K 2500 Truck 4WD V8-379 6.2L DSL VIN C FI (1989)
Suspension Strut / Shock Absorber: Customer Interest
Suspension - Choppy Ride Due to Front Shocks
GMC NUMBER:
89-3C-131
GROUP:
3C Front Suspension
DATE:
May, 1990
CORPORATE
NUMBER:
063301
SUBJECT:
CHOPPY RIDE DUE TO OVER EXTENSION OF FRONT SHOCKS (NEW TORSION BAR ADJUSTER)
MODELS:
1988-1989 K1, K2, K3 TRUCKS WITH F60 (HEAVY DUTY FRONT SPRINGS)
A 1990 model torsion bar adjusting arm (Part # 15603963) is now available through GMSPO for 1988 and 1989 model trucks equipped with F-60 option
that continue to damage front shocks, even after adjusting the torsion bar for the lowest front ride height. This new torsion bar adjusting arm will provide
a lower front ride height, thus preventing over extension and damage to shocks. These adjusters will not change Gross Front Axle Weight Rating
(GFAWR).
Figure 1 - Torsion Bar Adjuster Height
Figure 2 - Torsion Bars and Support
SERVICE PROCEDURE:
