Engine - New Crankshaft (Harmonic) Balancer
Number: 84-188Section: 6A (VI)
Date: Sept., 1984
Subject: CRANKSHAFT (HARMONIC) BALANCER
Model and Year: 1981-84 IMPALA, CAPRICE, MONTE CARLO, EL CAMINO, AND 1981-83 MALIBU WITH 3.8L V6 ENGINES (VIN CODES A OR 3)
TO: ALL CHEVROLET DEALERS
A new crankshaft balancer is now available for use on the above engines. This new balancer requires the use of longer bolts for attaching the crankshaft pulley to the balancer.
For this reason, the longer bolts required will be packaged with the balancer under P/N 25523502 for regular aspirated engine and P/N 25523503 for turbo engines. The new longer bolts should always be used when replacing the balancer.