RAM 3500 Truck 2WD L6-6.7L DSL Turbo (2010)
10. Raise the vehicle again.
11. Mark the tensioner rod 6.35 mm (1/4 in.) from edge of the tensioner (2).
12. Tighten the adjusting nut (5) on the tensioner rod until the mark is no longer visible.
CAUTION: Do not loosen, or tighten the tensioner adjusting nut for any reason after completing adjustment.
13. Lower the vehicle until the rear wheels are 15-20 cm (6-8 in.) off the shop floor.
14. Release the park brake foot pedal and verify that rear wheels rotate freely without drag. Then lower the vehicle.