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Which D-shaft is better? Single or Carrier bearing style?

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by chvyhs, Sep 13, 2002.

  1. chvyhs

    chvyhs 1/2 ton status

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    I have a 1990 3/4ton Sub that still does plenty of towing and probably too much rock crawlin. With my wheelbase my rear drive line angle is great but it also hurts me on the rocks because my D-shaft hangs down more than a short wheelbase truck would. I have the single d-shaft in my Sub right now and I have a complete carrier bearing style one in the garage out of a 1978 3/4ton. I've seen that all the 1 tons have the carrier bearing style d-shaft. Is it stronger? I was thinking I could turn my pinion up if I went to this style and get some more ground clearance. What do you think?
    Here's a pic
    [​IMG]
     
  2. muddysub

    muddysub 1 ton suburban status Staff Member Moderator GMOTM Winner

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    that's why i was asking about divorced cases the rear line is too long and the front is too short. it sounds alright, but it's also 2 more u joints to break.
     
  3. BorregoK5

    BorregoK5 1/2 ton status

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    Every bit helps when gaining ground clearance. The little things like that don't seem like much by themselves but when you start adding them all up it really makes a difference.
     
  4. muddysub

    muddysub 1 ton suburban status Staff Member Moderator GMOTM Winner

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    that's true, and you'd probably have the only suburban with a carrier bearing shaft. i'd do it just to be different. /forums/images/icons/grin.gif
     
  5. R72K5

    R72K5 Banned

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    false, burbs also got carrier bearing style shaft when the th400 with fixed yoke were installed, and also when 4 speed manual were installed, which is the case for any other truck model also.
    even vans with regular old th350 use carrier bearing shaft, and they dont have that long of wheelbase.

    alot of swb trucks in 64-72 got two piece shaft too, and there are two differetn styles of the bearings and three or four different styles of mounting them i have come across and seen in the past.


    good luck
     
  6. muddysub

    muddysub 1 ton suburban status Staff Member Moderator GMOTM Winner

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    wow thanks, i learn something new every day on here and i've been here over a year! /forums/images/icons/shocked.gif /forums/images/icons/smile.gif
     
  7. chvyhs

    chvyhs 1/2 ton status

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    Is there any strength advantage in either design?
     
  8. BorregoK5

    BorregoK5 1/2 ton status

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    I would think that having less angle at the U-joint would last longer but reducing the weight of the shaft on the U-Joint by splitting the length of the shaft in half would probalby assits in longevity as well.
     
  9. chvyhs

    chvyhs 1/2 ton status

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    Thanks.

    When are you going to take the So Cal Big Dawgs on a run through Bronco Canyon? Your video looks good.
     
  10. BorregoK5

    BorregoK5 1/2 ton status

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    The next time I do Bronco Hill in Coral Canyon I'm doing it west to east which I'm quite possitive will require both the front and back to be locked and the addition of skid plates on the undercarriage to make up for the width of the truck. It would make a fun SoCal run if people weren't concerned with taking damage so far from home.
     

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