OER RD1007 Features:

Replacement style fuel tank vent hose set with clamps and adapter to replace your original vent hose or adapt a 1973-77 First Design fuel filler neck to a second design 1977-78 Chevrolet Blazer, GMC Jimmy, and Suburban model. The second design stamped steel fuel filler neck with 5/8" vent pipe is no longer available. This convenient set of hoses and clamps will allow you to use the first design neck (TC3316 - with 1/2" vent pipe) on your later second design truck (with 5/8" vent pipe). Includes the proper length of 5/8" I.D. hose with 4 hose clamps and a 1/2" to 5/8" adapter. Can also use as a replacement vent hose for your original second design filler neck, but the adapter will not be needed on the 1977-78 trucks when using the original neck.