Rear Differential fill plug replacement
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1st Gear
Joined: Sep 2025
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Rear Differential fill plug replacement
My rear differential fill plug is stripped. Anyone know a PN or where I can buy a replacement? First time buying non consumable parts( filters, fluids) for it.
1988 Ranger XLT
2.3L, Automatic 4cylinder
1988 Ranger XLT
2.3L, Automatic 4cylinder
Cargo Master
Joined: Mar 2001
Posts: 2,759
Likes: 70
From: Elk River, MN
If the drain plug is stripped so much you can not get it out, you can try methods like heat, air hammer, fowl language, etc. In the end, you can always remove the entire cover ad drill out the plug and use an eazy out. A new plug can most likely be found by taking the cover to a hardware store and trial fitting something like 1/2"-14 tpi. Or search on line for a rear diff drain plug, but most late model years would be metric and you plug may be SAE.
Fleet Mechanic
Joined: Jun 2023
Posts: 1,367
Likes: 382
From: WA
Pretty sure his fill plug is in the housing, not the cover.
I'd go to a Ford dealership. Wouldn't be a surprise if the same plug has been used for decades, across most models. Not much to it.
https://parts.ford.com/shop/en/us/po...g-p-1l2z7a010a
Or go aftermarket. Look at the list of applications. Improved design.
D440055 Differential Cover Pan Fill Plug for various Dana 28, Dana 30, Dana 35, Dana 44, Dana 70, Dana 80 front or rear axles in Chevy/GMC, Dodge, Ford and Jeep applications.
https://torqueking.com/products/4400...-pan-fill-plug
p.s. your local auto parts store probably has a bunch of them.
I'd go to a Ford dealership. Wouldn't be a surprise if the same plug has been used for decades, across most models. Not much to it.
https://parts.ford.com/shop/en/us/po...g-p-1l2z7a010a
Or go aftermarket. Look at the list of applications. Improved design.
D440055 Differential Cover Pan Fill Plug for various Dana 28, Dana 30, Dana 35, Dana 44, Dana 70, Dana 80 front or rear axles in Chevy/GMC, Dodge, Ford and Jeep applications.
https://torqueking.com/products/4400...-pan-fill-plug
p.s. your local auto parts store probably has a bunch of them.
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mattnj
1987 - 1996 F150 & Larger F-Series Trucks
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Sep 25, 2018 09:40 AM
