4.13 - Rear Brake adjustment problems (2000, early 2001)
Description
This article is from the Toyota Tundra FAQ, by Steve Yee with numerous contributions by others.
4.13 - Rear Brake adjustment problems (2000, early 2001)
There has been some reported problems in which some owners have had rear brake
drums put "out of round" by the application of the emergency brake. This can
be caused by incorrect adjustments from the factory, port distributor, or
dealership in the cable, star adjusters, and bell crank linkages of the rear
brakes. This problem can be aggravated if the parking brake is applied while
the drums are hot. Adjustment of the linkages and bell cranks, along with
replacement/resurfacing of the rear brake components are sufficient to correct
the problem. Some have also had the star adjusters replaced per TSB BR006-00.
Listed below is a paraphrased version of the TSB:
Introduction: New parking brake struts (star wheel adjusters) have been
developed to reduce the possibility of rear brake vibration on 2000 and 2001
model year Tundra vehicles. The number of teeth on the star has been reduced
from 30 to 26 teeth.
Applicable Vehicles: 2000-2001 model year Tundra vehicles. VIN Range of
5TB####1#1S142446 onward per TSB Update of January 12, 2001.
Parts information: {four part numbers are listed with descriptions including
the adjuster assembly shoe both right and left, brake drum and rear brake shoe
kit}
Repair Procedure:
1. Grind rear brake drums with brake lathe to within serviceable limits.
2. If the drums are unserviceable or above maximum inside diameter, replace the
drums.
3. If there is uneven wear on the lining, replace the left and right brake
shoes.
4. Replace the parking brake shoe strut sets.
5. Adjust the parking brake to specifications.
6. Reinstall the rear wheels, and torque wheel nuts to : Torque: 113 N.m (1150
KGF.cm, 83 ft.lbf)
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