I've been shopping for 04/05 Suburbans and I wanted to get some some shopping tips.

I have a fairly large family with the wife 4 kids and our Yellow Lab and we need a vehicle that can comfortably carry us all plus our gear.

My budget is about 20k Max and less is better. I've been looking for 04/05 with 70-85k miles in general and will even consider going with a higher mileage on a well maintained truck.

When looking at higher mileage 04/05 Suburbans what type of maintenance do I need to make sure has been done to it?

Regarding the 04 and 05 models, are there any real differences between the two?

The wife and I are really liking the looks of the Z71 package, is there anything I need to be concerned with on the Z71 models?

We tend to keep our cars forever and I know I will be keeping this Suburban for at least another 5 years and adding about 100k miles to it so getting a good reliable vehicle is a top priorty.

With proper maintenance, will it be an issue keeping a higher mileage 04/05 Suburban this long and adding anoth 100k miles to it?