Brothers creativity has resulted in an easy underbed gas tank conversion for your 1963-1966 Chevrolet or GMC trucks. By using our popular blazer/suburban gas tank, Brothers has been able to put together this inexpensive kit. The kit comes complete with the tank, mounting straps, 0-30 ohm (early Chevy) sending unit, sending unit lock ring, and fittings. Note: this kit includes a newly developed sending unit that will work with original style gauges or Brothers after-market gauge set. This tank is a top-fill kit only. 17gal capacity.