Cab stuff should be the same for 3/4 ton as for 1/2 ton. LMC and I believe Chevy Duty both list the longer box sides and splash aprons for the big guys. Either or, it's YOUR truck, so if you love it and think it's a worthwhile project, GO FOR IT!! As far as I'm concerned, the more old trucks (and cars) we save from the scrap heap, the better!
Regards,
Wannabe
