Ah, ok. Thanks for pointing out that the frame is skinnier on the dually cab & chassis trucks. The one I put a tape measure on was already torn down to just the frame. Makes sense.
Also to anyone curious, the GMT800 AAM1050 is about 1.5" longer hub face to hub face than a 4x4 GMT400 9.5sf. Which is kinda nice since the rear wheels always looked excessively "tucked-under" at the back. I realize this is by design but I like the way it looks now better.
The reason I swapped my 9.5sf for a 14FF is because I needed new drums and they are expensive. I also wanted a locker (g80) in the back. I bought a complete GMT800 AAM1050 with 65,000 KM on it (so like 38,000 Miles) for $700 Canadian. I come from big trucks, two bearings is better than one and any design where I broken axle shaft can lead to a flying wheel is not my first choice. I wouldn't swap axles for no reason but a 14ff in place of a 10 bolt is a worthwhile swap any day. Less so on a 14sf but hey it's the owners' money so whatever. Still better than $45,000 for a new crappy truck with a 4 cylinder.
Also to anyone curious, the GMT800 AAM1050 is about 1.5" longer hub face to hub face than a 4x4 GMT400 9.5sf. Which is kinda nice since the rear wheels always looked excessively "tucked-under" at the back. I realize this is by design but I like the way it looks now better.
The reason I swapped my 9.5sf for a 14FF is because I needed new drums and they are expensive. I also wanted a locker (g80) in the back. I bought a complete GMT800 AAM1050 with 65,000 KM on it (so like 38,000 Miles) for $700 Canadian. I come from big trucks, two bearings is better than one and any design where I broken axle shaft can lead to a flying wheel is not my first choice. I wouldn't swap axles for no reason but a 14ff in place of a 10 bolt is a worthwhile swap any day. Less so on a 14sf but hey it's the owners' money so whatever. Still better than $45,000 for a new crappy truck with a 4 cylinder.