Hey Stranger, Looks identical to mine. Check out my photobucket below.
I tend to disagree with Crenwelge. These are LOTS more than a beefed up pickup. The cowl post tag says 19500 lbs. This is a heck of a big truck. I think it was Spanky that said they were like a 2 and 1/2 ton. There is a total of 8 wheel cylinders.
Yep, brakes first. Cost me a grand, but I have great brakes now.