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Thoughts on Brake Upgrade

Discussion in 'The whoa and the sway.' started by Steve73GS, Jul 12, 2020.

  1. Steve73GS

    Steve73GS 73 GEE YES

    I have a 73 GS, full weight, running a TA413 and the brakes are pretty marginal, especially when first driving car until it fully warms up. Brakes were fully serviced last year, front disc and rear drum and have about 1300 miles on them. I'm considering upgrading but see differing comments on what is best from a cost/benefit standpoint and also wondering if there may be fitment issues. I'm running 15×7 front and 15×10 rear. Any thoughts?
     
  2. LARRY70GS

    LARRY70GS a.k.a. "THE WIZARD" Staff Member

    What's your vacuum at idle?
     
    Steve73GS likes this.
  3. john.schaefer77

    john.schaefer77 Well-Known Member

    I ran a 413 and had about 14 inches. My Drum brakes were fine. Mine was installed 4* advanced @109. Wonder if front disc makes much of a difference.
     
    Steve73GS likes this.
  4. Steve73GS

    Steve73GS 73 GEE YES

    Don't have a vacuum gauge...will have to get one and check.

    I haven't seen any complaints with vacuum with a 413...factory front discs are pretty small compared to discs today.
     
    john.schaefer77 likes this.
  5. knucklebusted

    knucklebusted Well-Known Member

    Here's an experiment to try. I had a big KB cam in an engine that was marginal on brakes at idle. When slowing down, I would gear down into second to cause some vacuum to build up and then it would stop great. If gearing down helps, you have a vacuum issue.
     
    Steve73GS likes this.
  6. Steve73GS

    Steve73GS 73 GEE YES


    Will give that a try. Tks
     
  7. hugger

    hugger Well-Known Member

    20200715_204906.jpg
    11 in Baby!!,...hoping these will help slow her up more better
     
    DasRottweiler likes this.
  8. DasRottweiler

    DasRottweiler -BuickAddict-

    Sportwagon, Vista Cruiser backing plates? JIM
     
  9. TrunkMonkey

    TrunkMonkey Totally bananas

  10. knucklebusted

    knucklebusted Well-Known Member

  11. TrunkMonkey

    TrunkMonkey Totally bananas

    Yep. Double Ugly "E" edition.

    aka Sky Buick. :D
     
  12. hugger

    hugger Well-Known Member

    Nah Master Power kit,..not cheap but my dad wanted to keep the drums on all 4 corners
     
    DasRottweiler likes this.

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