I have an LN3 3800 out of a 90 Buick lesabre. I just have the engine, idk if it was real wheel or front w/d. I ordered a kit that came with 1 1/2in core plugs that felt kind of loose. The cam and balance shaft plugs were wrong too. Would anyone happen to know the sizes? I checked Napa and o'rileys and they only have the core plugs and they said they were 1 9/16in...now I'm just confused. Made the mistake of throwing the old ones away.