Thanks for the info guys! I say I want to use air shock cause I've already started the suspension using c4 parts. Installed the front crossmember and suspension components on the front last weekend. I used the factory c4 crossmeber instead of going with an after market one just to be able to say I did it I guess. I agree range of adjustment with the bags which is why I'm hoping to get or find info on air shocks.... I know they don't have as much adjustment in them but it would Make thinks mUch cleaner looking to be able to put them in the factory shock mounts ( the lower mount anyway).