Driveshaft Slip Yoke - Driveline Clunk
83ford10Article No. 83-16-23
NOISE - DRIVELINE CLUNK - AUTOMATIC TRANSMISSION/ONE-PIECE DRIVESHAFT
LIGHT TRUCKS 1981-83 E & F100-350
A driveline clunk/grunt noise at start-up and stop driving modes on some 1981-1983 light truck vehicles, equipped with one-piece driveshafts and C4, C5, C6 or AOD automatic transmissions, may be caused by slip yoke bind-up. To service this condition, perform the following procedure:
^ Raise the vehicle on a hoist.
^ Remove the driveshaft assembly.
NOTE: Mark the driveshaft in relation to the companion flange as it must be reinstalled in its original position.
^ Inspect extension housing seal and replace as required.
^ Remove (and discard) slip yoke from the driveshaft.
^ Using the following chart, install a replacement slip yoke (blind spline) on the driveshaft. Grease the slip yoke 360~ with ESA-M1C75-B multi-purpose long life lubricant.
NOTE: Complete lubricant coverage (no dry spots on spline) is necessary to ensure proper break-in and prevention of recurring clunk.
^ Reinstall driveshaft and torque U-bolts 8-15 ft.lbs.
^ Road test.
NOTE: Vehicle should reach normal operating temperature during road test in order to properly check transmission oil level. Add transmission fluid, as required, per Shop Manual Section 17-01.
CONSULT THE APPROPRIATE MODEL YEAR LIGHT TRUCK SHOP MANUAL WHEN PERFORMING THE ABOVE OPERATIONS.
PART NUMBER PART NAME CLASS
E1TZ-4841-B Slip Yoke C4, 5, AOD 28T BM
E1TZ-4841-C Slip Yoke C6 BM
(except E250/350) 31T
D5UZ-4841-A Slip Yoke C6 (E250/350) 31T C
C1AZ-19590-B Lubricant - ESA-M1C75-B AG
OTHER APPLICABLE ARTICLES: None
WARRANTY STATUS: Reimbursable within the provisions of the Warranty and Policy Manual.
OPERATION/TIME: Refer to the Labor Time Standards Manual for applicable operation and time.
DLR. CODING: Basic Part No. 4841 Code: 41