I am wondering about tank size... how much of your tank are you using to completely lift your car? please include how much your tanks hold (gallons).

if you could do an experiment on how much you load your tanks with and then how much you have left after lifting your cars.

I am debating on what size tank to use, id like to use just a pancake for the rears until i do the fronts then i will upgrade to a 5gallon hidden underneath and then use the pancake as just a nother spare resevoir or for train horns. I love the idea of the pancake though.

you need a 5 gallon.

3 or 4 gallon is enough 5 gal even better but if your installing it under the car its hard to fit. ..

What struts are you using. WE sell the New AirREX suspension at www.forjworks.com . It a coil over type and it will go the lowest in the market. We are also Scion Life site vendors.. if you need any parts let me know.

http://www.facebook.com/AirRexAirSuspension
http://airrex-usa.com/