Ford Falcon. Manual — part 42

205-01-2 Driveshaft 205-01-2

SPECIFICATIONS

Two Piece General Specifications

Description

Specification

Constant velocity joint

Supplied in CV Kit

grease
Constant velocity joint

262 Loctite

loctite for bolts

Two Piece Torque Specifications

Description

Nm

Centre bearing bolts (x2)

36 (

±7)

Constant velocity joint bolts (x6)

72 (

±13)

Flexible coupling nuts / bolts (x6)

77

End yoke lock nut (x1)

157 (

±20)

Single Piece Torque Specifications

Description

Nm

Single piece U/J comp

82.5 (

±7.5)

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205-01-3 Driveshaft 205-01-3

DESCRIPTION AND OPERATION

Driveshaft

The driveshaft is the means of transferring power from

the engine to the differential in the rear axle and then

to the rear wheels. The two piece Drive shaft in

corporates a flex coupling (with slip flange) centre

bearing, a universal joint and a constant velocity joint

with the ability to plunge. The single piece Drive shaft

incorporates two Universal joint mounted at each end.

The plunging CV (two piece) (& to some degree, the

slip splines) allows lateral movement of the driveshaft

components & assembly as the diff moves up & down.

CAUTION: All driveshafts are balanced. If the

vehicle is to be undercoated, cover the driveshaft

to prevent application of the undercoating

material.

Universal Joints

The single center joint is:

a lubed-for-life design that requires no periodic

lubrication.
equipped with nylon thrust washers, located at the

base of each bearing cup, which control end play,

position the needle bearings and improve grease

movement.

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205-01-4 Driveshaft 205-01-4

DIAGNOSIS AND TESTING

Driveshaft

Inspection and Verification

Driveline Vibrations

Characteristics of driveline vibrations:

high frequency.
worse on acceleration or rapid deceleration.
usually described as a ‘droning’ noise.
often more noticeable from the rear seat of the

vehicle.

Driveline vibrations can originate from wear of

bearings or damage to the driveshaft.
Damage and wear may produce vibrations due to the

fact that the components will be rotating on a centre

other than the centre of balance.

Driveshaft Inspection

Driveshaft Runout
The driveshaft runout is measured at the centre of the

shaft and at 130 mm from the weld at each end.
NOTE: Be careful not to offset shaft at centre bearing.

Maximum Runout Specification

Driveshaft in vehicle . . . . . . Not Recommended
Driveshaft mounted on centres . . . . 0.42 (Ends)

0.35 (Middle) mm

Driveshaft Balance

The driveshaft balance specification is 9 gm. cm at

3200 rpm. The light side is marked with yellow paint

on the rear yoke.

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205-01-5 Driveshaft 205-01-5

DIAGNOSIS AND TESTING (Continued)

Symptom Chart

Symptom Chart

Condition

Source

Action

Driveline vibration

Axle flange and driveshaft yellow paint

Remove/Repair as required.

marks not aligned.
Undercoating or other foreign material
on shaft.
Universal joint strap/flange bolts loose.
Universal joints worn, or lack of
lubricant.
Universal joint locating clip faces of
pinion flange damaged.
Broken rear spring centre bolt.
Broken rear spring.
Rear springs not matched (sagged to
one side).
Driveshaft damaged (bent) or out of
balance (missing balance weights).
Bearing cups improperly seated in
pinion flange.
Pinion flange run out.
W orn or dry PCV.
Eng/Trans/Diff mounts worn.
Flex coupling/coupling bolts worn.
Flex coupling bolts loose.
Centre bearing bracket bolts loose.

T/OFF Shudder

Coupling Bolts misallignment in Z.

See General Procedures "Take-Off

Shudder"

U-Joint Noise

Universal joint strap/flange bolts loose.

Remove/Repair as required.

W orn U-joints.

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