You need to inspect the caliper pistons on the right caliper. There have been some problems with the pistons cracking/chipping. This could cause the brake on that wheel to not release completely. Don't worry about a idler/pittman arm since there aren't any on the Armada. (rack and pinion steering don't use them)
This is a problem that need attention now. Correct it before it causes more damage. If you aren't confortable doing the work yourself take it to someone you trust. If it is piston failure it should still be covered under warranty..
This is a problem that need attention now. Correct it before it causes more damage. If you aren't confortable doing the work yourself take it to someone you trust. If it is piston failure it should still be covered under warranty..