I have been reading about the 14 bolt axles and i am considering swaping one onto my 40 eventually. i read that if you narrow one side u can use two short inners to get the offset diff. so im assuming that a regular 14 bolt has different length inners? or do you get an inner from a dually axle? any info would be greatly apreciated. if i got to the wrecking yard i want to know what i need to look for. thanks guys.