Fluid · Manual Transmission
Manual Transmission
for 1961 GMC 1000 Series 283ci V8 · RWD
Fluid Type
SAE 90 gear oil
Spec: API GL-1 or GL-3
Capacity
3.5qt
3.31 L
Drain & Refill
3.5 qt
3.31 L
Change Interval
24,000 mi
38,616 km
Data quality
Book-style estimate
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Notes
3-speed or 4-speed manual transmission. Do not use modern GL-5 without proper vintage additive package.