Unless a shock absorber is bound up internally somehow, it will have no influence whatsoever on ride height. A shock is there to dampen out the oscillations of the spring after the vehicle hits a bump. The amount of jounce/rebound dampening is determined by the internal valving of the hydraulic fluid inside the shock. Even modern "gas" shocks will have a negligible effect on ride height, since the pressure inside the shock is minuscule, compared to the weight the springs are supporting.
Jerry

"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!