1979 Mercury Grand Marquis Limited Slip Differential Assemblies

Your 1979 Mercury Grand Marquis might be the best vehicle you’ve ever owned. Or you may just be struggling to keep it highway-approved. No matter the situation, Advance Auto Parts has the Limited Slip Differential Assemblies you desperately need.

We currently carry 4 Limited Slip Differential Assemblies to choose from for your 1979 Mercury Grand Marquis, and our inventory prices range from as little as $719.99 up to $789.99.

On top of low prices, Advance Auto Parts offers 1 different trusted brands of Limited Slip Differential Assemblies for the 1979 Mercury Grand Marquis. We only sell parts from trusted brands like Yukon Gear so that you can find quality parts you can count on.

Have parts delivered straight to your home, or find the nearest Advance Auto Parts store to check out our Limited Slip Differential Assemblies stock in-person!

Limited Slip Differential Assemblies for Your 1979 Mercury Grand Marquis

Yukon Gear – Tracloc For Ford 9" Wtih 28 Spline Axles – Street Design (Part No.26008)

Tracloc For Ford 9" Wtih 28 Spline Axles - Street Design

from

$789.99
The Yukon Dura Grip provides aggressive yet smooth traction to give you the confidence & performance you need. Get longer life and better traction with the heavy duty Yukon Dura Grip Positraction. The Yukon Trac Loc uses a nodular case, billet side hat, and forged internals for higher strength than stock Trac-Locs. The units use composite clutches for high performance and long life. All units are Rebuildable. Yukon offers a one year warranty against manufacturing defects.

Product Features:
  • Fits Ford 9″ with 28 spline axles
  • Trac Loc positraction
  • Clutch style positraction
  • Street design
  • Internal gears are manufactured using forged 4320 steel and cut to provide stronger teeth
  • Fully rebuildable
  • Assembled in the USA
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Yukon Gear – Trac Loc For Ford 9" Wtih 31 Spline Axles – Street Design (Part No.26010)

Trac Loc For Ford 9" Wtih 31 Spline Axles - Street Design

from

$789.99
The Yukon Dura Grip provides aggressive yet smooth traction to give you the confidence & performance you need. Get longer life and better traction with the heavy duty Yukon Dura Grip Positraction. The Yukon Trac Loc uses a nodular case, billet side hat, and forged internals for higher strength than stock Trac-Locs. The units use composite clutches for high performance and long life. All units are Rebuildable. Yukon offers a one year warranty against manufacturing defects.

Product Features:
  • Fits Ford 9″ with 31 spline axles
  • Trac Loc positraction
  • Clutch style positraction
  • Street design
  • Internal gears are manufactured using forged 4320 steel and cut to provide stronger teeth
  • Fully rebuildable
  • Assembled in the USA
See More
View Product

Yukon Gear – Trac Loc For Ford 9" Wtih 31 Spline Axles – Aggressive Design (Part No.26009)

Trac Loc For Ford 9" Wtih 31 Spline Axles - Aggressive Design

from

$784.99
The Yukon Dura Grip provides aggressive yet smooth traction to give you the confidence & performance you need. Get longer life and better traction with the heavy duty Yukon Dura Grip Positraction. The Yukon Trac Loc uses a nodular case, billet side hat, and forged internals for higher strength than stock Trac-Locs. The units use composite clutches for high performance and long life. All units are Rebuildable. Yukon offers a one year warranty against manufacturing defects.

Product Features:
  • Fits Ford 9″ with 31 spline axles
  • Trac Loc positraction
  • Clutch style positraction
  • Aggressive design
  • Internal gears are manufactured using forged 4320 steel and cut to provide stronger teeth
  • Fully rebuildable
  • Assembled in the USA
See More
View Product

Yukon Gear – Trac Loc Positraction, Ford 8.8", 31 Spline (Part No.20069)

Trac Loc Positraction, Ford 8.8", 31 Spline

from

$719.99
Product Features:
  • Trac Loc positraction
  • Fits Ford 8.8″ with 31 spline axles
See More
View Product

FAQs for 1979 Mercury Grand Marquis Limited Slip Differential Assemblies

What are the most popular Limited Slip Differential Assemblies for the 1979 Mercury Grand Marquis?

With 1 brands you can trust, our most popular Limited Slip Differential Assemblies for the 1979 Mercury Grand Marquis parts are:
Trac Loc Positraction, Ford 8.8", 31 Spline
from $719.99
This product is not rated
Trac Loc Positraction, Ford 8.8", 31 Spline
Limited Slip Differential Assemblies
Tracloc For Ford 9" Wtih 28 Spline Axles - Street Design
from $789.99
This product is not rated
Tracloc For Ford 9" Wtih 28 Spline Axles – Street Design
Limited Slip Differential Assemblies
Trac Loc For Ford 9" Wtih 31 Spline Axles - Aggressive Design
from $784.99
This product is not rated
Trac Loc For Ford 9" Wtih 31 Spline Axles – Aggressive Design
Limited Slip Differential Assemblies