The Breather Cover/oil Pan ('80-'81 is made up of components including this Pan-oil which is the most expensive.
In this schematic the "Bolt,flanged,6x25" is used most often.
A sample from the products for the Breather Cover/oil Pan ('80-'81 include: Screw-pan Head,6x40, Oil Seal,tb13225.5, Gasket,drain Plug Bol (nas), O Ring,8mm.
