I always thought the 3/4 ton and 1 ton trucks shared the same frame in the pickups. The post on the other board says the 1/2 ton and 3/4 ton frames are the same. Is that true and more importantly are the sub 1/2 ton and 3/4 ton frames the same? I've always kept an eye out for a 3/4 ton to get the frame. No point if its the same as my 1/2 ton's!