'69 Riviera, rear drum swap

Discussion in 'A boatload of fun' started by Redcap, Oct 1, 2018.

  1. Redcap

    Redcap Well-Known Member

    Recently, I completed my set of slot mags for my Riviera project, but there is a problem in the rear. The finned drums won't allow the rear wheels to seat. I don't want to butcher up a set of the aluminum drums with a lathe to make it work. Are non-finned, slightly smaller O.D. replacements available?
  2. Briz

    Briz Platinum Level Contributor

    This is what I had to do.

    KIMG0109.JPG KIMG0105.JPG
  3. Redcap

    Redcap Well-Known Member

    Finding a lathe with a large enough throat around here isn't easy! I was hoping a replacement drum would be smaller and work, as I'm not overly confident with my accuracy with an angle grinder.
  4. Briz

    Briz Platinum Level Contributor

    I used a grinder and cut off wheel. Once the fins were rough trimmed start the car,put in drive(wheels off the ground) and lay the grinding wheel against the work until smooth.
  5. racenu

    racenu Well-Known Member

    I used longer wheel studs and a wheel spacer so the rim didn't go on so far as to interfere with the drum. I was using Buick ralley wheels although so they only needed a half inch spacer to clear the drums.
    Last edited: Oct 2, 2018

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