Forum Discussion

homefor2's avatar
homefor2
Explorer
Jul 31, 2015

Chevy Owners with a MaxBrake Controller

Need help figuring out the T fitting that fits a 2008 Avalanche. Should be the same as a Silverado. If you could tell me the number on the brass T fitting or send a picture of the T on the master cylinder, that would be much appreciated. I'm talking about the T that connects the brake line to the Maxbrake sensor at the master cylinder.
  • homefor2 wrote:
    Lynnmor wrote:
    homefor2 wrote:
    Found out the Avalanche has a rare metric thread for the master cylinder fitting and no T fitting is available. I give up. Selling my unused MaxBrake controller.


    Should be same as Silverado, someone gave you a bum steer.

    You will be sorry if you let the last good after-market controller get away.


    Not the same as Silverado. I know because I tried to get the Silveraldo fitting to screw in and ruined the threads in the master cylinder to the tune of a $200.00 for a new master cylinder. I also got the specs on thread size from the GM parts department and it's a very uncommon metric that even machine shops did not have.


    That's strange, I looked up the replacement master cylinders on NAPA, and both were the same number.
  • Lynnmor wrote:
    homefor2 wrote:
    Found out the Avalanche has a rare metric thread for the master cylinder fitting and no T fitting is available. I give up. Selling my unused MaxBrake controller.


    Should be same as Silverado, someone gave you a bum steer.

    You will be sorry if you let the last good after-market controller get away.


    Not the same as Silverado. I know because I tried to get the Silveraldo fitting to screw in and ruined the threads in the master cylinder to the tune of a $200.00 for a new master cylinder. I also got the specs on thread size from the GM parts department and it's a very uncommon metric that even machine shops did not have.
  • homefor2 wrote:
    Found out the Avalanche has a rare metric thread for the master cylinder fitting and no T fitting is available. I give up. Selling my unused MaxBrake controller.


    Should be same as Silverado, someone gave you a bum steer.

    You will be sorry if you let the last good after-market controller get away.
  • Sure wish you could use it, I love mine. You might check with Summit, or Russell fittings for adapters.
  • Found out the Avalanche has a rare metric thread for the master cylinder fitting and no T fitting is available. I give up. Selling my unused MaxBrake controller.
  • homefor2 wrote:
    Need help figuring out the T fitting that fits a 2008 Avalanche. Should be the same as a Silverado. If you could tell me the number on the brass T fitting or send a picture of the T on the master cylinder, that would be much appreciated. I'm talking about the T that connects the brake line to the Maxbrake sensor at the master cylinder.


    Send a PM to members Dutch & Di. Chris