Cab interchange

[ralphhemi]

Greetings everyone  I just bought a 73 cab & doors , it  was an automatic is their much difference in 78 K30 cab?  One thing I noticed the transmission  hump on the 73 was all part of the floor pan. 

[zieg85]

Automatics are like that while 4x4's and 4 speeds have the bolt in hump back then.  The doors/door pads are different in the 73 and no power windows were offered with that door design.  Other than that everything else should line up nicely