Fluid · Transfer Case
Transfer Case
for 1971 GMC K1500 250ci I6 · 4WD
Fluid Type
80W-90 GL-5 or Dexron II ATF
Spec: API GL-5 or GM Type A Suffix A
Capacity
3.5qt
3.31 L
Drain & Refill
3.5 qt
3.31 L
Change Interval
30,000 mi
48,270 km
Data quality
Book-style estimate
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Notes
NP205 transfer case. Can use gear oil or ATF per GM specifications.