Discovery I (LJ) V8-4.0L (1996)
speed when operating with one shaft only. These other vibrations can be disregarded.
*5
Measure drive flange runout using a dial indicator at the points indicated in figure 1.
*6
A decoupled driveshaft can be identified by having a rubber flex joint at the differential end.
*7
To fit the cross joint type driveshaft, the differential drive flange must be replaced. Before fitting the new flange, slip the spacer over the pinion.
Failure to fit the spacer will result in bearing damage.
*8
The differential nose angle is the relationship of the differential to the frame. Measure the nose angle with a Craftsman protractor (part# 939840)
or equivalent as follows:
a.
Place EAS in standard ride height. Road wheels must be on ground.
b.
Measure the angle at the bottom of the frame, mid way between the axles.
c.
Measure the angle across the face of the differential drive flange (driveshaft removed).
d.
Subtract the frame angle from the flange angle to arrive at the nose angle.
The flowchart is a step by step process of how to accurately diagnose and fix the vibration issue. Included are some notes and comments to aid in the
diagnosis and repair.
This procedure compliments bulletin 76/15/95/US "Body Noise, Vibration, and Harshness."
ACTION REQUIRED
Upon customer complaint of vibration noise at low or high speeds follow diagnosis and procedure below.
PARTS INFORMATION
FRC 8641 Front Discovery Driveshaft
FRC 8387 Rear Discovery Driveshaft
FRC 9542 Front Range Rover Classic Driveshaft
FRC 8389 Rear Range Rover Classic Driveshaft
FRC 3002 Driveshaft Flange, Discovery and Classic
539745 Pinion Spacer, Discovery and Classic
Procedure
Service Advisor Prompts
^
Has the vibration always been present or did it occur after a certain event? What was the event?
^
What vehicle speed(s) does the vibration(s) occur?
^
What engine rpm(s) does the vibration(s) occur?
^
Does it occur while accelerating, coasting or cruising?