Mark VII V8-302 5.0L HO (1986)
Case: Technical Service Bulletins
A/T - AOD Case Thread Update
TRANSMISSION - AOD - CASE BOLT HOLE SIZE CHANGE
Article No. 89-9-12
FORD:
1986-88 CROWN VICTORIA 1986 LTD 1986-88 MUSTANG, THUNDERBIRD
LINCOLN-MERCURY: 1986 CAPRI 1986-87 CONTINENTAL 1986-88 COUGAR, GRAND MARQUIS, MARK VII 1986 MARQUIS 1986-88
TOWN CAR
LIGHT TRUCK:
1986-88 BRONCO, ECONOLINE, F-150, F-250, F-350
ISSUE:
The 1989 model year "AOD" transmission case threads are different from prior model year cases. Prior model year transmission cases use a
5/16"-18 thread. 1989 model year transmission cases use a M10-1.5 thread. The larger M10-1.5 bolts will not pass through the prior model
year converter plate, transmission brace or engine cover plate.
FIGURE 1
ACTION:
If a transmission case replacement is required on a past model vehicle, the bolt holes for the car's transmission brace and converter cover
plate will need to be enlarged with a 1/2" drill. On light trucks, enlarge the converter cover plate and engine cover plate with a 1/2" drill.
Refer to Figure 1 for the bolt hole locations.
OTHER APPLICABLE ARTICLES: None
WARRANTY STATUS: INFORMATION ONLY
OASIS CODES:
5800
