dont you have to have a way to get under the truck pretty well to get the back spark plugs and anymore it seems as though the engine bay has no space to work on it my dads 97 tahoe has amounts of space to actually work on it

 

I don't really see any trouble with the way things are packaged. Sure sometimes you have to use a few small extensions instead of a big one, or a flex/wobble head to get to stuff, but this really isn't what i'd call 'cramped'.

Wanna see cramped? go work on a E150, or any full size van. just go open the hood, you'll run away scared, i did.