Some trivia from Jim Carter Truck Parts:
On the Advanced Design Pickups and larger trucks, the battery was under the passenger side of the cab floor. To protect the battery from road debris (gravel, sand and ice) it was important that it be protected from this coming from the right front tire.
Designers of the Chevrolet and GMC installed the Chevrolet / GMC Battery Shields; a metal plate riveted in place. A simple extra to what might have been a problem to customers.
(On the 1946 and older trucks the batteries were protected by the front of their battery tray being wider at the front.)
1950 GMC 1 Ton
