1979 Pontiac Firebird Differentials

Essential 1979 Pontiac Firebird Differentials

Yukon Gear – Pinion Install Kit For GM 8.2" Differential For Buick, Pontiac, And Oldsmobile (Part No.13068)

Pinion Install Kit For GM 8.2" Differential For Buick, Pontiac, And Oldsmobile

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$282.99
Yukon Pinion installation kits are a terrific solution for gear installation on lower mileage vehicles where the carrier bearings & races can be reused. This kit uses Timken bearings and races along with a high quality pinion seal and small parts. Included in this kit are the pinion bearings and races, pilot bearing (if applicable), crush sleeve (if applicable), complete pinion shim kit, thread locker, and marking compound with brush. Yukon does extensive research for each application to make sure your kit will arrive with all the correct parts you need to install your pinion gear.

Product Features:
  • Fits 8.2″ Buick, Oldsmobile and Pontiac
  • Included are pinion bearings and races, pinion seal, crush sleeve, complete pinion shim kit, and marking compound with brush.
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Motive Gear – Differential Pinion Shim Kit (Part No.1100)

Differential Pinion Shim Kit

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$7.49
High-quality Differential Component Shim

Product Features:
  • SHIM KIT FITS-8.25-F7.5-AMC20-GM0
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Richmond Gear – RngPnnInstlKt (Part No.83-1044-B)

RngPnnInstlKt

from

$43.99
RngPnnInstlKt

Yukon Gear – Conversion Kit (Part No.41184)

Conversion Kit

from

$289.99
Product Features:
  • Fits GM 8.2″ Buick, Oldsmobile and Pontiac
  • Adapt GM gears for BOP housing
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Pro-King – Differential Bearing Cone (Part No.742G255)

Differential Bearing Cone

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$19.79
Pro-King is the leading supplier of transmission and driveline products in the aftermarket.

Product Features:
  • All products are designed to meet or exceed OE quality, form, fit and funtion.
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Yukon Gear – Dana 25, 27, 30, 44, Model 20 And Model 35, GM 7.5", 8.2", 8.5", 12P, 12T, C9.25 Rear Cover Bolt (Part No.33286)

Dana 25, 27, 30, 44, Model 20 And Model 35, GM 7.5", 8.2", 8.5", 12P, 12T, C9.25 Rear Cover Bolt

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$9.99
5/16″-18 cover bolt, Dana Spicer 25, 27, 30 and 44, AMC Model 20 and Model 35, Chrysler 9.25 rear, GM 7.5″, 7.625″, 8.2″, 8.5″, 12 bolt passenger car and truck.

Product Features:
  • Cover bolt for Dana Spicer 25, 27, 30 and 44, AMC Model 20 and Model 35, GM 7.5″, 7.625″, 8.2″, 8.5″ and 12 bolt passenger car and truck.
  • 1/2″ head
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Yukon Gear – Minor Install Kit For GM Early And Late 7.5" Differential (Part No.12050)

Minor Install Kit For GM Early And Late 7.5" Differential

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$115.99
Yukon Minimum installation kits are a low cost solution for gear changes in newer vehicles where the bearings can be reused. This kit uses all high quality components to ensure a smooth set up. kit includes a pinion seal, crush sleeve (if applicable), complete shim kit, marking compound and brush.

Product Features:
  • Fits GM 7.5″ and 7.625″
  • Included are a pinion seal, crush sleeve, complete shim kit, marking compound and brush.
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Pro-King – Differential Cross Shaft (Part No.742G673)

Differential Cross Shaft

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$28.49
Pro-King is the leading supplier of transmission and driveline products in the aftermarket.

Product Features:
  • All products are designed to meet or exceed OE quality, form, fit and funtion.
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USA Standard Gear – Ring & Pinion Gear Set For GM 7.5" In A 3.42 Ratio (Part No.36195)

Ring & Pinion Gear Set For GM 7.5" In A 3.42 Ratio

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$344.99
USA Standard ring & pinion sets are the right choice to add confidence to your install. USA Standard Gear offers a full line of ring & pinion sets for a variety of common & hard to find applications. USA standard gear offers a standard one year warranty against defects on their ring & pinion sets.

Product Features:
  • Fits GM 7.5″ and 7.6″
  • 7.50″ ring gear diameter
  • 27 spline pinion
  • 10 ring gear bolts
  • 3.42 ratio
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Yukon Gear – Standard Open Spider Gear Kit For Late 7.625" GM With 28 Spline Axles (Part No.16049)

Standard Open Spider Gear Kit For Late 7.625" GM With 28 Spline Axles

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$187.99
Yukon standard open spider gear kit for late 7.625″ GM with 28 spline axles and large and small windows. Yukon uses higher quality materials and better techniques than OEM to ensure a longer lasting spider gear set. All components come with a one year warranty against manufacturing defects.

Product Features:
  • Spider gear kit
  • Fits GM 7.625″ open differential with 28 spline axles
  • Includes two side gears, two pinion gears, cross pin shaft, cross pin bolt and spider gear thrust washers.
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Yukon Gear – Steel Cover For GM 7.5" & 7.625" (Part No.32331)

Steel Cover For GM 7.5" & 7.625"

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$67.99
Product Features:
  • Fits GM 7.5″ and 7.625″
  • Steel
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Yukon Gear – 14 Plate Duragrip Composite Clutches For GM 8.2", GM 8.5", 12T, 12P, Ford 8.8" & Cast Iron ‘Vette (Part No.16064)

14 Plate Duragrip Composite Clutches For GM 8.2", GM 8.5", 12T, 12P, Ford 8.8" & Cast Iron 'Vette

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$373.99
Product Features:
  • Clutch kit
  • Fits Ford 8.8″, 1963-1979 Corvette, GM 12 bolt passenger car and truck, 8.2″, 8.5″ and 8.6″ Dura Grip positraction
  • 14 piece kit
  • Composite clutches
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USA Standard Gear – Mini Spool For GM 8.5", 28 Spline (Part No.59011)

Mini Spool For GM 8.5", 28 Spline

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$139.99
Product Features:
  • Fits GM 8.5″ with 28 spline axles
  • Installs into a standard open carrier case
  • Provides 100% traction to both wheels at all times
  • Not recommended for street driven vehicles
  • Mini spool
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Yukon Gear – Master Overhaul Kit For ’82-’99 GM 7.5" And 7.625" Differential (Part No.14077)

Master Overhaul Kit For '82-'99 GM 7.5" And 7.625" Differential

from

$289.99
Yukon Master Overhaul kits give you all the high quality parts you need to start & finish every differential job. Yukon offers more tailor-made kits than any other manufacturer in the industry to meet your specific installation needs. This kit uses Timken bearings and races along with high quality seals and small parts. Included in this kit are carrier bearings and races, pinion bearings and races, pinion seal, complete shim kit, ring gear bolts, pinion nut, crush sleeve (if applicable), oil baffles and slingers (if applicable), Thread locking compound, marking compound with brush, and gasket. Yukon’s Master Overhaul kits are the most comprehensive and complete kits on the market. They do extensive research to ensure that every kit is specially tailored to your application. Includes Supershims.

Product Features:
  • Fits 1982-1999 GM 7.5″ and 7.625″
  • Included are Timken bearings and races, pinion bearings and races, pinion seal, complete shim kit, ring gear bolts, pinion nut, crush sleeve , thread locker, marking compound with brush, and gasket.
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Yukon Gear – Cross Pin Shaft For 7.5", 7.625", And 8" GM (Part No.33404)

Cross Pin Shaft For 7.5", 7.625", And 8" GM

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$57.99
Cross pin shaft for 7.5″, 7.625″, and 8″ GM.

Product Features:
  • Cross pin shaft for GM 7.5″, 7.625″ and 8.0″
  • Fits standard open differentials only
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Yukon Gear – Dura Grip Positraction For GM 12 Bolt Car With 33 Spline Axles, 3.08 To 3.90 Ratio (Part No.26012)

Dura Grip Positraction For GM 12 Bolt Car With 33 Spline Axles, 3.08 To 3.90 Ratio

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$856.99
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 Dura Grip uses a nodular case and forged 4320 internals for added strength along with composite clutches for high performance and long life. All units are Rebuildable and many offer upgrades to increase aggressiveness for racing applications. Each unit carries a one year warranty against defects.

Product Features:
  • Fits GM 12 bolt passenger car with 33 spline axles
  • 3.08-3.90 ratios only
  • 4-spring, clutch style positraction
  • Internal gears are manufactured using forged 4320 steel and cut to provide stronger teeth
  • Fully rebuildable
  • Assembled in the USA
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Motive Gear – Ring Gear Bolt (Part No.14066913)

Ring Gear Bolt

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$2.49


Product Features:
  • RING GEAR BOLT 8.5″ 7.5″ 7/16 X 20 LEFT HAND
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Yukon Gear – The Carrier Bearing Puller (Part No.56034)

The Carrier Bearing Puller

from

$689.99
The Yukon carrier bearing Puller works with an impact gun to quickly and safely remove carrier bearings without damaging them. This unit comes with a handy bench top stand and works with up to most standard one ton applications. This unit is works with differentials up to one-ton applcations. It is not compatible with Dana 70HD, Dana 80, 10.25″ & 10.5″ Ford, or GM & Chrysler 11.5″ differentials.

Product Features:
  • Carrier bearing puller
  • Works with an impact gun to safely and easliy remove carrrier bearings
  • Not compatible with Dana 70HD, Dana 80, Ford 10.25″ and 10.5″ or Gm and Chrysler 11.5″ applications
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Yukon Gear – Dura Grip Positraction For GM 12 Bolt Car With 30 Spline Axles, 4.10 & Up (Part No.26013)

Dura Grip Positraction For GM 12 Bolt Car With 30 Spline Axles, 4.10 & Up

from

$839.99
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 Dura Grip uses a nodular case and forged 4320 internals for added strength along with composite clutches for high performance and long life. All units are Rebuildable and many offer upgrades to increase aggressiveness for racing applications. Each unit carries a one year warranty against defects.

Product Features:
  • Fits GM 12 bolt passenger car with 30 spline axles
  • 4.10 and up ratio only
  • 4-spring, clutch style positraction
  • Internal gears are manufactured using forged 4320 steel and cut to provide stronger teeth
  • Fully rebuildable
  • Assembled in the USA
  • 30 spline
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Yukon Gear – Positraction Clutch Guide (Part No.33352)

Positraction Clutch Guide

from

$8.99
Positraction clutch guide.

Product Features:
  • Clutch guide for Chrysler 9.25″, Dana Spicer 44, Dana Spicer 50, Ford 8.8″, GM 12 bolt passenger car, GM 8.2″, 8.5″ and 8.6″, 1963-1979 Corvette and Nissan Titan
  • Compatible with Dura Grip positractions only
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Dorman – Help – Pinion Crush Sleeves (Part No.81058)

Pinion Crush Sleeves

from

$6.49
This differential crush sleeve is designed to match the fit and function of the original sleeve on specified vehicles, and is engineered for durability and reliable performance.

Product Features:
  • Direct replacement – this differential crush sleeve is designed to match the fit and function of the original sleeve on specified vehicles.
  • Required replacement – when servicing the differential
  • Durable construction – this part is made from quality materials to ensure reliable performance and long service life
  • Trustworthy quality – backed by team of product experts in the United States and more than a century of automotive experience
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FAG US – CUP (Part No.M802011)

CUP

from

$15.29
CUP

Driveworks – Oil Seal (Part No.S-8460N)

Oil Seal

from

$6.29
Value-priced seal meets all cataloged application requirements.

Product Features:
  • Brand may vary by location
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Yukon Gear – Bearing Race Driver (Part No.56017)

Bearing Race Driver

from

$215.99
Bearing race driver. No return.

Product Features:
  • Bearing race driver
  • Fits HM89410 race
  • All steel construction
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Motive Gear – Pinion Nut (Part No.1260823)

Pinion Nut

from

$8.49
Motive Gear offers some of the toughest drive train components on the market today. If you are looking for the largest line of performance ring and pinion gear options available with gear sets in a wide range of ratios for nearly every application, both on and off-road, check out Motive Gear. Motive Gear products can be found in the winner’s circle at racing events worldwide. The superior quality of Motive Gear components is the result of years of racing development, outstanding design and state-of-the-art manufacturing methods. Extensive testing is performed on all products by our in-house engineers.
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Mr. Gasket – Differential Gasket (Part No.84B)

Differential Gasket

from

$18.09
Mr. Gasket Axle Housing/Differential Cover or Rear End Gaskets are manufactured from a .047 inch thick cellulose/nitrile composite gasket material for excellent sealing and durability. They are precision die-cut for an excellent fit. Fits 1964-1970 Chevrolet 8.2 inch 10 bolt & 1970-1981 GM 8.5 inch ring gear

Product Features:
  • .047″ thick cellulose/nitrile composite gasket material
  • Precision die cut
  • Reusable
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Yukon Gear – Posi Spring Kit For GM 7.5", With Preload Plates (Part No.33206)

Posi Spring Kit For GM 7.5", With Preload Plates

from

$153.99
Product Features:
  • Positraction spring kit
  • Fits GM 7.5″ and 7.625″ Dura Grip
  • Includes preload plates
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Yukon Gear – 8.5" & 8.2" GM Carrier Installation Kit (Part No.57008)

8.5" & 8.2" GM Carrier Installation Kit

from

$109.99
Yukon Carrier installation kits are great, low cost kit for carrier changes such as Positraction or locker upgrades. Carrier installation kit for GM 8.2″ & 8.5″ differential. This kit contains carrier bearings, races and shims.

Product Features:
  • Fits GM 7.5″, 7.625″ 8.2″ and 8.5″
  • Includes carrier bearings and races and “super” carrier shim kit
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1979 Pontiac Firebird Differentials

Maybe you’re in the middle of a full rebuild of that 1979 Pontiac Firebird. Maybe you just need a couple of Differentials. Either way, Advance Auto Parts has 257 different Differentials in our inventory ranging from $1.99 to $1,566.99. That means you can find the exact parts or products you need to keep that 1979 Pontiac Firebird running smoothly.

Differentials are only as good as their brand. We stock 14 different brands to make sure you have plenty of trusted parts to choose from for your 1979 Pontiac Firebird. Valvoline, FELPRO, and Yukon Gear are just some of the brands we stock. Search for brands you know or compare prices and reviews to help you decide!

We know you’ll find the perfect Differentials for your 1979 Pontiac Firebird, but don’t take our word for it – read our customer ratings and reviews and buy with confidence. Out of the 5,120 reviews in this category, some of the top rated parts include Differential Shaft Lock Bolt with 4.0 stars and Bearings with 3.9 stars.

So if you’re in the market for aftermarket Differentials to keep your 1979 Pontiac Firebird rolling for years to come, look no further. Shop online and have your products shipped direct to your door, or pick up at the nearest Advance Auto Parts location today!

Differentials Brands To Make Your 1979 Pontiac Firebird Last

Simple repair, complete replacement, or a full rebuild. No matter the job, your 1979 Pontiac Firebird demands trusted brand parts and products to keep it running. Many trusted brands of Differentials make up Advance Auto Parts’ inventory, and all are ready to help make your Firebird the best it can be. Be sure to browse some of our top Differentials brands and parts.

Popular Driveworks Differentials

We carry Driveworks parts in our stock across Differential Pinion Seals categories, plus more. For a 1979 Pontiac Firebird, our most popular Driveworks Differentials include:
Oil Seal
from $7.79
(1)
Oil Seal
Differential Pinion Seals

Top 1979 Pontiac Firebird Differentials from Felpro

Felpro products are another trusted brand when it comes to Differentials for your 1979 Pontiac Firebird. Popular Felpro parts include:
Differential Cover Gasket
from $9.99
(195)
Differential Cover Gasket
Rear Differential Cover Gaskets

FAQs for 1979 Pontiac Firebird Differentials

What are the most purchased Differentials for the 1979 Pontiac Firebird?

Out of 257 Differentials for the 1979 Pontiac Firebird, the most popular in our inventory are:
DEX/MERC Automatic Transmission Fluid, 1 Gallon
from $35.99
(17)
DEX/MERC Automatic Transmission Fluid, 1 Gallon
Differential Oil
3 Qt - 80W90 Conventional Gear Oil With Posi Additive
from $57.99
This product is not rated
3 Qt – 80W90 Conventional Gear Oil With Posi Additive
Differential Oil

What are the top-rated 1979 Pontiac Firebird Differentials?

Top-rated Differentials for your 1979 Pontiac Firebird based on customer reviews/ratings are:
Differential Shaft Lock Bolt
from $5.99
(11)
Differential Shaft Lock Bolt
“great”
Bearings
from $23.99
(7)
Bearings
“Good price”
Differential Master Bearing Kit - Koyo
from $156.99
(5)
Differential Master Bearing Kit – Koyo
“was delivered as promised and on time”