PL720 4WD L4-2389cc 2.4L SOHC (Z24) (1983)
Suspension Spring ( Coil / Leaf ): All Technical Service Bulletins
Rear Leaf Spring - Squeaks On Rough Roads
TS85-138
November 22, 1985
Rear Axle & Suspension
REAR SPRING SQUEAK, 4X4 720 TRUCK
APPLIED MODEL:
1983.5 - 1986 4X4 720 Truck
SERVICE INFORMATION
The springs on some 1983.5 - 1986 4X4 Trucks may squeak when the truck is driven over rough roads. The noise is caused by the rear suspension
number four leaf spring rubbing against the U-shaped bracket. A countermeasure number four leaf spring (with wider U-bracket and plastic liner) is
available to correct this condition.
PARTS INFORMATION
QUANTITY
PART DESCRIPTION
REQUIRED
PART NUMBER
Countermeasure #4 Leaf
(with U-bracket and
2
55024-30W05
liner)
SERVICE PROCEDURE
1.
Raise the truck on a frame type hoist to allow the rear axle to hang down.
2.
Support the rear differential with a transmission jack.
3.
Remove the left rear wheel to allow access to the U-bracket torx bolt.
4.
Remove the torx bolt of the U-bracket on the number four leaf of the left spring.
NOTE:
Illustration is of right spring.
5.
Loosen (do not remove) the shock absorber lower end nut and remove the two U-bolts (4 nuts). Allow lower spring pad to hang from shock
absorber.
6.
Lower the differential (with transmission jack).
"CAUTION": Be careful not to stretch the brake hose.