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Ok guys,
Im looking to figure out what rear axle i have.I know i have the 4.10 LS axle,but is it a sterling,dana60,etc,etc.
I know i need the limited slip additive.
80-90,75-140,85-140??????
I think it needs to be synthetic,right?
I need to change out all my Axle seals,so i figured might as well change the fluid too.
Any help would be great.
Thanks.
Last edited by Green_Dually; Aug 27, 2006 at 10:45 AM.
It used to be SAE 75W-140 High Performance Rear Axle Lubricant F1TZ-19580-B but I think Ford has a service bulletin (TSB) for 75-90W full synthetic. The additive is Friction Modifier C8AZ-19B546-A.
On edit: I found the Motorcraft recommendation...here is the link:
It used to be SAE 75W-140 High Performance Rear Axle Lubricant F1TZ-19580-B but I think Ford has a service bulletin (TSB) for 75-90W full synthetic. The additive is Friction Modifier C8AZ-19B546-A.
new truck has a 10.5 but yes a 10.25 r&p work. i think the only difference is the bearings the carrier rides in. thus obs/nbs can all use the same r&p.
i used royal purple synthetic. already had the friction modifier in it. (although i have an open diff )
have a good day
Last edited by 1997F-350; Aug 28, 2006 at 04:12 PM.
Right, I know what SRW and DRW means I was talking about the difference between either trucks rear axles. Gearing? Is it possible to put 3.73 gears in a DRW? How is the gas mileage effeted between those two gearing ratios?
Right, I know what SRW and DRW means I was talking about the difference between either trucks rear axles. Gearing? Is it possible to put 3.73 gears in a DRW? How is the gas mileage effeted between those two gearing ratios?
No,as my buddys truck has 3.73.I have the same truck but with 4.10.
Im not sure why they use the dana 80 in DRW.And not the sterling or 10.5,etc,etc.