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Features just cant slow it down!!!

Discussion in 'The Hokey Ass Message Board' started by subneil56, Nov 3, 2013.

  1. subneil56
    Joined: Nov 13, 2009
    Posts: 140

    subneil56
    Member
    from bristol vt

    has anybody converted s10 rear end brakes to big brakes . i was thinking of maybe chevy car or truck of the 50s? is it possible switch backing plates ?
     
  2. tfeverfred
    Joined: Nov 11, 2006
    Posts: 15,792

    tfeverfred
    Member

    Probably some fab involved, but anything's possible.
     
  3. squirrel
    Joined: Sep 23, 2004
    Posts: 48,674

    squirrel
    Member

    what does the backing plate bolt pattern look like? The G body 7.5" rear had a funky setup and little brakes....the wheel cylinder mounted in a thick tab that was welded to the rearend housing. If it looks like that, then you're probably out of luck. But if it's a normal four bolt setup, you should be able to find something.

    Although you really need to work on the front brakes to solve your problem....
     
  4. Might be time to update the rear axle. HRP
     

  5. subneil56
    Joined: Nov 13, 2009
    Posts: 140

    subneil56
    Member
    from bristol vt

    it has the normal four bolt set up ,i was hoping some one had already been there??? any help would be greatly appreciated
     
  6. LOWBLAZERO1
    Joined: Aug 3, 2009
    Posts: 435

    LOWBLAZERO1
    Member

    the best disk brake upgrade for an s-10 axle is from an f-body (camaro and firebird) direct bolt in
     
  7. drptop70ss
    Joined: May 31, 2010
    Posts: 1,179

    drptop70ss
    Member
    from NY

    Front brakes do most of the work, what car are you trying to stop? I have S10 brakes all around on my 37 Buick and it stops instantly. My 4000+ pound caddy has G body front discs (same as S10) and 11" rear drums, also stops fantastic.
    Are you sure everything is working as it should?
    If the rear has the standard 4 bolt pattern you should be able to bolt up brakes from the mid 60s up, my 11" drums are from a 68 impala.
     
  8. subneil56
    Joined: Nov 13, 2009
    Posts: 140

    subneil56
    Member
    from bristol vt

    im trying to stop a 35 chevy standard my problem is im trying to stop 33 inch tall tires in the rear.this car has drum all the way around. yes i am sure about every thing working wright .i did some hard stops and with a heat gun all the drum temps were about the same .
     
  9. When you did those hard stops did the front, or rear tires slide? if not, bigger brakes won't help. Many here don't understand the relationship of wheel cylinder bore size to master cylinder bore size. Are all the components from the same donor vehicle? Rear brakes is usually not the place to start generating more stopping power!
     
  10. subneil56
    Joined: Nov 13, 2009
    Posts: 140

    subneil56
    Member
    from bristol vt

    the front would lock up. front brake and master are from the same vehicle .
     
  11. Ok, then you are on the right track.
     
  12. 1955IHC
    Joined: Aug 20, 2013
    Posts: 636

    1955IHC
    Member

    Check the wheel cylinder bore size. Many parts stores label the S10 cylinders the same as all the G Bodies. However S10 had a 7/8" bore verses the G body 3/4" bore.

    Sent via Illinois Bell Telephone Company's Car Radiotelephone
     
  13. subneil56
    Joined: Nov 13, 2009
    Posts: 140

    subneil56
    Member
    from bristol vt

    not to sound dumb but 7/8 bore verses 3/4 witch would give me more braking power?? and if im wright buy saying that 3/4 bore would give more ,would that be better than going to bigger drums
     
  14. 1955IHC
    Joined: Aug 20, 2013
    Posts: 636

    1955IHC
    Member

    The larger bore will apply more force. I'm not good with the math. I know it will also increase pedal travel.

    Sent via Illinois Bell Telephone Company's Car Radiotelephone
     
    Last edited: Nov 6, 2013
  15. fordflambe
    Joined: Apr 9, 2007
    Posts: 549

    fordflambe
    Member

    I've got 4 wheel drum (54 chevy car front and 72 Camaro rear) on 31 Chevy sedan and it stops great.......what master cylinder are you using?......possibly wrong bore on MC?

    And I'm running 31.5 tall tires in back.........


     
  16. Larger wheel cylinder bore will give more force:

    Brake line pressure (lbs/in^2) x Wheel cylinder area (in^2) = pressure on brake shoes. So a larger wheel cylinder diam will give more force.

    You may want to look at the orig S-10 wheel cylinder and then go up to larger, even if not stock S-10, if it will bolt up it will work and the new larger wheel cyl diam will give more rear brake force. You may need to get a real auto parts store parts book and look in the specification section in the back.

    I agree that the F-body brakes may be the easiest solution. The later model 82-up used that same rearend as S-10 used.
     
  17. B.Sharp
    Joined: Sep 26, 2008
    Posts: 140

    B.Sharp
    Member

    7/8 is the larger bore size, 3/4 is 6/8 bore. Just so you are clear which is the larger bore size. Good luck with getting your brakes to stopping your ride. It would be a shame to damage that frontend of your car.
     

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