1. Welcome To GMTruckClub.com!

    The #1 Chevy Truck Forum Online
    Online since 2004, we are the #1 Chevy Truck & SUV forum and user community. If you have any questions about your Chevy or GMC Truck, SUV or Crossover, or just want to connect with other GM owners and enthusiasts around the world, you've found the best place on the internet to do that.

    Join Today ~ It's Free
    Registering is Free and Easy! Hope to see you on the forums soon!

Brake Drum Size

Discussion in 'General Chevy & GM Tech Questions' started by ncof300d, Jun 10, 2009.

  1. ncof300d

    ncof300d New Member

    Without removing the rear wheel is there a way to tell whether I have 10" or 11" drums?
    My VIN is 1GCEK14R2VE205747.
  2. werty

    werty Rockstar 100 Posts

    1GCEK14R2VE205747VIN:1GCEK14R2VE205747Year:1997Make:Chevrolet TruckModel:K1500 1/2 Ton 4WD - PickupEngine:5.7 L 350 CID V8VEHICLE INFORMATIONCountry:UNITED STATESMake:ChevroletVehicle Type:pickup TruckModel:K1500Engine Type:V8, 5.7L; CPIYear:1997Assy. PlantPontiac, MIProduction Seq. Number:205747Body Type:2 Door Cab; RegularTrim Level:BaseDriveline Type:4WDGVWR Class:Class E: 6,001-7,000 lbBrake System:HydraulicSeries:1/2 tonVehicle Class:Full-size PickupEngine Series Code:WRN L31Fuel Type:GasolineManufacturer:General Motors CorporationEngine Code:R
    I CANT THEY LIST BOTH SIZES:grrrrrr::grrrrrr:
  3. Jimmiee

    Jimmiee Epic Member 5+ Years 1000 Posts

    Why don't you want to pull a wheel?
  4. MrShorty

    MrShorty Epic Member Staff Member 5+ Years 1000 Posts

    If the Max diameter is stamped into the drum in a convenient place, and you can see through the gaps in the wheel, and one of those gaps is in a convenient place, then you would be able to read the max diameter off the drum without removing a wheel. Otherwise, the easiest (and most of the time quickest) way to find out is to pull a wheel and see what is stamped into the drum,
  5. Mean_Green_95

    Mean_Green_95 Epic Member 5+ Years 1000 Posts

    I would 10, A guy I know has the a Z-71 and he has the 10in drums too.
  6. ncof300d

    ncof300d New Member

    I was hoping to only pull the wheel when I go to replace the brakes.
  7. Jimmiee

    Jimmiee Epic Member 5+ Years 1000 Posts

    Murphy's Law says if there are 2 choices you will always get the wrong one, <G> Another reason to pull the wheels is you may need a hardware kit and if you don't pull the wheels,, you will need wheel cylinders for sure! :)
  8. Z71_guy

    Z71_guy Epic Member 5+ Years 1000 Posts

    most likely you have 10in but like jimmiee said if you dont look it will be wrong
  9. ncof300d

    ncof300d New Member

    I changed the front brakes an now I want to take care of the rear. I pulled a wheel and I did not see a 10 or 11. I did find a part number 15588223. I googled the number but could not find out which size. Any guesses? I held up a tape and I am guessing that they are 10' drums.....just want to confirm.
  10. jedepsub

    jedepsub Rockstar

    You can also measure the thickness of the drum. There is over 1/4" difference in thickness between the 10" & the 11" shoes. The 10" x 2.24". The 11" x 2-3/4".

Share This Page