So I got my truck all up and running again. Had a local shop do the fuel pump work because I just plain didn't have time. Had them change the diff fluid, tranny fluid, and all that at the same time. I have been driving the truck to and from work for the past week and a half or so. But today I pull up at work and noticed that the right rear hub area has a light amount of smoke coming from behind the wheel. Being dressed for work and all, I didn't have time to get all under the truck, pull the wheel, etc. But does anyone have ideas on this? Could it be caliper or disc related? I have noticed a light pulsing in the brake pedal, but I just figured warped rotors were likely the problem there. Ideas? I'd like to pull the fill plug on the rear diff, but haven't been able to yet. Anyone on this?