Anyone know the exact height of the trim?

[Skunksmash]

Truck is an 87 Silverado. I am putting new trim on my truck after having had it painted. I saved a little money not having the bodyman do a lot of stuff that I can do myself.

But I didn't consider one important detail. I dont know the exact height of the trim. With no old crusty lines from the old trim, I don't know how high up its supposed to be on the sides of the truck. To clarify, I'm talking about that rubber door guard stuff that runs the length of the truck, going all the way down the side.

Its this stuff, got it at Oriellys:

http://www.usa1industries.com/1981-8...t-longbed.html

Does anybody here have a factory truck that still has that trim on it? Or at least those grungy old lines where it used to be? If so could you possibly take a measurement from the bottom of the truck? Preferably right at the bottom of that lip where the steel rolls over the underside. That way I'll know to just measure from the bottom of that and it will be easier.

Or, if someone somehow has access to that information perhaps from a shop manual or reliable web source or something. Last thing I want to do is get it wrong.