Odd question: Are our trucks supposed to sound loud?

[emil77]

I know, odd title, but keep on reading, hopefully I will explain myself.

I ask this odd question, because my truck is just plain loud. When I am driving, as it's attempting to shift into the second gear, the engine is really loud, almost like it's racing, then around 40mph, boom shifts into the next gear and settles down. Is this normal? Does it sound like this because our trucks are old, not much sound proofing, etc? I can't tell what rpm it's at, because I don't have a tachometer.

Now don't get me wrong, I love the sound of loud things. But is my truck normal?