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1350 yoke for a 12 bolt?

Discussion in 'The Garage' started by uberbeans, Aug 24, 2006.

  1. uberbeans

    uberbeans 1/2 ton status

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    I've heard mention of an upgrade to a 1350 yoke for a 12 bolt. How does this work? Does it come directly off of a 14 and fit the 12? As I am not going to upgrade to a 14 until I blast my 12 to bits I would like to try this out. I think this may be sooner than later with my Detroit/4:56's and 37's. I'm not rock crawling here in Florida, mostly mud and trails.

    I know that this has been discussed before but what 14 boltFF directly bolts up to a Blazer? Just in case I come across on to buy whats a good price? What other mods need to be done to it? Thanks in advance.
     
  2. pauly383

    pauly383 Daddy383 Staff Member Moderator

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    It comes off of a 12 bolt installed in a 4 speed truck , not all , but all the ones I have seen . FWIW , I don't have one and mines holding up to real wheeling , and daily driving chirping tires with a locker .
     
  3. uberbeans

    uberbeans 1/2 ton status

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    I have a 1980 with a sm465 tha came that way from the factory. Maybe mine already has the 1350 yoke. Is there a way to tell?
     
  4. pauly383

    pauly383 Daddy383 Staff Member Moderator

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    Measure the u-joint :thumb:
     
  5. fabjunkie

    fabjunkie 1/2 ton status

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    My '77 was a 1310 joint fwiw.
     
  6. uberbeans

    uberbeans 1/2 ton status

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    What are the measurements for the 1350 and the 1310? Thanks.:D
     
  7. pauly383

    pauly383 Daddy383 Staff Member Moderator

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    The 1350 ( from baddog in the part # thread ) is 3.625 x 1.188 .

    1310 is smaller diameter ( from me ) .
     
  8. marv_springer

    marv_springer 1/2 ton status

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    I got one from the dealer. Think the application was for a 14b SF. I had to change the pinion seal.

    Marv
     
  9. mrk5

    mrk5 The Sticker Guy Moderator Vendor GMOTM Winner Author

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    I got mine from High Angle Driveline, a vendor on CK5. IIRC it was $70. It is also a u-bolt style. I needed a new one, so I figured what the heck.
     
  10. Jimbo*

    Jimbo* 1/2 ton status

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    Here ya go: ebay #320018710556
    Jimbo
     
  11. Ryan B.

    Ryan B. 3/4 ton status GMOTM Winner

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    I used to run a billet 1350 ubolt style yoke from mark williams.
     
  12. uberbeans

    uberbeans 1/2 ton status

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    I saw that on ebay and it looks like a something I would want? Is it a good price? Do you recommend modifying the drive shaft for a 1350 or using a combo u-joint?
     
  13. mrk5

    mrk5 The Sticker Guy Moderator Vendor GMOTM Winner Author

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    I think you did alright on the deal. Not a steal, but you got lots of extras with it. Like I said, I paid $70 for the 1350 yoke from HAD, with u-bolts. The cool thing is that he milled the piece so it would use my factory seal. IIRC, the factory 12bolt 1350 had a different size, bigger.

    If you've got the funds, swap out the yoke on the driveshaft. It'll make joints cheaper. Plus if you do go to a 14bolt, you're set.
     
  14. pauly383

    pauly383 Daddy383 Staff Member Moderator

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    For sure it does . When we put my 3.73 12 bolt under my truck , it came from a 4 speed truck , I put my auto yoke on it and the damn thin leaked because I didn't reaize the seal was bigger on the 1350 yoke originally on there .

    FWIW , my DD runs 1310 on a formerly 1350 axle :D
     

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