10 of the uncompressed air suspension device 1 of fig1 along arrows 13 x referring to fig1 4 and 7 12 the suspension device 1 includes a main airbag can 30 having a generally cylindrical shape with link rod 70 having a threaded end 78 which extends from the ring portion 38 of the rear wall 36 an opposite enlarged cap end 72 has a diameter larger than the through hole opening in ring 38 and has an inner threaded end portion 72 that is locked in place by link rod nut 80 so that protruding ring end 38 of rear wall 36 is sandwiched between nut 80 and enlarged cap 72 interior threads 71 on the other side of cap 72 is used to capture threaded outer end 171 of shock extension rod 170 which has an opposite end 178 inside of piston members 51 56 54 52 and 50 shock extension rod 170 with the lower portion 56 54 of piston members 51 are positioned inside of top 40 with wiper seal 260 and gland seal 270 positioned within interior grooves 43 of the top 40 so that a fluid seal exists between moveable piston members 51 and top 40 lower exterior threaded walls 45 of top 40 eventually locks.