Originally Posted by BigMike
Yea thanks for your help. THANK GOD i got nitrogen shocks. What are some of the positive and negative aspects of nitrogen as opposed to gas?
Nitrogen shocks are
gas shocks, they are one and the same. The gas used in gas-charged shocks is nitrogen.
The other kind of shock is a hydraulic which is hydraulic fluid-filled.
Gas shocks were invented for racers who noticed the tendency for standard hydraulic shocks to cavitate and lose their effectiveness when confronted with long periods of high speed up-down shock movements that happen during races. Generally speaking, they are stiffer riding than hydraulic shocks. Most high performance sports cars come standard with gas charged (nitrogen) shocks and most are pretty stiff. The exception to the stiffer ride rule is the OME and one particular model of Bilstein, so far as shocks for Jeeps go. Nitro shocks like Skyjacker Nitros and Rough Country Nitros are commonly thought of as extremely stiff riding.
Hydraulic shocks are, again, fluid filled. A piston moves up and down through the fluid which dampens the action of whatever is connected to it. Examples of hydraulic shocks are most Ranchos, Doestch Tech, Monroes, ProComps, Rubicon Express Monotubes, and any remote reservoir shock. Generally speaking, most of these hydraulic shocks ride better than a gas (nitrogen) charged shock. Notable exceptions include the Rancho R5000 and ProComp ES-3000 hydraulic shocks which are as stiff as the stiffest gas-charged shocks. The Rancho R5000 and ProComp ES-3000 shocks are so stiff because their manufacturers valved them for heavier vehicles and don't make versions valved for the lighter Jeep.
Hope this clarifies the hydraulic vs. gas charged shock thing.