should just need chevy 77" 3/4 ton front rotors and calipers. Can get them from kragen/autozone/anyplace.
Helluva deal if you wanted 37"s
http://cgi.ebay.com/ebaymotors/4-Goo...item439d751d74
Here's 40's for $290 a tire.
http://cgi.ebay.com/ebaymotors/1-NEW...item5637067588
Deals are out there...snatch em up!