Review on Dorman 635-502 Engine Timing Cover: Ideal Selection for Select Models by Kevin Mariappan

Perfect for my 2002 Chevy S10 4.3 liter engine. However, be aware that installing one of these oil pans can be a daunting task unless you remove the oil pan and replace its gasket. There is a rib on the bottom of the lid that may need to be modified/removed. This applies to all of these caps, they are meant to be put on first before the pan is laid. It fits the factory cap perfectly and the leak at the base of the cap (very common on these Vortec engines) has now been fixed.