I have used pair of Sway-A-Way RaceRunner 2.5 Remote Reservoir 8" travel shocks (I believe PT#SAW 56000-108) (used but in good shape/no springs)Brand new these shocks are Between $370.00 and $450.00 each, and are completely rebuildable. Asking $450.00 for both.(may consider trade for a set of good used suspension seats) I will get some pics up if needed otherwise pics and specs are available on the Sway-A-Way website. They measure at 22.75" extended and 14.75" collapsed with 7/8 shafts. if you have any questions please feel free to call me at (9o9) seven 5 eight 6 one 7 seven my name is Rich. Thanks ( i have a few pix on my phone that i can send at any time)