Mustang Ultra Fab 9-Inch Axle Housing with Mounts, Ends, Fill, Drain and Vent (79-04 Mustang)

Product Information

Features, Description, Q&A, Specs & Installation

Features

Ultra Fab 9-Inch Housing Designed for 1979-2004 Mustang Models
Constructed from Extra High Strength Cold Formed Steel Known as 100XF Material
Utilizes Material Equivalent to Chromoly with Superior Fatigue Resistance
Incorporates Triangulated Rigid Design with .125” Wall Thickness Material
Features Heavy Duty .375” Face Plate and Internal Radial Gusset Plates
Tubing Locations Slotted and Welded for 5-Inch Length
Provides Clearance for Heavy Duty Main Caps in Center Section
Compatible with 9”, 9 1/2”, or 10” Gear Sets
Equipped with Fill and Drain Plugs for Easy Fluid Changes and Inspection
Housing Tubing is 3.250” Outer Diameter with .250” Wall Thickness Made from DOM 1026 Steel
Includes Vent to Prevent Internal Pressure Build-Up and Maintain Sealing Integrity
Offers Multiple Upper and Lower Control Arm Mounting Holes for Chassis Tuning
Adjustable Shock Mounts Provide Six Positions with .375” Increments for Ride Height Adjustment
Choice of Forged Chrome Moly Housing Ends Accepting 3.150” Bearings
Jig Welded Housing Ends and Tubes for Proper Alignment and Maximum Rigidity
Back Brace Option Available to Eliminate Flex Under Aggressive Launch Conditions
Fits 79-04 Mustang

Description

Fabricated 9-Inch Housing Assembly. The Ultra Fab 9-Inch Axle Housing with Mounts, Ends, Fill, Drain and Vent is engineered to provide a highly durable and rigid rear housing solution for 1979-2004 Mustang models. This housing assembly enhances drivetrain strength and vehicle stability, supporting consistent power delivery and launch control in demanding driving conditions. It is designed for performance enthusiasts seeking a strong upgrade for street, track, or race applications.

Construction and Durability. Built from extra high strength 100XF cold formed steel, this housing features a robust triangulated design with .125” wall thickness and a heavy duty .375” face plate. Internal radial gusset plates reinforce the tube ends, while the tubes are constructed from precision DOM 1026 steel with a 3.250” outer diameter and .250” wall thickness for added strength. The housing ends and tubes are jig welded to ensure precise alignment and maximum structural integrity.

Installation. Installation requires moderate mechanical skill and is designed as a direct bolt-in replacement for OEM Mustang applications. The jig welding of tubes and ends ensures accurate fitment, allowing for a secure and reliable installation without the need for drilling.

Application. Specifically designed to fit 1979 through 2004 Mustang models, this housing assembly provides a direct bolt-in upgrade compatible with OEM 8.8 housing pinion offset and mounting locations.

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