2004 F-150 supercrew FX4 with leather, 20K miles

When I accelerate or decelerate my seats "give" a little.
Sort of rock back or forth. Is this normal?
My mechanic, not a Ford dealership mechanic, says no way.
Think I should take this in for a warranty repair?

And while Im on that idea - if I have a warranty repair, am I obligated to take
it to the dealership where I bought it?

 

The driver seat in my truck is a power seat and it does not move at all. Yes, take it in to the dealership to have that checked out.

You are not obligated to take your truck to the dealership where you purchased it for a warranty repair. Any Ford dealership will do the repair.

I always take mine to the dealerhsip where I bought my truck just because I was there countless hours haggling on the price of the truck, so all the sales reps know me on a first name basis when I walk in. If I have a problem with the truck, the sales manager always makes sure that the service department is taking care of me.

For example, I took my truck in for some warrany work last winter. I knew it wouldn't take long for them to do the repair, just a couple hours, so I waited. As I was waiting, I walked into the showroom to look at what vehicles they had sitting in there. The sales manager saw me and asked what I was there for. I told him what was being done. He said that if I wanted to go grab a bite to eat or do some shopping while I was waiting, I could take his truck. I didn't, but it was a very nice gesture on his part.

I guess what I'm saying is that the sales reps at the dealership where I bought the truck have taken good care of me and the service dept has been good as well. So, even though they aren't the closest dealership to me, I keep going to that one.

But, you can go to any Ford dealership you want. I hope you find one that treats you just as well.