-3/8-18 NPTF-, all V8, Chevrolet small block, with factory gauges & aftermarket or 1981-up cylinder... see more-3/8-18 NPTF-, all V8, Chevrolet small block, with factory gauges & aftermarket or 1981-up cylinder heads which have a smaller sending unit hole (correct resistance and connection, produces accurate gauge display)
switch to Dash Harness, all manual transmission (solders directly to terminals on switch assembly)switch to Dash Harness, all manual transmission (solders directly to terminals on switch assembly)