Thought they got the power box by '88?
If there are fusible links then it will have a yellow wire going to FP Relay, EEC relay also has yellow wire but separate fusible link.
The Fuel pump power is a Blue 20ga fusible link, same for the EEC relay
Battery---(red wire)-----blue 20ga fusible link-----(yellow wire)--------FP relay
You can replace it with a 30amp in-line fuse, if fusible links are not available, DO NOT run it unfused, if pump has a short and heats up you could have a VERY BAD DAY......................although you would have come up with a very easy way to remove the bed of the truck, and part of the cab as well
Last edited by RonD; 07-13-2014 at 12:34 PM.