1981 Pontiac Catalina Differentials

Essential 1981 Pontiac Catalina Differentials

Yukon Gear – Pinion Seal For GM 8.5", 8.2", Buick, Oldsmobile, And Pontiac (Part No.30017)

Pinion Seal For GM 8.5", 8.2", Buick, Oldsmobile, And Pontiac

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$9.99
Pinion seal for GM 8.5″, 8.2″, Buick, Oldsmobile, and Pontiac.Yukon Mighty seal.

Product Features:
  • Pinion seal
  • Fits GM 8.5″ rear, 8.2″ and 8.2″ in Buick, Oldsmobile and Pontiac
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Powertrax – Lock Right Locker (Part No.1940-LR)

Lock Right Locker

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$441.99
The Powertrax Lock-Right ultra-strength alloy locker’s straight-line performance is equal to a solid spool, but automatically unlocks in turns. Best suited for extreme off-road to severe on-road use, Powertrax Lock Right lockers replace the spider gears in your open differential carrier using basic tools and without affecting your ring and pinion settings. The whole job can be done in your driveway in a couple of hours, pin included! 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!The Powertrax® Lock-Right Locker provides outstanding traction for off-road machines and race vehicles. Powertrax No-Slip Traction Systems deliver excellent performance to street-driven cars and trucks.
  • Powertrax® lockers range from the original, Lock-Right for serious straight-line performance, to the No-Slip traction system for street-able vehicles.
  • Powertrax® 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.
  • Powertrax® = Extreme Traction Systems!
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    Driveworks – Taper Bearing Cone (Part No.S-M-86649)

    Taper Bearing Cone

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    $8.79
    Value-priced bearing meets all cataloged application requirements.

    Product Features:
    • Brand may vary by location
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    Richmond Gear – MiniSpool (Part No.78-7528-1)

    MiniSpool

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    $151.99
    MiniSpool

    Motive Gear – Differential Master Bearing Kit – Koyo (Part No.R10CRMK)

    Differential Master Bearing Kit - Koyo

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    $113.99
    Motive Gear Differential Bearing Kits Include Front & Rear Pinion Bearing, Pinion Seal, Carrier Bearings, Pilot Bearing Where Applicable, Gear Marking Compound, Crush Sleeve, Pinion Nut, Brush, Thread Locking Compound And Cover Gasket Or Rtv

    Product Features:
    • MASTER BRG KIT 8.2 CAR
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    Yukon Gear – Pinion Depth Shims For GM 7.5", 7.75", 8.2" & 12 Bolt Truck (Part No.55008)

    Pinion Depth Shims For GM 7.5", 7.75", 8.2" & 12 Bolt Truck

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    $21.99
    Product Features:
    • Pinion depth shims for GM 7.5″, 7.625″, 7.6 IFS, 7.6 IRS, 7.75″, 8.2″, 1955-1964 passenger car and 12 bolt car and truck
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    Mr. Gasket – Differential Cover Kit (Part No.9891)

    Differential Cover Kit

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    $65.99
    Add some bling to the underside of your car with Mr. Gasket’s chrome differential cover. This chrome-plated steel cover is made to fit GM 10-bolt with 8 1/2 in ring gear. Is a complete kit with a gasket and bolts.

    Product Features:
    • Made Of Chrome Plated Steel
    • Fits GM 8.5-Inch 10 Bolt
    • Complete Kit With Gasket And Bolts
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    Yukon Gear – Pinion Install Kit For GM 8.5" Oldsmobile Rear (Part No.13071)

    Pinion Install Kit For GM 8.5" Oldsmobile Rear

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    $249.99
    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 8.5″ Oldsmobile with 28 spline axles
    • Fits 8.5″ Oldsmobile with 31 spline axles
    • Included are pinion bearings and races, pinion seal, crush sleeve, complete pinion shim kit, and marking compound with brush.
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    Yukon Gear – Dura Grip Positraction For GM 7.625" With 28 Spline Axles, 3.23 & Up (Part No.26018)

    Dura Grip Positraction For GM 7.625" With 28 Spline Axles, 3.23 & Up

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    $829.99
    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 7.625″ with 28 spline axles
    • 3.23 ratio and up 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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    Yukon Gear – Dura Grip Case, GM 7.5 & 7.625", 3.23 & Up (Part No.20106)

    Dura Grip Case, GM 7.5 & 7.625", 3.23 & Up

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    $399.99
    GM 7.5″ & 7.6″ DURA GRIP case, bare, 3.23 & up, 26spline & 28spline.

    Product Features:
    • Dura Grip positraction carrier case
    • Does not include spider gears
    • Fits GM 7.5″ and 7.625″
    • 3.23 and up ratios only
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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 – 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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    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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    Pro-King – Differential Crush Sleeve (Part No.742G034)

    Differential Crush Sleeve

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    $2.99
    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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    Motive Gear – Differential Carrier Shim Kit (Part No.1101)

    Differential Carrier Shim Kit

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    $8.49
    High-quality Differential Carrier Shim Kit

    Product Features:
    • CARRIER SHIMS 12 BOLT GM CAR & TRUCK ALSO GM8.6″ 99-ON
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    Pro-King – Differential Cross Shaft (Part No.742G930)

    Differential Cross Shaft

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    $2.79
    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 – Clutch Guide For GM 7.5" & 7.6" Dura Grip (Part No.33251)

    Clutch Guide For GM 7.5" & 7.6" Dura Grip

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    $10.99
    Product Features:
    • Clutch guide
    • Fits GM 7.5″ and 7.625″ Dura Grip
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    Yukon Gear – Minor Install Kit For GM 8.5" Oldsmobile 442 And Cutlass Differential (Part No.12058)

    Minor Install Kit For GM 8.5" Oldsmobile 442 And Cutlass Differential

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    $156.99
    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 8.5″ Oldsmobile with 31 spline axles
    • Included are a pinion seal, crush sleeve, complete shim kit, marking compound and brush.
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    National – Shaft Repair Sleeve (Part No.99170)

    Shaft Repair Sleeve

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    $41.99
    National® has built a reputation as one of the most respected names in the industry. We have offered premium sealing solutions for more than 75 years. Our design team keeps pace with the industry and provides advanced solutions for today’s vehicles.

    Product Features:
    • Designed to repair damaged, grooved or worn shafts
    • Durable stainless steel construction for corrosion-free sealing surface that surpasses most original shaft specifications
    • Ideal for a shaft where indications of seal wear, such as tracks or grooves have developed
    • Ultra-thin construction (0.01/0.25mm wall thickness) allows original seal size to be used with minimal additional lip loading
    • Easy to install with removable flange and installation tool
    • Installation tool reduces sleeve distortion and allows for installation without removal from the shaft
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    Yukon Gear – Posi Shim Kit For GM 7.5" & 7.625" Eaton Positraction (Part No.16047)

    Posi Shim Kit For GM 7.5" & 7.625" Eaton Positraction

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    $42.99
    Product Features:
    • Shim kit
    • Fits GM 7.5″ and 7.625″ with Eaton positraction
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    Yukon Gear – GM 7.5" Standard Open Side Gear Thrust Washer (Part No.33389)

    GM 7.5" Standard Open Side Gear Thrust Washer

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    $11.99
    GM 7.5″ standard Open side gear thrust washer.

    Product Features:
    • Side gear thrust washer
    • Fits GM 7.5″
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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

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    $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 – 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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    Mr. Gasket – Differential Gasket (Part No.84B)

    Differential Gasket

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    $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 – Yoke For 8.5" Or 8.6" GM (Mech 3R) With A U/Joint Size And Triple Lip Design (Part No.41071)

    Yoke For 8.5" Or 8.6" GM (Mech 3R) With A U/Joint Size And Triple Lip Design

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    $226.99
    Yukon yoke for 8.5″ or 8.6″ GM (mech 3R) with a U/joint size and triple lip design. 2.556″ snap ring span, 1.125″ cap diameter. Inside snap ring. This yoke uses inside snap rings. All Yukon yokes come with a one year warranty against manufacturing defects.

    Product Features:
    • Fits GM 8.5″ and 8.6″
    • 30 spline
    • Mechanics 3R u-joint size
    • 2.556″ snap ring span
    • 1.125″ cap diameter
    • Inside snap ring design
    • Strap style
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    Motive Gear – Differential Mini Spool (Part No.MS7.5-28)

    Differential Mini Spool

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    $101.99


    Product Features:
    • MINI SPOOL GM 7 1/2″ 28 SPLINE
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    Yukon Gear – Super Carrier Shim Kit For Ford 7.5", GM 7.5", 8.2" & 8.5" (Part No.55001)

    Super Carrier Shim Kit For Ford 7.5", GM 7.5", 8.2" & 8.5"

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    $59.99
    Product Features:
    • Super carrier shim kit for Ford 7.5″, GM 7.5″, 7.625″, 7.6″ IFS, 7.6″ IRS, 7.75″, 8.2″, 8.2″ Buick, Oldsmobile and Pontiac and GM 8.5″ front and rear
    • Interlocking design makes installation much easier
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    USA Standard Gear – Ring & Pinion Gear Set For GM 7.5" In A 3.08 Ratio (Part No.36193)

    Ring & Pinion Gear Set For GM 7.5" In A 3.08 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
    • 3.08 ratio
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    1981 Pontiac Catalina Differentials

    Maybe you’re in the middle of a full rebuild of that 1981 Pontiac Catalina. Maybe you just need a couple of Differentials. Either way, Advance Auto Parts has 282 different Differentials in our inventory ranging from $1.99 to $1,153.99. That means you can find the exact parts or products you need to keep that 1981 Pontiac Catalina running smoothly.

    Differentials are only as good as their brand. We stock 11 different brands to make sure you have plenty of trusted parts to choose from for your 1981 Pontiac Catalina. Driveworks, National, 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 1981 Pontiac Catalina, but don’t take our word for it – read our customer ratings and reviews and buy with confidence. Out of the 1,042 reviews in this category, some of the top rated parts include Differential Ring And Pinion with 4.2 stars and Differential Master Bearing Kit – Koyo with 3.8 stars.

    So if you’re in the market for aftermarket Differentials to keep your 1981 Pontiac Catalina 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 1981 Pontiac Catalina Last

    Simple repair, complete replacement, or a full rebuild. No matter the job, your 1981 Pontiac Catalina 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 Catalina the best it can be. Be sure to browse some of our top Differentials brands and parts.

    Popular Felpro Differentials

    We carry Felpro parts in our stock across Rear Differential Cover Gaskets categories, plus more. For a 1981 Pontiac Catalina, our most popular Felpro Differentials include:
    DIFFERENTIAL GASKET
    from $7.99
    (45)
    DIFFERENTIAL GASKET
    Rear Differential Cover Gaskets

    FAQs for 1981 Pontiac Catalina Differentials

    What are the most purchased Differentials for the 1981 Pontiac Catalina?

    Out of 282 Differentials for the 1981 Pontiac Catalina, the most popular in our inventory are:
    Taper Bearing Set
    from $10.29
    (38)
    Taper Bearing Set
    Differential Bearings
    Bearings
    from $16.99
    (25)
    Bearings
    Differential Bearings
    Differential Shaft Lock Bolt
    from $5.99
    (11)
    Differential Shaft Lock Bolt
    Differential Pinion Shaft Lock Bolts

    What are the top-rated 1981 Pontiac Catalina Differentials?

    Top-rated Differentials for your 1981 Pontiac Catalina based on customer reviews/ratings are:
    Differential Ring And Pinion
    from $342.99
    (23)
    Differential Ring And Pinion
    “So far so good.”
    Differential Master Bearing Kit - Koyo
    from $156.99
    (5)
    Differential Master Bearing Kit – Koyo
    “was delivered as promised and on time”
    Differential Ring and Pinion
    from $241.99
    (4)
    Differential Ring and Pinion
    “Perfect match and easy install”