There hasnt been a big market for the 75-82 frames with C4 suspension built over the past 10 yrs or so. About one a year pops up to be built at the shop. I am wanting to kno if there was a frame out for the do it yourself guys...would you be interested in one?? It would mount stock 84-87 C4 suspension and no mods to the car. It would be a bare uncoated frame 2x4 rectangle .120 wall for the guy that likes to work on his cars. The hard part would be done. Its just a thought that could happen if there is enough intrest. Would like all your input as to what you would like to see or if you think you could do some fab work and keep cost down.