M/T - Hard to Shift Disengages From Third Gear

88ford09

TRANSMISSION - ZF MODEL S5-42 - HARD TO SHIFT INTO THIRD GEAR -

TRANSMISSION - ZF MODEL S5-42 - DISENGAGES THIRD GEAR

Article No. 88-8-20

LIGHT TRUCK: 1987-88 F SERIES, BRONCO

ISSUE: A hard shifting transmission during a 2-3 upshift or 4-3 downshift may be caused by a third gear synchronizer that has an improper surface finish. The hard shifting condition may also cause the transmission to disengage from third gear because of incomplete third gear engagement.

ACTION: To correct this, install a new design third gear synchronizer that was manufactured using a new machine lapping process to improve the surface finish. Refer to the 1988 Light Truck Shop Manual, Section 16-34-1 for removal and installation procedures.

PART NUMBER PART NAME CLASS

E7TZ-7124-C Third Gear Synchronizer B

OTHER APPLICABLE ARTICLES: None
WARRANTY STATUS: Eligible Under Basic Warranty and Powertrain Coverages
OPERATION: 880820A - Install third gear synchronizer
TIME: 7.6 Hrs. - F Series (4 x 2) 8.6 Hrs. - F Series (4 x 4) 8.3 Hrs. - Bronco
DLR. CODING: Basic Part No. 7124
Condition Code: 85