Westhold Rechargeable Transponder (10 Pack) 21970 150 / 400 lb/in Spring

150 / 400 lb/in Spring Rate

and greaseable pivot points for easy maintenance

1979-1984 GMC C1500

Fits 82 and later 700R4/4L60E

Westhold Rechargeable Transponder (10 Pack) 21970 150 / 400 lb/in SpringEach Westhold transponder has a unique serial number that identifies exactly which competitor is crossing the start finish line, or any other timing point on a course. Unlike standard RFIDs, Westhold's transponders have an ultra high data rate (1mbit sec) at HF (3 30MHz) frequencies. Because the high data rate generates many data points, the system is able to more accurately determine when a transponder crosses the center line of the start finish.