Suburban Tub differences

[catch2otwo]

Does anyone have info on the differences between the body years for the suburbans? The front clip info is easy to find but Im looking for info on the rest of the tub, mainly the roof. I picked up an 88 to rob some parts from for my 73. Wondering if Ill be able to use the roof from the 88 to replace my 73, or if my 73 doors and tailgate will fit the 88 tub.

Just eyeballing it, the 88 roof has a slightly different shape, but overall the tubs look the same. If I can find time I will pull a door off the 73 and see how it fits on the 88 tub.