Ryan's driveshaft broke because he was too cheap to buy heavier material. My front shaft is 2" 1/4 wall inner and 2 1/2" 3/16 wall outer and it hasnt broken in 2 years of rock bashing. I'd go for it. At high speeds it will vibrate like a mofo but thats not usually an issue anyway. You have to grease them almost every trip too but thats no biggie, you could put grease zerks in it like Eric did. I wouldnt do a square shaft for the rear though, unless your truck sees absolutely zero street time.