If you are blowing oil out of your transmission or rear end vent line, 
you need a JOES baffled Vent Tank. Equipped with a filter to keep dirt 
out of your lubricant and ¼” NPT pipe threads or -8 AN at the bottom for
 your vent line. JOES Vent Tank available for 1½” or 1¾” tube mounting 
and flat sheet metal mounting.