GMC also had full width front fenders on some trucks, one school bus, one on normal truck. Handy when converting to full width front 4wd axle. Never found any ID marks on vehicle?
Never saw on small trucks, only 1.5 ton and larger with 20” wheels.

Ed

Last edited by EdPruss; 09/27/2024 3:51 AM.

'37 GMC T-18 w/ DD 4-53T, RTO-610, 6231 aux., '95 GMC running gear, full disc brakes, power steering, 22.5 wheels and tires.
'47 GMC 1 ton w/ 302, NP-540, 4wd, full width Blazer front axle.
'54 GMC 630 w/ 503 gasser, 5 speed, ex fire truck, shortened WB 4', install 8' bed.
'55 GMC 370 w/270, 420 4 speed, grain, dump bed truck from ND. Works OK.