im going to be doing floorpans and floor supports and rockers etc. on my 75 blazer i was hoping someone could tell me of a reasonable priced place that sell quality stuff . they have a kit you can buy on 73-87chevytrucks.com for $60 it has oem style rocker oem style floor support and extended floor section and a couple other peices the price is right but does anyone know if these are good parts or just crap? if they are good ill order them if not please steer me in the right direction thanks...philip

Goodmark is the way to go.

http://www.goodmarkindustries.com/HomePage.html

Click on "Onlin Catalog", then click "Classic Truck Parts", then click "1973-80 C / K"

full list of everything they carry is there including the retail price.

if you rather, they are very helpful over the phone and a quick phone call will net you the part numbers you need i'd bet.

they have very reasonable prices, GM gives their sign of approval on several of their repressed parts and the prices can't be beat - lots of vendors resell Goodmark products.