Hopefully when you installed a new crank sensor you went with Mopar since many aftermarket brands are known to cause problems. You may want to make sure your horn works then switch the horn relay with the fuel pump relay in the PDC which is the black fuse/relay box in your engine compartment.
But the fact you've always had to prime the pump by turning it on-off-on-off may indicate a bad pump and Airtex sure doesn't have a very good reputation. Most on here consider them junk.
Here's a brand new Bosch 67649 fuel pump module for your 98 on ebay where the bid is up to $85 and the bidding closes Sat night. If you don't have an ebay account they're easy to open along with a paypal account at the same time. Believe I'd throw a bid at it for about $95 and with $16 shipping total cost would be $111.
Bosch is OE and if you bought a Mopar one at the dealer it would be the exact same thing repackaged for about 3X the cost. They run cool and quiet while coming with the top filter and a tank seal if still in the box.
Normally I can find the new Bosch 67649 module on ebay for about $120 w/free shipping but I'm not finding it through the reputable vendors like eherko or alansdeals. Believe I'd try the bid one and good luck!
PS. Next lowest price for the 67649 is Amazon but it's $170 so I'd try the ebay unit.