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3.73s in a cucv

Discussion in '1982-Present GM Diesel' started by 84CUCV, May 14, 2004.

  1. 84CUCV

    84CUCV 3/4 ton status Premium Member

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    I was wondering how 3.73s would be compared to the 4.56. I going to swap the 1 ton for the 3/4 ton rears and sell the truck. 3/4 ton rears came from a p/u so they should bolt right up right??? What about the drive shafts? thanks mike
     
  2. 84CUCV

    84CUCV 3/4 ton status Premium Member

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    Anyone??
     
  3. jac6695

    jac6695 1/2 ton status

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    It seems to me 3.73 would work well to lower the rpm's to a good range for the 6.2. The 3/4 ton's should bolt in. The only difference is the Ubolts for the 60 will not work on the 44/10 bolt. Ujoints should be the same and driveshaft length close.
     
  4. 84CUCV

    84CUCV 3/4 ton status Premium Member

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    OK will i be able to do about 65 with not to much rpm? thanks mike
     
  5. BlazerGuy

    BlazerGuy 3/4 ton status

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    What tire size are you running? /forums/images/graemlins/thinking.gif
     
  6. K10ANDYKHAMNIC

    K10ANDYKHAMNIC 1/2 ton status

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    the 3/4 ton rear will NOT bolt in , the spring pads are farther apart.
     
  7. 84CUCV

    84CUCV 3/4 ton status Premium Member

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    For now stock tiers. Down the road 36. I got them for 200 bucks complete so i figure i can go wrong.

    mike
     
  8. jac6695

    jac6695 1/2 ton status

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    [ QUOTE ]
    the 3/4 ton rear will NOT bolt in , the spring pads are farther apart.

    [/ QUOTE ]

    Oops! Yup, forgot about that problem. /forums/images/graemlins/doah.gif
     
  9. Pookster

    Pookster 1/2 ton status

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    yikes, stock tires, 3.73's no OD. That will move, but it will be some high RPMS. around 3000ish I would guess.
     
  10. 84CUCV

    84CUCV 3/4 ton status Premium Member

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    How do you figure 3k?? From what little i know, i figuerd 25-2600.
     
  11. 84CUCV

    84CUCV 3/4 ton status Premium Member

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    Anyo f you have calipers for a 3/4 ton ten bolt? Didnt even see they were not there till i got them home. thanks
     
  12. Pookster

    Pookster 1/2 ton status

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  13. 84CUCV

    84CUCV 3/4 ton status Premium Member

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    Can i use 1/2 ton caliper on the 3/4 ton front?? thanks for the replys.
     
  14. tRustyK5

    tRustyK5 Big meanie Staff Member Super Moderator GMOTM Winner Author

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    1/2 ton calipers and 3/4 ton calipers are the same thing...so yes.

    Rene
     
  15. 84CUCV

    84CUCV 3/4 ton status Premium Member

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    I thoght they would be stronger calipers or something like that. thanks
     
  16. joez

    joez 1/2 ton status

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    Ive got 3.73's in my K5, with 33's. She moves right along. Wont win any drag races, but thats not my thing.
     
  17. 84CUCV

    84CUCV 3/4 ton status Premium Member

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    Thanks guys i got calipers. mike
     
  18. imiceman44

    imiceman44 1 ton status

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    [ QUOTE ]
    I thoght they would be stronger calipers or something like that. thanks

    [/ QUOTE ]

    They are not stronger by them selves.
    The fact that the rotor is bigger, and the mount for the caliper is further from the center gives it more leverage, that is how it's stronger.
    As long as you have everything else from a 3/4ton axle the calipers are interchangeable.
     
  19. 84CUCV

    84CUCV 3/4 ton status Premium Member

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    thanks /forums/images/graemlins/waytogo.gif
     

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