Bill - That NAPA number comes up as fitting 3/4 & 1 ton trucks, not the 1/2 ton (3100), even though when I did the search on their site specifically looking for 3100 parts - argh!

I purchased my replacement hoses for my ‘51 3100 from Classic Parts under their Part# 71-307.

Same hose for both front wheels and rear center flex line from frame hardline to axle mounted junction.

~ Dan
1951 Chevy 3 window 3100
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"My Grandpa Carl's Truck and How it Became Mine"
1966 Chevelle (Wife's Hot Rod) | 2013 Chevy Silverado (Current daily driver)
US Army MSG Retired (1977-1998) | Com Fac Maint Lead Tech Retired (1998-2021)