Hi I'm new here I have a couple questions about my 92 Kodiak LoPro First off a little more about the truck, 92 Kodiak LoPro, 427ci, Allison, 22000 gvwr Question one is Why does the "Primary Brake" light on the dash come on periodically? Hydraulic brakes here. The master cylinder is full and the system has been fully bleed. Question two is What is the towing capacity? Pintle hitch here.