i was told by some guys on the "other" site that if you leave the bed on, all you have to do is support the the frame infront of the leaf springs and at the rear of the frame. so i guess you'd only need four jackstands for the back.
i put in my c-notch with the bed on. supportted the frame with jack stands in front of the axle and behind it. you definately dont want the frame to twist. i dont know why you would need 6, but i guess the extra stands couldnt hurt... just get in the way. either way, support the frame, mark out where you need to cut (make sure its on the outside of the notch, otherwise you'll be doin a lot more trimming to make it fit) and then go at it with a sawzall... take your time and cut it straight. youll do fine. its really not that hard, just intimidating (sp?) cause your cutting your frame.
A forum community dedicated to GMC and Chevy full size owners and enthusiasts. Come join the discussion about Silverados, Sierras, and other full size trucks performance, modifications, suspension, lift kits, tires, maintenance, and more!