Just make sure it's a "new" diaphram made with modern materials...the old rubber doesn't like the E15 gas we get these days (which is most likely what did your existing pump in).
Mike B
Mike Boteler
1956 Chevy 3100 Resto Rod 1952 Willys M38 Army Jeep 1983 Jeep CJ7 Laredo 1984 Jeep CJ7 +++++ Silver Spring, MD