I'm lucky in that I've got an excellent parts counter person here at my Toyota dealership. And he and I did the starter motor contact thing oh, two years ago or so. Interesting debacle. Toyota has updated, revised, consolidated, changed, revised and replaced the starter solenoid contacts about 20 times in the run so far. You can buy them individually, in kit form, in revised form, etc.

The end result being it's a mess.

Were I you, I'd just go to Parts America or such and pick up a replacement starter and go. Stores like that usually have one on the shelf, ready to go. This is all presuming that your truck currently won't start because of the contacts.

And if for some reason you cannot get a starter motor, take the old contacts out and dress them. You can even build them up with solder if need be. You can certainly have the truck startable.