pretty tricky to set up correctly.
    There are pretty tight tolerances that need to be worked into the gear set up while assembling it.
    If done wrong it will be noisy and it will prematurely wear the internal gears out.

    I believe this is the main reason that the 9 inch Ford rear ends are used so much in the Hot Rod world.
    The Ford center section can be easily removed as a complete unit.
    I know I have wanted a Ford 9 inch for years now.
    A 4:11or the Ford equivalent for around town driving.
    Along with a 3:08 for long high way runs.....
    Its a "van thing". A life style you have to live to understand!!!!

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    VCVC Charter Member Vanner68's Avatar
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    Yep, this is one area where the Ford and Mopar guys have an advantage, with the 9" and 8 3/4" rears
    Gregg Groff


    There's no place like 127.0.0.1

    1968 Chevy G20 108 panel Now with 454 power!

    1965 Chevy G10 panel- OHC Pontiac inline 6

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    VCVC Member Optik's Avatar
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    Quote Originally Posted by Vanner68 View Post
    Yep, this is one area where the Ford and Mopar guys have an advantage, with the 9" and 8 3/4" rears
    I had an 8 3/4" rear in my 64 dart. I was able to find a 2.93 geared center section for highway cruising. It worked well with the A999 torqueflite in the car which was a towing package with an steeper first gear. In hindsight I wish I had kept that car.
    =============================================
    Tim Henderson
    Cincinnati, OH
    1965 Chevy Sportvan "Good Twin"
    1965 Chevy Sportvan Deluxe "Evil Twin"


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    Van Addict dougw1's Avatar
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    Quote Originally Posted by Vanner68 View Post
    Yep, this is one area where the Ford and Mopar guys have an advantage, with the 9" and 8 3/4" rears
    I'm surprised at GM that they didn't copy the pumpkin diff or start using Dana diffs in some of their stuff.

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    Van Addict dougw1's Avatar
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    Quote Originally Posted by Optik View Post
    I had an 8 3/4" rear in my 64 dart. I was able to find a 2.93 geared center section for highway cruising. It worked well with the A999 torqueflite in the car which was a towing package with an steeper first gear. In hindsight I wish I had kept that car.
    I have a 68 Plymouth VIP that has a 8 3/4 that I'd like to narrow & put in my van, BUT I have a lot of work to do before that, like body work, motor, trans to get it drivable. Got a couple greased pumpkins laying around in plastic tucked away, can't remember the ratios off the top of my head.
    One day I'll get them out, I got my Mopars dialed in where I like them so they were put away.
    What motor was in your Dart?

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    VCVC Charter Member Vanner68's Avatar
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    Quote Originally Posted by dougw1 View Post
    I'm surprised at GM that they didn't copy the pumpkin diff or start using Dana diffs in some of their stuff.
    They did have that design in the 50's.

    Gregg Groff


    There's no place like 127.0.0.1

    1968 Chevy G20 108 panel Now with 454 power!

    1965 Chevy G10 panel- OHC Pontiac inline 6

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    Van Addict dougw1's Avatar
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    I must admit I'm not much of a GM guy, I didn't know that. I wonder why they didn't continue with it during the muscle car era as Ford & Mopar did.

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    VCVC Member Optik's Avatar
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    Quote Originally Posted by dougw1 View Post
    I have a 68 Plymouth VIP that has a 8 3/4 that I'd like to narrow & put in my van, BUT I have a lot of work to do before that, like body work, motor, trans to get it drivable. Got a couple greased pumpkins laying around in plastic tucked away, can't remember the ratios off the top of my head.
    One day I'll get them out, I got my Mopars dialed in where I like them so they were put away.
    What motor was in your Dart?
    It had a 360 with a stock bottom end and a huge cam. Reworked stock heads with 1.6 roller rockers, holley street dominator intake and a holley 600 mechanical secondary carb. Shorty headers and flowmaster 40's that dumped right before the rear axle with exhaust cutouts to the side. Fun little car!!!
    =============================================
    Tim Henderson
    Cincinnati, OH
    1965 Chevy Sportvan "Good Twin"
    1965 Chevy Sportvan Deluxe "Evil Twin"


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    Van Addict dougw1's Avatar
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    Quote Originally Posted by Optik View Post
    It had a 360 with a stock bottom end and a huge cam. Reworked stock heads with 1.6 roller rockers, holley street dominator intake and a holley 600 mechanical secondary carb. Shorty headers and flowmaster 40's that dumped right before the rear axle with exhaust cutouts to the side. Fun little car!!!
    It sounds like it would be.

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