electrical problems with my '85 straight 6
 

my '85 F150 stalled out on me the other day, and wouldn't start again. it has the 300 straight 6 in it. we checked the fuses, which all looked good. we pulled a plug wire and there was no spark to the plugs when we turned it over. we took the ECM off, had it tested at the parts store, and it tested bad, so i got a new one. still no spark to the plugs. we replaced the coil. still no spark to the plugs.
i'm wondering if this is an inline fuse? don't want to pry it open if i don't need to, as its old and likely to break if i force it.
http://s739.photobucket.com/user/ott...]=1&sort=1&o=0

Would appreciate any advice