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TSB 05-04-00

High Pitched Squeal From Rear Brakes

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Models: 2000 (BR/BE) Ram Truck

NOTE: THIS BULLETIN APPLIES TO 2500/3500 SERIES RAM TRUCKS BUILT BEFORE MARCH 1, 2000 (MDH 0301XX).

Discussion:
This bulletin involves installing revised rear brake shoes.

Symptoms:
A high pitched squeal comes from the rear brakes when the brakes are applied.

Diagnosis:

NOTE: THE FOLLOWING DIAGNOSIS MUST BE PERFORMED WITH THE REAR BRAKE DRUM TEMPERATURES LESS THAN 49C. (120F.) (MUST NOT BE HOT TO THE TOUCH).

Raise and support the rear axle. The axle should be supported so that the rear tires are completely off the ground.

CAUTION: 4X4 VEHICLES MUST HAVE THE TRANSFER CASE IN THE 4X2 MODE.

Start the engine. Put the transmission into gear and slowly raise the vehicle speed while applying light and steady pressure to the brake pedal. Attempt to reproduce the noise by applying different pressures to the brake pedal a vehicle speeds of 8 - 16 kPh (5 - 10 mph). If a high pitched squeal is heard coming from the rear brakes, perform the Repair Procedure.

NOTE. WITH THE VEHICLE RAISED, THE REAR WHEELS WILL LOCK-UP VERY QUICKLY WHEN THE BRAKES ARE APPLIED. IT IS RECOMMENDED TO USE THE MIRRORS TO MONITOR TIRE ROTATION (LEFT AND RIGHT) DURING DIAGNOSIS.

Parts:

1     05015337AB    Brake Shoes And Linings  

Repair:
1.    Remove and replace both right and left rear brake shoe and lining assemblies with p/n 05015337AB. Refer to the 2000 Ram Truck Service Manual (Publication No. 81-370- 0008), pages 5-31 and 5-32, "Removal And Installation - Rear Brake Shoes - 12 1/8 Inch."

Notes:

POLICY:. Reimbursable within the provisions of the warranty.

TIME ALLOWANCE:
Labor Operation No: 05-70-06-97 ................................................................ 0.7 Hrs.
  Optional Equipment: 05-70-06-60 Dual Rear Wheels ................................... 0.2 Hrs.

FAILURE CODE: P8 - New part

This page was edited on: May 3, 2004