700r4 to 465 hydraulic, whats involved?

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by sled_dog, Feb 17, 2003.

  1. sled_dog

    sled_dog 1 ton status

    Sep 3, 2002
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    Austin, TX
    I am looking at getting a newer Blazer(88-91) and I know of one but its automatic. What all would be involved in replacing the slushy machine with a 465 hydraulic? Need the tranny and bellhousing of course. Driveshaft modification I am guessing? How about for pedals and cylinders?
  2. dyeager535

    dyeager535 1 ton status Premium Member

    Dec 13, 2000
    Likes Received:
    Roy WA
    When I built mine (previous 700 '86 body, '81 frame, unknown tranny) I had to punch the holes out of the firewall and floor for the master cylinder/shifter obviously, built a column without the shifter (not really necessary if you don't mind a handle on the column) drilled 4 holes in the frame for the crossmember, and bolted it all in.

    Since I was using 10 bolts, and the donor transmission/tcase/driveshafts were all 70's stuff, I had to use an "adapter" u-joint for the 10 bolt axle/12 bolt d-shaft, since rectified with a 12 bolt yoke on the 1o bolt axle. The front shaft had to be shortened, but that was it.

    Pedals are a bolt in deal, minus the two additonal master cylinder locating "studs" that project off the hydraulic pedal assembly.

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