You'll have to check the thickness of the rotor. It's usually stamped
in the inside what the minimum thickness is. Some rotors can be
turned, while others are throw aways.. Ceramic pads are harder than
semi-metallic pads. They have less dust too. It might be cheaper just
to purchase new rotors. If they are warped turning them may take the
warp out, but it may return over time. I'm sure the pads he threw on
were probably an inexpensive set.

If the rotors are warped, get new rotors.  Don't cost much.
Go with ceramic pads.  They wear longer, don't heat as quickly, and
usually squeal less.  But some say they are harder on rotors.
Brakes are easy to keep up, including pad changes.
Unless rotors are warped or deeply cut, just reuse them.
We never turned rotors for our family cars.  The ones that got warped
or deeply cut were replaced with new ones.
Chevys.  New rotors run about 20 bucks.  The F-150 rotors should be
maybe 30-40 bucks.

--Vic

Dont use the bottom of the line pads.  Ceramics, or whateverthehell the
upper level
pads are, can be worth the money.

You have to measure the rotors.  Take them to the machine shop and ask them.
There is no use to replace a rotor that can be machined smooth and
parallel....BUT
dont let any jakeleg use a f***ing impact wrench on your lugs...  Clean the
lugs, the
surfaces, etc, before you install new or machined rotors.

I have a Dodge truck that has plenty of beef to machine... Only time I have
had any
problems is when shitteauxx tire companies rotate and use impace
wrenches...even
with TorqStix... Use a torque wrench.

Sometimes it IS cheaper to change the rotor or caliper but not EVERY time..
Study
the problem.

Honestly, on a work truck, I don't care if the rotors are warped as long
as I know it has friction material and it's gonna stop.

On the rotors you are gonna find a "machine to" spec stamped/cast into
'em. Thinner than that and you need new rotors (gotta set of calipers or
a mic? Go measure.).

I have had great luck rebuilding Ford calipers in my garage with a hone
and emery paper. I have even gotten good enough to reuse the rubber seal.

The trick to even brake pad wear is in the caliper's sliding action. If
it doesn't slide, you are going to wear the inner pad.

In situations where the vehicle is not worthy of a $500 brake overhaul
(parts cost), I use "groovy" rotors and cheap pads (and rebuild/cleanup
the calipers).

Ceramic pads are great if you are using "all new" everything. Most of
the time I am keeping rolling junk on the road so "new everything" does
not apply.