Brake upgrade on 2000 Yukon or Tahoe

Discussion in 'Engine & Drivetrain' started by Ming15237, Dec 1, 2018.

  1. Ming15237

    Ming15237 TYF Newbie

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    So I am aware this subject has been beaten to death on this forum but I wanted to write this so that the average idiot (such as myself) could understand it. I own a 2000 GMC Yukon SLT with 85k miles on it. I have ALWAYS hated the stopping abilities of this truck, as it is BY FAR the biggest weakness of the vehicle. I am also a ASE Certified Master Tech. This vehicle is used mostly for snow plowing and occasional family usage (I own 5 vehicles total and only have 2 drivers so I don't use the truck all that much mostly because the brakes are woefully inadequate!). When I purchased the vehicle 3 years ago I changed the front brakes and rotors with power stop drilled and slotted rotors and new rear brakes and rotors from AutoZone. Even with the new brakes and rotors on it I still had a difficult time stopping the vehicle. The brake system had been power flushed and the ABS pump had been replaced in an attempt to help with the spongy brake pedal, all to no avail. I found a youtube vid where the guy did a swap so I gave it a go.
    The new brake calipers, rotors and brake pads I used were from a 2011 Chevy Suburban 1500 with a 5.3 V8. The rotor is SIGNIFICANTLY thicker and the diameter is also much larger. I have 17 inch wheels so I had no issue fitting the calipers. I used Raybestos EHT pads, Raybestos coated rotors (we need these in the north where road salt is aplenty around here) and centric calipers. There is no need to change the brake hoses as out hoses fit just fine. I am also NOT a fan of braded stainless steel lines as I have seen them fail on multiple occasions. The swap took me less than an hour (mainly because I have a lift and use power tools :). The difference in the braking was AMAZING! I could overheat my old brakes with 4 panic stops. I can now actually make the ABS system kick on dry road! LOVE IT and NO brake fad!
     
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  2. ScottyBoy

    ScottyBoy Full Access Member

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    I did this same upgrade to my 2001 Suburban about a year and a half to two years ago. While braking has DEFINITELY improved, it's not a night and day difference. I was in a wreck about 2 months ago and even this brake upgrade couldn't stop my big ass Suburban fast enough. Granted, it WAS raining and the roads were slick as shit, so I honestly don't know if I would have been able to stop in time had it not been raining. At least it DID slow it down enough that the impact wasn't severe enough to trigger the airbags.
     
  3. Ming15237

    Ming15237 TYF Newbie

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    There are a lot of mitigating factors in your accident, slick roads, rain, and tire conditions all play a significant factor in a vehicles ability to stop. As such you have a Suburban which weighs more than the Yukon/Tahoe. My Yukon prior to the caliper upgrade was impossible to cause the front wheels to lock and engage the ABS, I can now make the front wheels lock with ease. The mechanical advantage offered by the larger diameter rotors is significant, as is the larger brake caliper pistons. Both of which offer a significant increase in braking ability’s.
     
  4. iamdub

    iamdub We need a new plague.

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    Brakes only stop the wheels from turning. If the tires are slick or just not grippy and/or the roads are wet, it doesn't matter how great your brakes are. Brakes being able to lock up wheels is about as best as you can get. The rest is all on the ABS system to prevent them from locking and the amount of grip that relatively tiny footprint your tires have on the road. If you remove the ABS fuse and can't lock up your wheels, then your brakes aren't up to par.
     
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