Windshield condition. With the exception of the conditions listed in paragraphs (c)(1), (c)(2), and (c)(3) of this section, each windshield shall be free of discoloration or damage in the area extending upward from the height of the top of the steering wheel (excluding a 51 mm (2 inch) border at the top of the windshield) and extending from a 25 mm (1 inch) border at each side of the windshield or windshield panel.
I think the rule is 2 intersecting lines, or a line in the sight area, for cracks, chips in the line of sight 7/16 ( bigger than a dime) maybe? One crack out of sight area may be ok.
There's a bunch of rules. Used to be any damage in teh acute area. Outside the area total accumulation couldn't reach 24 inches. Then you've got bulls eyes. Then you've got those cracks that turn a 1 piece in to 2 pieces.
Depending on what kind of truck you have, you can replace them your self in anywhere from 10 minutes to an hour or so. My international is a 10 minute truckstop parking lot deal, my kw has curved glass and takes me usually an hour. The next time I will change the rubber in it too, so both glasses will take a little longer.
I hate changing those curved KW windshields... I always fight getting that rubber noodle back in... Or I punch a hole in the gasket just getting the glass in place.
They do suck, compared to flat glass, but much easier since I bought the correct to. lol I get more practice than most drivers too though.
Yeah we had a pretty bad downpour on Thursday afternoon. I was just getting back from TN, after a stop in SLC. I got into the rain about 3 miles from the yard and it was really putting it down. A motorcyclist had just passed me as the rain started. By the time we went the 3 miles to the exit you could have filled buckets from the water running out of his sagging sweat-shirt. I felt so bad for him, I hung way back and gavw him lots of space, once when a truck pullimg a tank passed him I completely lost sight of him and his bike in the road spray and rain haze. Poor guy had to have been soaked to the bone.
I used to do 5 or six a year at the last place I worked... We ran off road trucks and went through alot of glass
Mine varys from year to tear, I actually go through way less here than when I ran the alcan. I think I bought 10 the last time I bought windshields and still have 8 of them, and it has been a while.