how do i loosen the 19mm nut on my omni coilovers
its really hard to get off, do i really need air tools

 

With airtools you won't have to worry about the rest of the piston spinning since it will have enough torque to overcome that.. if you don't have airtools you will need to make sure you hold the whole assembly so it can't move.. might be a job for you and a buddy. Its been a while since I did mine so bear with me haha. Also, remember when adjusting the ride height the 19mm nut has to be loose! It took me a while to figure that out haha