A/T - 404/413/415/470 Changes For 1986
SIL 85-29Subject: 404/413/415/470
Changes for 1986 are as follows:
2.2 LITRE CASE
The engine starter mounting has been revised. The new case has one threaded and two drilled holes instead of three threaded holes for starter mounting. A casting revision was required in the starter pocket area. New case is not interchangeable with prior years.
New P/N Old P/N
4348978 4269656 Case (1.8-2.2-2.5L)
4348976 4269720 Case Assembly
INNER PUMP GEAR
The torque converter drive hub was redesigned to have two flats instead of two slots. The new pump gear has flats instead of two lugs and is not interchangeable with prior year parts. A new oil pump assembly incorporating the new gear is required for service.
New P/N Old P/N
4377996 4207217 Oil Pump Assembly
INPUT SHAFT AND REACTION SHAFT STRUCTURE CHANGE
The input shaft, reaction shaft, and reaction shaft support have been redesigned. Following is a description of the parts that changed:
REACTION SHAFT SUPPORT
Bushing now located in the support instead of in the shaft.
REACTION SHAFT
Seal ring bore size increased and the bushing moved to the support.
BUSHING
Larger outside diameter, shorter length, and larger diameter finished bore.
SUPPORT ASSEMBLY
New assembly incorporating the above changes is not interchangeable with previous models.
New P/N Old P/N
4377120 5222412
INPUT SHAFT
A second seal ring groove has been added, the bushing journal diameter was also increased.
New P/N Old P/N Remarks
4377106 5222400 Not Interchangeable
INPUT SHAFT SEAL RING
Larger diameter ring, two instead of one part per transmission.
New P/N Old P/N Remarks
4377047 4269592 Not interchangeable.