Maybe something is different on my '85?, but neither the Donaldson or CAT fit on my housing without grinding.

Honestly, the Baldwin I used may require grinding too, but I can't tell because I had already done a small amount of grinding trying to make the CAT & Donaldson fit.

I searched through 10 pages of threads under "fuel filter" because I didn't want to duplicate, wish I'd seen yours before making this one.