big_truxx
1/2 ton status
There is actually someone who makes an adapter for the 14ff that allows you to use another axle behind it. http://www.usa6x6.com I was thinkin maybe about using a 14ff short for dual setup so I could put tandem axles in and be using both of them in a crew cab dually 

I assume the suburban must use the same wheel tubs,or at least similar to the ones on a fleetside pickup bed...