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U joints Q

Discussion in '1969-1972 K5 Blazer | Truck | Suburban' started by R72K5, Mar 4, 2002.

  1. R72K5

    R72K5 Banned

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    Location:
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    what size U joints would be in a half ton with 4 speed and 12 bolt and strap type U joints on rear yoke ? whats biggest that can go on the shaft/yokes ?
    4150 smallest or biggest ? i forgot now
    if i go to NAP and say 4150 will they know what im talking about ?

    thanks
     
  2. ECNiz

    ECNiz Registered Member

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    I believe the sm465/12bolt uses a 1310 u-joint. If you want
    to go any bigger, you need to change the yokes on the transfercase/driveshaft/12 bolt. Some of the common
    sizes are 1310, 1330, 1350, 1410. 1350 is a 1 ton u-joint
    and 1410 is a 1 1/2 ton u-joint.
     
  3. R72K5

    R72K5 Banned

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    but how can i get any bigger yoke for the 12 bolt ? i may just swap to a 4.10 full floater dana60 if i can go get it soon

    thanks !
     
  4. Triaged

    Triaged 1/2 ton status

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    You can get a bigger yoke for your 12B at any driveline shop. If you are going to go w/ a 1ton driveshaft you could just use a conversion u-joint till you get your D60 (I would and have went w/ a 14b over a D60). It would be a NAPA#348 if you don't get it at the driveline shop.
     

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