3 questions

[CbrRacer]

ive been stalking the boards for a while now. I hope to have an H3 within the next 6 months but i have some Q's:

1: seems like i read somewhere that the standard transmission will tow LESS! why is that?

2: i see most of you with the auto trans get 14-16 mpg average, what are the standards getting??

3: ive seen an extra button next to the trac control on some hummers (looks like a locking diff button??) does this come only on certain packages?

thanks for any replies