Dimensions when deflated.....

[spl_dodge]

I am in the process of building a custom street rod truck. It is a 1951 Ford F-1 pickup. I plan on stretching the rear fenders and bed to accomodate tandem axles.

It will look like this when I am done:
http://images.cardomain.com/member_img_a/151000-151999/151692_56_full.gif

I am designing a custom made frame that will allow me to lay body without having to cut up the floor of the truck. I plan on using a mustang II front cross member kit withtubular arms and bags up front. I plan on welding the rear axles together using a plate that will double as bag mounts on the rear axles.

My first question is:

Can I just use 2 bags for both axles in the rear, or do I HAVE to go with 2 bags per axle back there?

Second question:

What size bags would be recommended for this application? 1500# 2500# or ?????

Last question: (two part)

The place that will supply me with the mustang II cross member tells me that there kit will place the bottom of their cross member 5" below the bottom of my frame (2" x 4" steel tubing). Since I am using tubular style arms with bag mounts, where would that put the center of my hub (in relation to the bottom of the frame) when the bags are aired out?
Also on the rear, how much room do I need to allow for the bags in relation to the frame - again when aired out?

I hope my questions are clear, if not, I will be happy to clear up any cloudy area that I can....

Thanks in advance.

Kevin Andrews
Winder, GA

[spl_dodge]

Why is my image not showing up???

[darren@ridetech.com]

Ya know, you shouldn' t need any extra bags. You are not picking up hardly any extra weight, 2 F9000s should be sufficient.
Usually when setting up a MII front clip you will try to get the lower control parallel with the ground @ ride height. Then you will be able to deflate the vehicle about 3" when fully deflated. So if you can get the distance from the control arm bolt hole to the bottom of the crossmember and the distance from the center of the ball joint to the center of the spindle we should be able to figure it out. Hope that helps.