Ranger cams are all rollers from late 88 up. All EFI 2.3/2.5L cams are interchangeable. All followers are interchangeable thru 1994. They changed the followers in 95 to fit the narrower valve stems. Followers after 95 will not fit the earlier 2.3 engine. You can mix the followers on a roller camshaft, but not on a slider follower. I have a roller and followers for sale in classifieds. jim d