Fluid · Rear Differential
Rear Differential
for 1969 Ford Mustang Boss 429 429ci V8 (Boss 429 Semi-Hemi) · RWD
Fluid Type
80W-90 GL-5
Spec: API GL-5
Capacity
3.5qt
3.31 L
Drain & Refill
3.5 qt
3.31 L
Change Interval
30,000 mi
48,270 km
Notes
9-inch rear axle with Detroit Locker. Add friction modifier (4 oz) for limited-slip differential.
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