I compiled a listing of Suburban Wheelbases a few years ago - the early years so I could figure out what I would be able to use as far as years were concerned when working on a 1936 suburban.
35..36 suburbans are 112.5" - Owners manuals
37..38 suburbans are 112" - Owners manuals
39..40 suburbans are 113.5" - Owners manuals
41..46 suburbans are 113" - Chevy Truck ID#'s 46..72
47..55.1 suburbans are 116" - ditto
55.2..66 sububans are 115" - ditto
67..72 suburbans are 127" - ditto
73..91 suburbans are 129.5" - Owners manuals
92..?? suburbans are 131.5" - Service manuals
Splash - if you have verification of your 137" measurement . . . you either have a very special truck OR my sources are bad.
