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|9.75 TRACTION-LOK REAR AXLE – CHATTER/SHUDDER/VIBRATION ON SLOW TURNS – BUILT ON OR BEFORE 3/5/2012
|Publication Date: July 24, 2015
This article supersedes TSB 14-0185 to update the Part List, Service Procedure and Service Labor Time Standards.
Some 2009-2012 F-150 vehicles built on or before 3/5/2012 equipped with a 9.75 traction-lok rear axle assembly may exhibit a shudder, chatter and/or vibration during slow, tight turns. This concern may be more noticeable after cold startup and less noticeable once the rear axle fluid warms up.
Follow the Service Procedure steps to correct the condition.
Make sure the vehicle is equipped with the original equipment 9.75 traction-lok rear axle assembly before making repairs.
- Install the axle vent service kit. Refer to the instruction sheet included in the parts kit.
- Install the traction-lok rear axle clutch pack replacement kit. Refer to the instruction sheet included in the parts kit.
|Clutch Pack Replacement Kit
|Motorcraft SAE 75W-140 Synthetic Rear Axle Lubricant
|Motorcraft Additive Friction Modifier
|Motorcraft Silicone Gasket and Sealant
|Vent Tube Kit
|Motorcraft Premium Long-Life Grease
|2009-2012 F-150: Install Axle Vent Service Kit And Replace Rear Axle Limited-Slip Clutch Packs Following The Service Procedure (Do Not Use With Any Other Labor Operation)
Eligible Under Provisions Of New Vehicle Limited Warranty Coverage.
Warranty/ESP coverage limits/policies/prior approvals are not altered by a TSB. Warranty/ESP coverage limits are determined by the identified causal part and verified using the OASIS part coverage tool.
|BASIC PART NO.