- Loud Clunk in the Driveline When Shifting from Reverse to Forward
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| | | - INSPECT, REPAIR as required.
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| | - Loose or worn driveshaft components, rear axle universal joint flange attaching nut below specs.
| - RAISE vehicle, ROTATE driveshaft by hand to isolate problem as driveshaft or rear axle problem. REPAIR or REPLACE as required.
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| | - Rear axle shafts or differential.
| - REMOVE and INSPECT. REPAIR as necessary.
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| | - Inoperative shock absorbers or loose rear springs or suspension arms.
| - INSPECT, REPAIR or REPLACE as required.
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| | - Excessive backlash in axle, or transmission.
| - PERFORM total backlash check of rear axle. CHECK transmission. REFER to appropriate section of Group 07. REPAIR or REPLACE as necessary.
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| | - Insufficient lubrication.
| - ADD lubricant as required.
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- Driveline Clunk as Vehicle Starts to Move Following a Brake Stop (Two-Piece Driveshaft)
| - Loose rear spring U-bolts.
| - TIGHTEN U-bolts to specification.
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| | - Worn or galled output driveshaft and coupling shaft splines.
| - REMOVE the driveshaft from the vehicle. CLEAN the male splines and INSPECT for worn or galled splines. REPLACE if necessary.
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| | - Worn or galled driveshaft slip yoke splines.
| - CLEAN and INSPECT the female splines of the driveshaft slip yoke for worn or galled condition. REPLACE if necessary.
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| | - Damaged driveshaft slip yoke seal.
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| | - Insufficient lubrication in driveshaft slip yoke.
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| - Rear spring U-bolt loose.
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| | - Universal joint worn or improperly installed.
| - REINSTALL or REPLACE universal joint.
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| | - Coupling shaft driveshaft center bearing bracket improperly installed.
| - Correctly INSTALL driveshaft center bearing bracket and REPLACE if damaged.
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| | - Excessive runout in rear axle universal joint flange or damaged universal joint.
| - ROTATE rear axle companion flange 180 degrees and REINSTALL. RECHECK and if not acceptable, REPLACE rear axle universal joint flange or universal joint and REPAIR as required.
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| | - Excessive lateral and radial tire and wheel runout.
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| | - Excessive driveshaft runout.
| - REPLACE driveshaft or ROTATE driveshaft 180 degrees and CHECK for out-of-balance condition.
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| | - Rear axle universal joint flange out-of-balance.
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| | - Driveline and pinion angles out-of-specification.
| - ADJUST to specifications.
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| | - Binding, damaged or galled splines on driveshaft slip yoke.
| - CHECK transmission for proper lubricant, and CLEAN and LAP splines. LUBRICATE splines with Premium Long-Life Grease XG-1-C or -K or equivalent meeting Ford specification ESA-M1C75-B.
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