YES, They are the same.
No because the plain 2500 model (non-HD) had the 1500 style front end, all 2500HD and 3500 models different front end styling with a different hood.
The starter relay on that 99 Silverado is located in the under hood power distribution center.
Under the hood inside the power distribution box.
Yes, It's the samething.
take the fender off the hood off and the hood off and dash and it should be right behind the glove dept
Under hood, center, upper engine area, passenger side, rear corner of engine, mounted inside water separator housing
where is my hood latch located on my 1999 Chevy silverado pickup
Should be located in the under hood fuse box. The 15 amp blue fuse is marked "radio".
YES
Well, honey, the vacuum line on a 2003 Chevy Silverado 2500HD is typically located near the intake manifold or throttle body. You might want to grab a flashlight and get down and dirty under the hood to track it down. And remember, if in doubt, consult your vehicle's manual or a professional mechanic before you start yanking things apart.
it could but it would be a whole different shape