Fluid · Automatic Transmission
Automatic Transmission
for 1990 GMC Sierra 3500 7.4L V8 454 · 4WD
Fluid Type
Dexron II ATF
Spec: GM Type A Suffix A
Capacity
14qt
13.24 L
Drain & Refill
7 qt
6.62 L
Change Interval
30,000 mi
48,270 km
Data quality
Book-style estimate
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Notes
TH400 or 4L80-E; pan drop typical service