Motorcraft XL-3 Friction Modifier Additive (Case Of 12 - 4oz Bottles) C8AZ19B546-1

If you're maintaining a Ford rear axle—especially one with a limited-slip differential—you know the drill: it needs the good stuff.

This is it, right here.

This is a full case of 12 bottles of genuine Motorcraft XL-3 friction modifier (part number C8AZ19B546-1).

Each bottle is 4 ounces, so you've got plenty on hand for multiple fluid changes or for maintaining a whole fleet.

This is the factory-spec additive that keeps your clutch packs from chattering and your differential working smoothly.

If you've got that groan when turning corners, this is the cure.

The case is a custom bundle of brand new, unopened bottles.

Whether you're a shop owner or a DIYer who likes to be prepared, stocking up on this OEM-spec stuff is a smart move.

No warranty on this one, but it's Motorcraft—it's what the dealer would sell you.