Lube Locker Ford 8.8in. Differential Cover Gasket – LLR-F880

Differential cover gasket for the Ford 8.8-inch rear axle
Steel core with rubber coating and elastomer beading on both sides
Lube Locker says no sealant is needed for installation
Does not fit IFS front or IRS rear axles

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Description

Overview

The Lube Locker LLR-F880 is a differential cover gasket for the Ford 8.8-inch rear axle. It has a rubber-coated steel core and elastomer beading along the full perimeter on both sides.

Installation is dry, with no sealant and no setup time needed. The gasket is for the rear cover only and does not fit IFS front or IRS rear axles.

The Ford 8.8-inch axle size in the title is the main identifier for this gasket.

Key features

Steel core with a rubber coating
Elastomer beading on both sides, along the full perimeter
Dry installation with no additional sealant
No setup time required

Cover gasket and sealing surfaces

A differential cover seals against the housing, and most leaks come from a dirty or scored mating surface rather than the gasket itself. Scrape old material off both faces with a plastic tool, wipe them with clean solvent, and check for nicks before fitting the new gasket. A flat, clean surface lets the beading seat evenly.

Fluid level matters as much as the seal. A cover that has been leaking may have lost fluid, so check the level and condition before a trail trip. Tighten cover bolts in a crisscross pattern so the cover pulls down evenly, and re-check them after the first few drives, since bolts can loosen as the axle heats and cools.

Clean both sealing faces thoroughly
Look for nicks or warping on the cover flange
Tighten bolts in a crisscross pattern

Specifications

Brand	Lube Locker
Model	LLR-F880
Axle size	Ford 8.8-inch
Axle location	Rear
Axle maker	Ford
Not for	IFS front or IRS rear axles
UPC	859167006055

Vehicle fitment

It is sized for the Ford 8.8-inch rear axle, so the axle size is the main match to check.

It does not fit IFS front or IRS rear axles. Confirm the axle is the Ford 8.8-inch rear before installing.

Installation notes

The gasket installs dry, without sealant, on the rear 8.8-inch cover only. Confirm the cover is the rear type before fitting.

What’s included

One differential cover gasket for the Ford 8.8-inch rear axle.

SKU: LULLLR-F880 Category: Differential Gaskets

Specification

Shipping weight	0.62 lbs
Package dimensions	0.30 × 0.20 × 0.10 in
brands	Lube Locker

Questions & Answers

Will the LLR-F880 fit an IFS front axle?

No. It does not fit IFS front or IRS rear axles, so it is intended for the rear 8.8-inch differential cover only. Confirm the cover is the rear type before installing.

Does the gasket need sealant?

No. Lube Locker says installation is dry, with no additional sealant needed and no setup time. The elastomer beading on both sides is intended to seal the cover without RTV or other sealant.

What is the UPC for this gasket?

The UPC is 859167006055. No separate manufacturer part number is listed, so compare the UPC and the 8.8-inch rear cover size before installing.

Why does a differential cover leak even with a new gasket?

Common causes are a dirty or damaged mating surface, loose cover bolts, or overfilled fluid pushing past the seal. Clean the faces, check the bolts and confirm the fluid level before assuming the gasket is at fault.

Can the gasket be reused?

A gasket that has been removed is generally best replaced, since the beading may have compressed or torn. Reusing one risks seepage, so fit a fresh gasket whenever the cover comes off.