2003silverado wrote:
1. Yes
2. Probably not enough to notice.
3. Your vintage of 6.0 engine has 300hp and 360 torque. The newer gen 6.0 has 360hp and 380 torque. Also, the 6 speed transmission that has been mated to the 6.0 liter since 2007 is a vast improvement over your 4 speed. Also, the newer trucks have a stronger frame, larger brakes, and class V receiver.
4. If the 6.2 ends up in the HD trucks, it will be better but at this point that is purely speculation.
5. Yes, the longer the trailer the more likely sway will be a concern.
Exactly this^.
For #2 I'd say YES.
Although for #2, the answer to #3 is part of it. The minor nuances of a 13 year old vehicle from a physical and mechanical condtion standpoint DO affect the vehicle's ability, or at least the ease or comfort level.
Well maintained is one thing, new is another. Just because components haven't reached their service life does not mean their capacities may not be somewhat reduced.
But if the truck really is 90% or more up to snuff compared to a new 2005 then this is only a small factor.
We had your same basic truck, 02, but crew cab diesel. At those well maintained miles I did not think it lost ANY capability. Sold it with about 150k. BUT there were subtle things that were getting worn.
Compared to the same truck that was beat on and not well maintained, the 150k truck we had was way more capable.
A new one will be noticeably "nicer" which will add to your perception that it is doing the job better. And as mentioned, the capabilities are also somewhat increased compared to your truck.