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3/4 ton swap

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by evil bastard, Jul 9, 2000.

  1. evil bastard

    evil bastard Registered Member

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    Location:
    central wa state(yaakima valley)
    hey all, just read the article on the main page but im still wondering.....my 74 has a d44 front/12bolt rear. will a 3/4 ton 8 lug d44 bolt right in? i was wondering about caliper sizes and brake fittings(id like to use my ss brake hoses) as for the rear......is everything compatible, such as brake hose fitting, spring perches, etc? will i need a different brake proportioning valve for the bigger drums? this swap wont happen for a while but id like to know all i can ahead of time.
     
  2. 8_YOUR_H2

    8_YOUR_H2 1/2 ton status

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    Location:
    Iowa
    Both axels will bolt right in. The calipers are different so you will have to change the brake lines in front. the rear will be fine, EXCEPT for the E-Brake cable you will have to get a backing plate off of a 14sf or get the E-Brake lines from a 3/4 ton. I also wondered about the breaking thing, the Power booster is no diferent between a 1/2 and a 3/4 ton truck and you should have no probles with the proportioning valve. It is a match made in heaven!!
     
  3. bablazer73

    bablazer73 1/2 ton status

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    Location:
    upstate ny
    for optimum braking, you should use the 3/4 ton master cyl. the wheel cylinders are larger on the rear and require more fluid to operate.

    your right. I don't understand the jeep thing!
     

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