I have a 2007 F-350 4 door Lariat FX4 Dually. It has 46,000 miles on it & yesterday went into the shop & has to have the WHOLE rear end replaced.

I travel for my job & have pulled my travel trailer 4 times. A total of 4,000 mile outta the 46,000 the truck has pulled something. I have airbags, a triple dog, a AFE cold air & I am thinking this rear end should not have gone out. I also just had to pay to replace the TBC. I am wondering if anyone else is having or had similar problems. Sorry for the long list I am just trying to find out if this is common or if I need a new truck since EVERY repair is coming out of my pocket.

Thanks