That and make sure it is torqued down properly

 

i havent looked at em much but you can reach grabe the shock an move it back an forth

 

Replace the shocks. And make sure you torque them tight like dlyter mentioned. Can't remember how much, so shcek service manual.

Also you mentioned 325 tires. That is oversized, so it will not be helpful to your transmission, and your speedometer will be off (read slower than you are running). A trooper will likey to point that out to you at some point. Mine was off by about 10% with 285's on it.

Just to ask again something that someone else asked....what fluid did you use. These take ATF+4 only.