BorgWarner M75 M76 M78 28 Spline Full Spool

Features

• Suits BorgWarner M75, M76 & M78 differentials
• 28 spline
• Suits Beam and IRS diffs
• Heavy-duty billet steel construction
• Suitable for beam axle and IRS applications (where compatible)

Benefits of a full spool

A full spool provides equal power to both rear wheels at all times, ensuring maximum traction under acceleration.

With no internal gears, clutches or locking mechanisms to wear out, a full spool offers exceptional reliability in demanding racing environments.

It is the preferred choice for vehicles producing high power where durability is more important than street manners.

Common Applications

Suitable for many BorgWarner M75, M76 and M78 differentials found in:

• Ford Falcon
• Holden Commodore
• Nissan Skyline (Aussie assembled)
• Other vehicles fitted with BorgWarner M75, M76 or M78 differentials

Ideal For

• Drag racing
• Burnout vehicles
• Drift cars
• Circuit racing
• Dedicated competition vehicles

Not Recommended for Street Use

Because both axles are permanently locked together, a full spool does not allow the wheels to rotate at different speeds when cornering. This results in tyre scrub, increased drivetrain stress and poor low-speed handling on sealed roads.

For street-driven vehicles, a helical or clutch-type LSD is generally a more suitable option. Learn more about the different types of limited slip differentials and which may be a better fit for your vehicle here.