Two questions... One, is there a brand or mode you all prefer for mostly street duty with 17" steel wheels and 255/70/17 AT's wrapped around them? Only a one inch lift in back, so mostly stock. Two, when I went to look at compatible shocks online, it offered three sizes for the front of the 4WD 'burb. I think it might've roughly been 17", 19", and 21" sizes. Which is correct for a stock front end?