1979 GMC C2500 Differentials

Essential 1979 GMC C2500 Differentials

Yukon Gear – Dura Grip Positraction For GM 9.5" With 33 Spline Axles (Part No.26025)

Dura Grip Positraction For GM 9.5" With 33 Spline Axles

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$1025.00
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 9.5″
  • 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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Yukon Gear – 9.5" GM Cover Gasket (Part No.23023)

9.5" GM Cover Gasket

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$13.99
9.5″ GM cover gasket.

Product Features:
  • Cover gasket
  • Fits GM 9.5″
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USA Standard Gear – Master Overhaul Kit for the GM 8.5 Differential (Part No.37055)

Master Overhaul Kit for the GM 8.5 Differential

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$206.99
USA Standard Master Overhaul kits let you finish your install with confidence. This kit uses Koyo bearings and races. Included 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), threading locking compound, marking compound with brush and gasket.

Product Features:
  • Fits GM 8.5″ rear
  • Uses Koyo bearings and races
  • Included are carrier 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 – Pinion Install Kit For GM 8.5" Differential (Part No.13069)

Pinion Install Kit For GM 8.5" Differential

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$173.99
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, pinion nut, 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 GM 8.5″ rear
  • 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 Carrier Gear Kit (Part No.GM8.6BI)

Differential Carrier Gear Kit

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$115.99


Product Features:
  • GM8.6″ INTERNAL KIT (OPEN) 30 SPL.
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Yukon Gear – Redline Synthetic "Shock Proof" Oil – 4 Quarts (Part No.15004)

Redline Synthetic "Shock Proof" Oil - 4 Quarts

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$137.99
Redline Synthetic “Shock Proof” Oil. 4 Quarts.

Product Features:
  • Includes four quarts of Redline Shockproof oil
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Driveworks – Cylindrical Bearing (Part No.S-R1561TV)

Cylindrical Bearing

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$31.99
Value-priced bearing meets all cataloged application requirements.

Product Features:
  • Brand may vary by location
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Yukon Gear – Bearing Install Kit For ’88 And Older 10.5" GM 14 Bolt Truck Differential (Part No.11056)

Bearing Install Kit For '88 And Older 10.5" GM 14 Bolt Truck Differential

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$369.99
Yukon Bearing installation kits are perfect for shops & builders who have shims on the shelf and are looking to save cost over a Master Overhaul kit. This kit uses Timken bearings and races along with all high quality small parts. kit includes carrier bearings and races, pinion bearings and races, pinion seal, crush sleeve (if applicable), oil baffles and slingers (if applicable), marking compound and 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 ring & pinion set.

Product Features:
  • Fits 1988 and down GM 10.5″ 14 bolt truck
  • Included are carrier bearings and races, pinion bearings and races, pinion seal, crush sleeve, pilot bearing, marking compound and brush.
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Yukon Gear – Pinion Nut Washer (Part No.33167)

Pinion Nut Washer

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$14.99
Pinion nut washer for GM 7.2″ IFS, 7.5″, 7.6″, 7.6″ IFS, 8.5″, 8.6″ & 9.5″.

Product Features:
  • Pinion nut washer for GM 7.2″ IFS, 7.5″, 7.625″, 7.6″ IFS, 8.5″, 8.6″ and 9.5″.
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Pro-King – Differential Internal Nest Kit (Part No.742J717)

Differential Internal Nest Kit

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$219.99
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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Dorman – Help – Pinion Crush Sleeves (Part No.81057)

Pinion Crush Sleeves

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$5.29
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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Spectre – Differential Cover (Part No.60879)

Differential Cover

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$189.99
Spectre’s Polished Aluminum Differential Covers feature a finned design and 10 bolt assembly for optimum fit and function. Includes 10 SAE standard bolts for installation. You’ll need to supply your own bolts if your vehicle uses metric bolts. Manufactured using high quality materials this product was designed to perform as well as they look.

Product Features:
  • Polished aluminum
  • 10 bolt cover with finned design
  • Gasket included
  • 10 gold Iridite 3/8 inch -18 x 3/4 inch differential cover bolts included
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Yukon Gear – Super Carrier Shim Kit For GM 9.5" (Part No.55003)

Super Carrier Shim Kit For GM 9.5"

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$29.99
9.5″ GM differential carrier Supershim kit.

Product Features:
  • Super carrier shim kit for GM 9.5″
  • Interlocking design makes installation much easier
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Dorman – Differential Pinion Yoke Assembly (Part No.697-531)

Differential Pinion Yoke Assembly

from

$315.99
Worn or damaged differential end yoke causing driveline vibrations? This direct replacement end yoke matches the original equipment part for a trustworthy repair and reliable performance.

Product Features:
  • Direct replacement – this differential end yoke matches the fit and construction of the original yoke
  • Excellent value – this replacement end yoke offers original equipment quality at a fraction of the price of dealer parts
  • Quality materials – this end yoke is machined from cast iron for strength and is precision machined for reliability
  • Validated fit – this differential end yoke has been tested to confirm accurate fit
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Yukon Gear – Standard Open And Gov-Loc Cross Pin For 9.5" GM (Part No.33402)

Standard Open And Gov-Loc Cross Pin For 9.5" GM

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$32.99
Standard open and Gov-Loc cross pin for 9.5″ GM.

Product Features:
  • Cross pin shaft
  • Fits GM 9.5″
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Yukon Gear – 18 Plate Steel Clutches For GM 8.2", GM 8.5", 12T, 12P, Ford 8.8" & Cast Iron ‘Vette (Part No.16110)

18 Plate Steel Clutches For GM 8.2", GM 8.5", 12T, 12P, Ford 8.8" & Cast Iron 'Vette

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$483.99
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
  • 18 piece kit
  • Steel clutches
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Dorman – Differential Ring and Pinion Set (Part No.697-303)

Differential Ring and Pinion Set

from

$307.99
This differential ring and pinion directly replaces the original equipment on specific vehicle years, makes and models.

Product Features:
  • Direct replacement – this ring and pinion set matches the fit and function of the original components on certain vehicle applications
  • Effective fix – eliminates grinding and whining from failed original bearings
  • Thoroughly tested – vehicle try-on testing and rigorous quality control measures ensure longevity
  • Trustworthy quality – backed by team of designers and engineers in the United States
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Yukon Gear – Standard Open Carrier Case, GM 10.5" 14 Bolt Truck, 4.10 & Down (Part No.20100)

Standard Open Carrier Case, GM 10.5" 14 Bolt Truck, 4.10 & Down

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$729.99
Product Features:
  • Standard open carrier case
  • Fits GM 10.5″ 14 bolt truck
  • 4.10 and down ratio only
  • Does not include spider gears
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Yukon Gear – Bearing Race Driver (Part No.56020)

Bearing Race Driver

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$215.99
Bearing race driver. No return.

Product Features:
  • Bearing race driver
  • Fits M802011 race
  • All steel construction
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Pro-King – Differential Pinion Shim Kit (Part No.742G200A)

Differential Pinion Shim Kit

from

$18.49
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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Motive Gear – Ring Gear Bolt (Part No.331421)

Ring Gear Bolt

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$9.99
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 o
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Yukon Gear – 1541H Alloy 8 Lug Rear Axle For GM 9.5" ’81-’95 Truck And ’83-’96 G30 (Part No.21252)

1541H Alloy 8 Lug Rear Axle For GM 9.5" '81-'95 Truck And '83-'96 G30

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$299.99
Yukon 1541H alloy 8 lug rear axle for GM 9.5″ ’81-’95 truck and ’83-’96 G30 with a length of 32-3/4″ inches and 33 splines. Yukon 1541H alloy axles offer a strength increase over stock while retaining a low cost. Yukon 1541H alloy rear axles come with a one year warranty against manufacturing defects. This is a C-clip axle.

Product Features:
  • 33 spline
  • 8 lug
  • 32.75″ long
  • Fits GM 9.5″ in 1981-1995 truck and 1983-1996 G30 van
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Yukon Gear – Set Up Bearing (Part No.56045)

Set Up Bearing

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$153.99
M802048 set-up bearing (one bearing). No return.

Product Features:
  • Set up bearing
  • Fits M802048 pinion bearing
  • Easily slips on and off pinion journal to allow for easier pinion depth adjustment
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USA Standard Gear – Spartan Locker For GM 8.5" With 30 Spline Axles, Includes Heavy-Duty Cross Pin Shaft (Part No.17041)

Spartan Locker For GM 8.5" With 30 Spline Axles, Includes Heavy-Duty Cross Pin Shaft

from

$649.99
The Spartan Locker, by USA Standard Gear, provides reliable traction at a low cost. Give your vehicle great traction and save some cash. Choose a Spartan Locker for better traction. The Spartan locker by USA standard gear is a mechanical locker that replaces the spiders in a standard case. The Spartan locker’s design does not use the thrust washers and has a revolutionary spring and pin design that makes installation a snap! The couplers and drivers are made from 9310 steel, for added strength. Each Spartan locker carries a one year warranty against defect.

Product Features:
  • Fits GM 18.5″ with 30 spline axles
  • Made from 9310 steel for added strength
  • Replaces the spiders in a standard carrier case
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Yukon Gear – Positraction Shim Kit (18 Shims) For GM 8.2", GM 8.5", 12T, 12P, Ford 8.8" & Cast Iron ‘Vette (Part No.16042)

Positraction Shim Kit (18 Shims) For GM 8.2", GM 8.5", 12T, 12P, Ford 8.8" & Cast Iron 'Vette

from

$41.99
Product Features:
  • Shim 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
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Driveworks – Tapered Cone/Cup Wheel Bearing Set (Part No.S-A-35)

Tapered Cone/Cup Wheel Bearing Set

from

$13.99
Value-priced bearing meets all cataloged application requirements.

Product Features:
  • Brand may vary by location
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Motive Gear – Differential Carrier (Part No.6258340)

Differential Carrier

from

$205.99


Product Features:
  • GM10.5″ 14 BOLT OPEN EMPTY CASE 4:56 & UP
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Pro-King – Differential Pinion Nut (Part No.744A961)

Differential Pinion Nut

from

$10.49
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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1979 GMC C2500 Differentials

Maybe you’re in the middle of a full rebuild of that 1979 GMC C2500. Maybe you just need a couple of Differentials. Either way, Advance Auto Parts has 169 different Differentials in our inventory ranging from $0.91 to $1,110.00. That means you can find the exact parts or products you need to keep that 1979 GMC C2500 running smoothly.

Differentials are only as good as their brand. We stock 13 different brands to make sure you have plenty of trusted parts to choose from for your 1979 GMC C2500. 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 GMC C2500, but don’t take our word for it – read our customer ratings and reviews and buy with confidence. Out of the 1,936 reviews in this category, some of the top rated parts include Differential Ring And Pinion with 5.0 stars and Differential Carrier Shim Kit with 2.7 stars.

So if you’re in the market for aftermarket Differentials to keep your 1979 GMC C2500 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 GMC C2500 Last

Simple repair, complete replacement, or a full rebuild. No matter the job, your 1979 GMC C2500 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 C2500 the best it can be. Be sure to browse some of our top Differentials brands and parts.

Popular Mr. Gasket Differentials

We carry Mr. Gasket parts in our stock across Rear Differential Cover Gaskets categories, plus more. For a 1979 GMC C2500, our most popular Mr. Gasket Differentials include:
Differential Gasket
from $18.09
(1)
Differential Gasket
Rear Differential Cover Gaskets

FAQs for 1979 GMC C2500 Differentials

What are the most purchased Differentials for the 1979 GMC C2500?

Out of 169 Differentials for the 1979 GMC C2500, the most popular in our inventory are:
Differential Cover Gasket
from $6.79
(13)
Differential Cover Gasket
Rear Differential Cover Gaskets
Differential Shaft Lock Bolt
from $5.99
(11)
Differential Shaft Lock Bolt
Differential Pinion Shaft Lock Bolts
3 Qt - Penzoil 80W90 Conventional Gear Oil
from $44.99
This product is not rated
3 Qt – Penzoil 80W90 Conventional Gear Oil
Differential Oil

What are the top-rated 1979 GMC C2500 Differentials?

Top-rated Differentials for your 1979 GMC C2500 based on customer reviews/ratings are:
Differential Ring And Pinion
from $350.99
(7)
Differential Ring And Pinion
“Great spark plugs.”
Differential Carrier Shim Kit
from $8.49
(3)
Differential Carrier Shim Kit
“worked great”
Taper Bearing Cone
from $17.99
(2)
Taper Bearing Cone
“good deal”