Actually I have great credit, almost 800 score. Audi was charging me around 4% on both of my cars. One loan was through Chase Do you get a loan through the credit union and have them contact the dealer to complete payment? I've always done my financing at the dealership because it's easy.
Ya, don't let the dealer handle shit. Sorry, I didn't mean to offend on the credit score thing actually - that came off a bit too snide. What the other guy said. You get pre-approved at the amount you'll need with your credit union. Then get final out the door amount from your dealer and your credit union will cut a check for the amount. Mine will actually overnight the payment or give me a cashier's check to take in with me.
The only time you might not want to do this is if the dealer is offering some type of a cash-back incentive for using Ford Motor Credit. I was looking at a 2016 platinum before and they were offering $1000 more off the truck if I used Ford Credit. If I was going to buy that platinum I'd go ahead and go through Ford credit to get the $1k discount. Then the next day I'd go refinance it through my credit union at their rate (because the ford credit rate was stupidly high to get the discount).
However that doesn't apply on the raptor. There won't be any cashback incentives, even for using Ford Credit. So remove them from the financing equation and go only through your credit union.