[lennyrebel]

Yes there are 2 frost plugs at the back of 318. You have to drop transmission. They are relatively low on back of block so if you use engine flush or anything like that it lays their and corrodes through frost plug. When I found mine I was replacing transmission so I sort of discovered by accident. I made frost plugs out of 2 block heaters with the o -ring around plug body. Much easier to tighten screw when installing then trying to drive steel bung in. I cut off heater portion. Did I say I was working at Chrysler then and they helped with parts. Regards lennyrebel