Help with brakes / rears - options and suggestions

Discussion in '1969-1972 K5 Blazer | Truck | Suburban' started by mcmlxix, Apr 22, 2003.

  1. mcmlxix

    mcmlxix Registered Member

    Nov 28, 2001
    Likes Received:
    Las Vegas
    I have a 70 K5 with SM456 & NP205. I am pulling out that combo (and its for sale with everything including a new clutch with 8 miles) and have a 88 K5 and 71 K5 donor truck. I have a bunch of questions...

    My 70 K5 has 4 wheel manual drums. I have a 71 or 72 doner that has the discs on the front and power booster. Now I have an 88 K5 with power discs. What do I do???

    I think I have three options:
    1. Can I use the rears from the 88?
    2. Swap rears from 71 parts truck with front disc brakes but I dont know what condition the rears are in (very rusted and would need complete rebuild of brakes anyway)
    3. Use my drum rears that i know are ok and swap the disc brake parts from the 71 to the 70? (knuckles and other parts)

    Can I use the power brake booster setup from the 88 on my 70 with the mounting bracket form the 71?

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