Some GMCs had a bolt there for the oil filter return. However, it had a threaded hose fitting. Never seen one like Bart posted or seen one on a Chevy.


"It's just a phase. He'll grow out of it." Mama, 1964

1956 Chevy 1/2-ton 3100
1953 Chevy 6100 "The Yard dog"
1954 GMC Suburban Now with a new proud owner.