answersLogoWhite

0


Best Answer

The gear oil best suited for a 1991 4x4 is 75w-40. The best idea, however, is to check the owner's manual which will provide recommended products for the vehicle.

User Avatar

Wiki User

9y ago
This answer is:
User Avatar

Add your answer:

Earn +20 pts
Q: What gear oil goes in a 1991 F150 4x4 case?
Write your answer...
Submit
Still have questions?
magnify glass
imp