One cover has a single 1.25" diameter hole, the other has a 1.25" diameter hole and a second hole for a twist-in cap. Both are low profile (to fit models with air conditioning and power brake boosters) and feature excellent chrome-plating. Baffled.
Authentic reproduction of the original GM product.
Find in OPGI's 2018 El Camino Catalog page 131.
This product can expose you to chemicals including lead, sulfur, nickel, chromium, vanadium, titanium, polyvinyl chloride, and 4,4’-methylenebis (2-chloroaniline), which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.