Re: 89 f150 2wd 300ci 5speed clutch
He may have been mistaken. I know that in the VIN you should be able to check the Plant, braketype, GVWR class, restraint system, Line series, engine type, model year, world manufacturer ID andalso production sequence number.
I do know that in the 70s and early 80s models they had a Check digit in the lock face of the drivers door. You should be able to find your axle code there as well. The later 80s models I am not sure of.