Bronco II 2WD V6-177 2.9L (1986)
Cross-Member: Customer Interest
Driveline - Vibration or Shudder On Acceleration
Article No. 89-23-12
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DRIVELINE - VIBRATION OR SHUDDER DURING ACCELERATION FROM START-UP - 4X4 SUPERCAB MODELS
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VIBRATION OR SHUDDER-DURING ACCELERATION FROM START-UP - 4X4 SUPERCAB MODELS
LIGHT TRUCK:
1986-88 RANGER
This TSB article is being republished in its entirety to provide more detailed instructions for installing the new crossmember assembly.
ISSUE:
A vibration or shudder during acceleration from start-up may be caused by excessive driveshaft operating angles.
ACTION:
Install a new center bearing frame crossmember and bracket assembly. Refer to the following procedure for service details.
1.
Remove the driveshaft from the truck. Refer to the appropriate model year Ranger Shop Manual, Section 15-61.
2.
Remove the rivets from center bearing crossmember by drilling into rivet heads and chiseling off the heads.
CAUTION:
DO NOT USE A CUTTING TORCH. A CUTTING TORCH MAY DAMAGE THE FRAME.
3.
Install the new crossmember Assembly (E9TZ-5A051-B) as follows:
a.
Line ream the attaching holes in the crossmember and frame to allow installation of (4) 7/16" bolts.
b.
Free holes of burrs after reaming to allow bolt head and nut to seat properly.
c.
Install (4) 7/16" bolts with (1) flat washer under each nut and (1) flat washer under each bolt head.
4.
Tighten the four (4) bolts to 27-37 lb.ft. (37-50 N-m).
5.
Re-install the driveshaft.
6.
Tighten the eight (8) new M-12 mm bolts (N800594-S100) at the axle and transfer case ends of the driveshaft to 61-87 lb.ft. (83-118 N-m).
7.
Re-install the attaching bolts and nuts at the driveshaft center bearing. Tighten to 27-37 lb.ft. (37-50 N-m).
8.
Make sure the insulator rubber has not been deformed or twisted while tightening the center bearing attaching nuts and bolts.
PART NUMBER
PART NAME
CLASS
E9TZ-5A051-B
Crossmember Assembly
C
58654-S2
Bolt (7/16-14 x 1-1/4", 4
S
Req.)
N800594-S100
Bolt (M-12 mm, 8 Req.)
AM
380079-S2
Washer (7/16", 8 Req.)
S
34988-S100
Nut (7/16", 4 Req.)
C
OTHER APPLICABLE ARTICLES:
None
SUPERSEDES:
89-14-20
WARRANTY STATUS:
Eligible Under Basic Warranty Coverage
OPERATION DESCRIPTION
TIME
892312A
Install Crossmember
1.8 Hrs.
DEALER CODING
BASIC PART NO. CONDITION CODE
5A051
67
OASIS CODES:
5950, 7210, 7211