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Changing oil in front and rear diff's.
Im sorry..I knew I had to use synthetic..but didnt know if I could use 75w90...or if I HAD to use 75w-140- schlepprock379
- Post #3
- Forum: 99+ 7.3L PowerStroke Engine & Drivetrain
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Changing oil in front and rear diff's.
Hello,I was wondering if I can use 75w-90 gear oilin the rear diff. or do I have to use 75w-140? Thx in advance to all replies- schlepprock379
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- Replies: 5
- Forum: 99+ 7.3L PowerStroke Engine & Drivetrain