HI guys, i just been readin today on a J.Fishbeck post on the Lowriders thread, that he did use air cylinders to slam Mullins Rivi back in 1970. This said, and considering im buildin a car trying to be as accurate as possible to that period of time this could be a good choice. Until now i only vaguely considered hydros due to trunk space , and thought that bags even if (kinda) not available back then where the way to go. Now this comes up and a new window opens. I also wonder if back then there was a source for cheap "used/recycled" cylinders like the aircraft hydros, army supply. I'd like to know if it was a popular alternative to hydros, how it works, who pioneered the use and as much info as it can be written! Of course It would be nice to keep it as much of an history lesson as possible to keep in track w/ the "mission" of this forum. But i also think that not being a popular argument any info is welcome. Thanx for the help. Nick/bonez.