1987 - 1996 F150 & Larger F-Series Trucks1987 - 1996 Ford F-150, F-250, F-350 and larger pickups - including the 1997 heavy-duty F250/F350+ trucks
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If you just drain all the old fluid and put new fluid in you should be fine but if you want to be very thorough...Drain all the old fluid. Put about 1/2 to 1 qt of new fluid in and roll the truck up and down the driveway once. - don't drive it, just spin the wheels a little to get the new fluid to "rinse" the inside of the housing and gears. drain again and refill. don't forget to add the really expensive additive if necessary.
1990 F250 4X4,7.5L,E4OD, Sterling 10.25, Dana 50, 150k, 9 MPG towing or not.
When changing the rear differential lube, how should one go about cleaning out the housing and gears before re-lubing the differential?
1989 F150 4X2 355 non LS
If it gets a little dirty while you are working on it witch they do when I am laying in the dirt and the wind is blowing 20 MPH. I use a small pump up garden sprayer with solvent in it and give it a good flush just before you put the cover on
Ford F150 2X4 standard cab short bed 4.9 300 cid 5 speed with 8.8 2.73 100% original this is my Baby
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