Remove the plug and hook up the independent air. Block the truck from rolling. Listen and find the source of leak. With the engine off, You should be able to test all the air systems.
I'll definetely give this a try when I go back.
Is it a L60, or L80 ? Is it air, over hydraulic, or full air brakes. Check the air compressor governor, at the air compressor.
Thanks, I believe it is a L80, I think its full air brakes, 409 motor, and what I think is a Spicer transmssion but I'm not sure. It has the same shift pattern, but the knob also has a hi/lo switch and the the stick also has some sort of release lever on it too.
I'm tottally new to all of this, I built a 72 C-10 years and years ago, but it's been since then since I've owned a Chevy let alone something so god dam massive.
Oh and I have a friend with an extra set of 22.5 Alcoas...... so hopefully those will be on soon.
My last question is DMV related and maybe someone is already answered this before but, the truck is 23k gvwr which means in cali I can drive it with a class C license. Do I need still to go through the air brake test/endorsement?
