My library tells me the PRR X32 d was a rebuild from earlier X32 B and C cars. with the most obvious external change being a double door car was made into a single door car. Now that it has just one door (just like the original X32), other than the roof contour, are there any other differences between the original X32 and the X32 D? Also, did all the X32 cars use an identical underframe design?
