1991 Buick Roadmaster Complete Differentials

Enhance and Protect Your 1991 Buick Roadmaster with Quality Complete Differentials

Maintaining the performance of your 1991 Buick Roadmaster starts with choosing the right parts, and high-quality Complete Differentials help ensure a reliable and efficient vehicle. At Advance Auto Parts, we offer Complete Differentials specifically for the 1991 Buick Roadmaster, ensuring a perfect fit and lasting durability. Choosing to shop with Advance Auto Parts means you’re making a smart decision to prioritize both quality and reliability for your vehicle.

Affordable and Reliable Complete Differentials for Every Budget

Finding affordable, quality Complete Differentials is easy at Advance Auto Parts. With prices starting as low as $368.99 and an average price of $455.74, you can choose one that fits your budget while delivering the quality you expect. Our Complete Differentials are competitively priced, ranging from $368.99 to $544.99, so you get value without compromising on strength or reliability.

Explore Related Parts for a Complete Solution

To further enhance your 1991 Buick Roadmaster, don’t miss our related parts categories, including Differential Oil and Differential Pinion Yokes. These additions will round out your repair or upgrade project and ensure your vehicle is ready for any adventure.
Please Select your Vehicle to See Exact Fit Parts

Complete Differentials for Your 1991 Buick Roadmaster

Powertrax – Differential Lock Assembly (Part No.9207853005)

Differential Lock Assembly

from

$544.99
For vehicles that are driven daily, the Power Trax No-Slip Traction System is the latest design in quiet traction-adding differential technology. It combines the automatic street-friendly smooth operation of a limited-slip differential with the traction performance of a locking differential. The Power Trax No-Slip locker easily installs in to your differential carrier using basic tools and without affecting your ring and pinion settings. Power Trax Grip-Lok, Lock-Right Lockers and No-Slip Traction Systems automatically provide 100% traction on-demand, under the toughest circumstances. The Power Trax Grip-Pro and Grip-LS performance limited slips offer smooth dependable torque transfer and traction for the best of both worlds.

Product Features:
  • The Power Trax Lock-Right Locker provides outstanding traction for off-road machines and race vehicles. Power Trax No-Slip Traction Systems deliver excellent performance to street-driven cars and trucks.
  • Power Trax lockers range from the original, Lock-Right for serious straight-line performance, to the No-Slip traction system for street-able vehicles.
  • Power Trax offers three levels of GRIP locking differentials, ranging from the clutch-type GRIP LS with a forged steel case, the gear-driven GRIP PRO and finally the GRIP LOK for extreme traction.
  • Power Trax ia an Extreme Traction System
See More

Powertrax – Grip LS Traction System (Part No.LS201028)

Grip LS Traction System

from

$463.99
For vehicles that are driven daily, the Powertrax No-Slip Traction System is the latest design in quiet traction-adding differential technology. It combines the automatic street-friendly smooth operation of a limited-slip differential with the traction performance of a locking differential. The Powertrax No-Slip locker easily installs in to your differential carrier using basic tools and without affecting your ring and pinion settings. Powertrax Grip-Lok, Lock-Right Lockers and No-Slip Traction Systems automatically provide 100% traction on-demand, under the toughest circumstances. The Powertrax Grip-Pro and Grip-LS performance limited slips offer smooth dependable torque transfer and traction for the best of both worlds!
See More

Powertrax – Differential Lock Assembly (Part No.1931-LR)

Differential Lock Assembly

from

$444.99
For vehicles that are driven daily, the Power Trax No-Slip Traction System is the latest design in quiet traction-adding differential technology. It combines the automatic street-friendly smooth operation of a limited-slip differential with the traction performance of a locking differential. The Power Trax No-Slip locker easily installs in to your differential carrier using basic tools and without affecting your ring and pinion settings. Power Trax Grip-Lok, Lock-Right Lockers and No-Slip Traction Systems automatically provide 100% traction on-demand, under the toughest circumstances. The Power Trax Grip-Pro and Grip-LS performance limited slips offer smooth dependable torque transfer and traction for the best of both worlds.

Product Features:
  • The Power Trax Lock-Right Locker provides outstanding traction for off-road machines and race vehicles. Power Trax No-Slip Traction Systems deliver excellent performance to street-driven cars and trucks.
  • Power Trax lockers range from the original, Lock-Right for serious straight-line performance, to the No-Slip traction system for street-able vehicles.
  • Power Trax offers three levels of GRIP locking differentials, ranging from the clutch-type GRIP LS with a forged steel case, the gear-driven GRIP PRO and finally the GRIP LOK for extreme traction.
  • Power Trax ia an Extreme Traction System
See More

Powertrax – Differential Lock Assembly (Part No.1921-LR)

Differential Lock Assembly

from

$368.99
For vehicles that are driven daily, the Power Trax No-Slip Traction System is the latest design in quiet traction-adding differential technology. It combines the automatic street-friendly smooth operation of a limited-slip differential with the traction performance of a locking differential. The Power Trax No-Slip locker easily installs in to your differential carrier using basic tools and without affecting your ring and pinion settings. Power Trax Grip-Lok, Lock-Right Lockers and No-Slip Traction Systems automatically provide 100% traction on-demand, under the toughest circumstances. The Power Trax Grip-Pro and Grip-LS performance limited slips offer smooth dependable torque transfer and traction for the best of both worlds.

Product Features:
  • The Power Trax Lock-Right Locker provides outstanding traction for off-road machines and race vehicles. Power Trax No-Slip Traction Systems deliver excellent performance to street-driven cars and trucks.
  • Power Trax lockers range from the original, Lock-Right for serious straight-line performance, to the No-Slip traction system for street-able vehicles.
  • Power Trax offers three levels of GRIP locking differentials, ranging from the clutch-type GRIP LS with a forged steel case, the gear-driven GRIP PRO and finally the GRIP LOK for extreme traction.
  • Power Trax ia an Extreme Traction System
See More

FAQs for 1991 Buick Roadmaster Complete Differentials

Which Complete Differentials are the top sellers for the 1991 Buick Roadmaster?

Out of 4 Complete Differentials that fit 1991 Buick Roadmasters, the following parts are the top sellers:
Differential Lock Assembly
from $368.99
This product is not rated
Differential Lock Assembly
Complete Differentials
Differential Lock Assembly
from $544.99
This product is not rated
Differential Lock Assembly
Complete Differentials
Differential Lock Assembly
from $444.99
This product is not rated
Differential Lock Assembly
Complete Differentials

How can I make sure that a part will be compatible with my 1991 Buick Roadmaster?

Our Buick Roadmaster aftermarket and OEM parts are designed specifically for the 1991 model. You can always find your specific fitment and compatibility for your 1991 Buick on an individual product page.

What is the price range for 1991 Buick Roadmaster Complete Differentials?

The range of prices of Complete Differentials for the 1991 Buick Roadmaster goes from $368.99 up to $544.99 for the most premium parts.

What is the average price of 1991 Buick Roadmaster Complete Differentials?

1991 Buick Roadmaster Complete Differentials average $455.74 for our selection of OEM and aftermarket parts.

Does Advance Auto Parts sell Complete Differentials for other Buick Roadmaster model years?

Yes, we currently stock Complete Differentials for 4 model years of Buick Roadmasters, from 1992 to 1996. Model years 1996, 1994, 1995, 1992, and 1993 are the most popular for Complete Differentials purchases.

Can I get help with 1991 Buick Roadmaster Complete Differentials orders?

Contact our customer support team, by chat or phone, through the help desk page, where you can find instant answers about Buick Complete Differentials and more.

What is your return policy for Buick Roadmaster Complete Differentials?

Advance Auto Parts keeps returns simple. For new Buick Roadmaster Complete Differentials and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.