One.
TWO.
6 lugs per wheel.
The 1500 has 6 lugs as where the 2500 has 8 lugs per wheel>
5 for two wheel drive. Six for four wheel drive.
It has 4 and there all screwed into the exhaust system.
It should have 2 and they are screewed into the exhaust system/Pipes.
There are 6 per wheel.
I get about 14-16 mpg on my 1999 Chevy Silverado 1500, 5.3L V8
Should be 5, for a 1/2 ton
1500s that are 4X4s have 6 lugs per wheel.
Depends on the year. My 99' has four. Call your local auto parts store and they can tell you.