ok, the original filter size is supposed to be 5/8th, and thats the Crosland one (that has a 5/8th in. thread) ive been buying for a direct fit .
It looks like I need to get the 5/8th to 3/4th threaded adapter in order to get any of these aforementioned filters, since they are all 3/4th in. thread...Am I correct? I remember opening up EVERY purolator filter in Pep Boys the other year, and none of them were 5/8th in. thread, they were all 3/4th...