67-71 Chevy/GMC 3/8" Fuel Tank Sending Unit. This unit features a 3/8" feed line that came with trucks originally equipped with V8 engines. Kit includes the float, a screen strainer on the pick up tube along with the o-ring and retaining lock ring.

Note: Just because your truck has a V8 in it does not mean it originally came with one. You need to double check the size to see if it is a 3/8" or 5/16" line.