Differentials

Differentials

  • Auburn Gear® - Grip-N-Loc™ Differential
    Auburn Gear®Grip-N-Loc™ Differential
    0
    # sp231159
    Grip-N-Loc™ Differential by Auburn Gear®. Auburn Gear’s most advanced limited slip differential, the Grip-N-Loc™, builds upon exclusive technologies found in the previous limited slip line, but is reengineered to be more robust to...
    Upgrades vehicles for safe transfer of increased power/torque across the axleCase material is up to 50% stronger than OE cases
    $461.44 - $967.27
  • Richmond® - Excel™ Ring and Pinion Gear Set
    Richmond®Excel™ Ring and Pinion Gear Set
    0
    # sp135912
    Excel™ Ring and Pinion Gear Set by Richmond®. Dominate the track or hit the trails with confidence by fine tuning your vehicle for neck-breaking speed and performance with this premium differential that delivers the ultimate in high...
    Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
    $5.51 - $798.02
  • Yukon Gear & Axle® - Differential Ring and Pinion Pro Kit
    Yukon Gear & Axle®Differential Ring and Pinion Pro Kit
    0
    # sp224077
    Differential Ring and Pinion Pro Kit by Yukon Gear & Axle®. Yukon Gear & Axle manufactures the highest quality differential parts on the market. With products that dominate rugged off-road terrain, reliably conquer the highway, and...
    Pro Kits feature the highest quality componentsGet vehicles off the lift and back on the road quickly
    $480.89 - $2,899.89
  • Motive Gear® - Ring and Pinion Gear Set
    Motive Gear®Ring and Pinion Gear Set
    1
    # sp109384
    Ring and Pinion Gear Set by Motive Gear®. Motive Gear stock performance ring and pinions are excellent replacements for OE. Experienced installers prefer ring and pinions for easy setup, superior strength, quality, and vast ratio...
    Quiet operationComputer controlled heat treatment
    $180.88 - $2,485.41
  • Powertrax® - Lock Right Differential
    Powertrax®Lock Right Differential
    1
    # sp23684
    Lock Right Differential by Powertrax®. Powertrax Lock Right performance lockers straight-line performance is equal to a solid spool axle, yet they automatically unlock during turns. When extreme traction output and high-strength are...
    Brute force devices for rugged applicationsReplacement of differential case not required
    $257.27 - $530.83
  • ARB® - Air Locker
    ARB®Air Locker
    0
    # sp93982
    Air Locker by ARB®. Created to provide 100% traction on demand, without sacrificing any of your vehicle's highway driving performance, ARB Air Locker™ employ a 12 volt ARB Air Compressor designed to activate (and deactivate) a solid...
    Differential CaseFlange Cap Assembly
    $1,091.00 - $1,380.00
  • Yukon Gear & Axle® - Zip Locker
    Yukon Gear & Axle®Zip Locker
    2
    # sp9606
    Zip Locker by Yukon Gear & Axle®. The Yukon Zip Locker is the latest in on-demand traction. Its air-operated design allows you to switch from an open differential to 100% lockup when you need it, giving you the ultimate in driver...
    Air operated locker provides on-demand tractionForged case & 8620 internals for added strength
    $1,243.89 - $1,399.89
  • Eaton® - Detroit Truetrac™ Differential
    Eaton®Detroit Truetrac™ Differential
    0
    # sp93014
    Detroit Truetrac™ Differential by Eaton®. The Detroit Truetrac™ is a helical-gear style performance differential that maximizes wheel traction and enhances driving and handling characteristics. Operation of the Truetrac is smooth,...
    Helical-style pinion gearsLimited-slip operation
    $587.99 - $1,206.99
  • Richmond® - Excel™ Differential Carrier
    Richmond®Excel™ Differential Carrier
    0
    # sp135910
    Excel™ Differential Carrier by Richmond®. Dominate the track or hit the trails with confidence by fine tuning your vehicle for neck-breaking speed and performance with this premium differentials and components that deliver the...
    Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
    $70.05 - $345.98
  • Richmond® - Mini Spool
    Richmond®Mini Spool
    0
    # sp109750
    Mini Spool by Richmond®. Dominate the track or hit the trails with confidence by fine tuning your vehicle for neck-breaking speed and performance with this premium differential component that delivers the ultimate in high strength and...
    Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
    $31.82 - $130.71
  • Yukon Gear & Axle® - High Performance Ring and Pinion Gear Set
    Yukon Gear & Axle®High Performance Ring and Pinion Gear Set
    1
    # sp9601
    High Performance Ring and Pinion Gear Set by Yukon Gear & Axle®. Yukon Ring and Pinion sets give you the confidence of knowing you’re running gears designed for the harshest of conditions. Whether it’s on the street, off-road, or at...
    Smooth finishEasy Set-Up
    $188.76 - $2,299.89
  • ACDelco® - GM Original Equipment™ Differential Carrier
    ACDelco®GM Original Equipment™ Differential Carrier
    0
    # sp128452
    GM Original Equipment™ Differential Carrier by ACDelco®. Don't be "indifferent" toward your differential. It plays a vital role in moving your vehicle and ensuring a smooth ride. Designed utilizing the latest technology,...
    Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
    $87.29 - $1,487.72
  • Yukon Gear & Axle® - Dura Grip™ Differential
    Yukon Gear & Axle®Dura Grip™ Differential
    0
    # sp109382
    Dura Grip™ Differential by Yukon Gear & Axle®. The Yukon Dura Grip an example of the popular clutch plate limited slips that appeared as OE equipment. Steel clutch plates, half of which are covered with a friction lining material, are...
    Provides aggressive yet smooth traction to give you the confidence and performance you needFully rebuildable 4 spring design with composite clutches
    $668.89 - $1,499.89
  • Powertrax® - No-Slip Differential
    Powertrax®No-Slip Differential
    2
    # sp23685
    No-Slip Differential by Powertrax®. 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...
    Extreme Traction PerformanceEnables a 2 Wheel Drive to outperform a 4 Wheel Drive in poor traction conditions
    $326.69 - $610.46
  • ACDelco® - Genuine GM Parts™ Differential Carrier
    ACDelco®Genuine GM Parts™ Differential Carrier
    0
    # sp216272
    Genuine GM Parts™ Differential Carrier by ACDelco®. Designed utilizing the latest technology, this product by ACDelco features premium quality and will perform better than advertised. Perfect for your vehicle and lifestyle, it is...
    Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
    $15.76 - $3,143.18
  • Mopar® - Differential Pinion Flange
    Mopar®Differential Pinion Flange
    0
    # sp205776
    Differential Pinion Flange by Mopar®. Want your prized possession to look and perform the way it was designed to? Then top-of-the-line Mopar automotive parts and accessories are for you. Made using the latest manufacturing technology to...
    Ideal solution to keep your vehicle in top shapeCrafted from premium-grade materials and the latest technology
    $11.01 - $459.71
  • Spicer® - Ring and Pinion Gear Set
    Spicer®Ring and Pinion Gear Set
    0
    # sp219498
    Ring and Pinion Gear Set by Spicer®. All Spicer ring and pinion gears are designed and tested to meet original equipment specifications. When you purchase genuine Spicer ring and pinion gear sets, you can be confident the ring and...
    Premium heat treatment processesOptimal tooth profiles
    $73.35 - $1,316.77
  • Powertrax® - Grip Pro™ Traction System
    Powertrax®Grip Pro™ Traction System
    0
    # sp23683
    Grip Pro™ Traction System by Powertrax®. The Powertrax Grip Pro is a gear driven limited slip differential designed to be among the strongest and most durable in the industry. It combines the smooth operation of a limited-slip...
    Comes Fully AssembledDelivers Progressive and Variable Traction
    $537.69 - $1,081.78
  • Motive Gear® - Performance Ring and Pinion Gear Set
    Motive Gear®Performance Ring and Pinion Gear Set
    1
    # sp229624
    Performance Ring and Pinion Gear Set by Motive Gear®. Motive Gear Performance ring and pinions are perfect for dedicated racing or off-road vehicle. Gear sets are made from first-run steel, Motive Gear never use recycled metal. This...
    Central contact patternCNC start to finish
    $260.99 - $1,059.99
  • Richmond® - Street Gear Ring and Pinion Gear Set
    Richmond®Street Gear Ring and Pinion Gear Set
    0
    # sp109758
    Street Gear Ring and Pinion Gear Set by Richmond®. Ring Gear Material: 8620 Steel. Richmond Gear ring and pinions are perfect for any vehicle where performance and durability matters. Made from first-run steel, never recycled material,...
    Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
    $240.99 - $719.99
  • Spicer® - Differential Case
    Spicer®Differential Case
    0
    # sp219483
    Differential Case by Spicer®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind. It will meet your needs and deliver great quality at an...
    High quality at an affordable priceExpertly made from premium materials
    $32.17 - $1,506.77
  • Powertrax® - Grip Lok Differential
    Powertrax®Grip Lok Differential
    0
    # sp23681
    Grip Lok Differential by Powertrax®. If you are looking for the ultimate in traction, the Powertrax Grip Lok can handle the torque of engines producing up to 550hp. It combines the fully-automatic locking action of our traditional...
    Comes Fully AssembledTraction Adding Differential Technology
    $497.73 - $804.93
  • Eaton® - Posi™ Differential
    Eaton®Posi™ Differential
    0
    # sp93020
    Posi™ Differential by Eaton®. The Eaton Posi limited-slip differential prevents wheel slip before it can get started. To do that, carbon disc clutch packs, preloaded by a central spring assembly, are located behind each differential...
    Superior rebuildable designRace-bred carbon friction discs
    $588.99 - $829.99
  • Original Equipment® - Axle Shaft Seal
    Original Equipment®Axle Shaft Seal
    0
    # sp135844
    Axle Shaft Seal by Original Equipment®. Designed utilizing the latest technology, this product by Original Equipment features premium quality and will perform better than advertised. Perfect for your vehicle and lifestyle, it is...
    Perfect replacement for your damaged or worn out original partMade using high-grade materials for long-lasting dependability
    $5.61 - $44.27
  • Revolution Gear & Axle® - Ring and Pinion Gear Set
    Revolution Gear & Axle®Ring and Pinion Gear Set
    0
    # sp135061
    Ring and Pinion Gear Set by Revolution Gear & Axle®. All Revolution Gear and Axle Gear Sets are made from top quality 8620 Steel and are precision heat treated to OEM specifications, making for the best aftermarket gears available. All...
    Made to promote and inspire your off-road adventuresTested in demanding off-road conditions for maximum durability
    $170.99 - $322.99
  • Ishino® - Axle Shaft Seal
    Ishino®Axle Shaft Seal
    0
    # sp264781
    Axle Shaft Seal by Ishino®. Designed utilizing the latest technology, this product by Ishino features premium quality and will perform better than advertised. Perfect for your vehicle and lifestyle, it is manufactured to meet or exceed...
    Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
    $3.93 - $39.29
  • TRQ® - Drivetrain Kit
    TRQ®Drivetrain Kit
    0
    # sp259341
    Drivetrain Kit by TRQ®. TRQ auto parts are manufactured in state-of-the-art facilities, using the highest quality materials, and rigorously tested to ensure ultimate reliability and direct fit for your vehicle.
    Developed to comply with rigorous quality standardsExceptional quality at a budget-friendly price
    $117.95 - $692.95
  • ACDelco® - GM Genuine Parts™ Differential Carrier Fill Plug
    ACDelco®GM Genuine Parts™ Differential Carrier Fill Plug
    0
    # sp259284
    GM Genuine Parts™ Differential Carrier Fill Plug by ACDelco®. GM Genuine Parts Multi Purpose Threaded Plugs are designed, engineered, and tested to rigorous standards, and are backed by General Motors. GM Genuine Parts are the true OE...
    Some GM Genuine Parts may have formerly appeared as ACDelco GM Original Equipment (OE)GM Genuine Parts are designed, engineered and tested to rigorous standards, and are backed by General Motors
    $7.72 - $30.58
  • ACDelco® - GM Genuine Parts™ Differential Clutch Pack Clip
    ACDelco®GM Genuine Parts™ Differential Clutch Pack Clip
    0
    # sp259285
    GM Genuine Parts™ Differential Clutch Pack Clip by ACDelco®. WIDTH .71 INCH. GM Genuine Parts Clutch Friction Discs are designed, engineered, and tested to rigorous standards, and are backed by General Motors. GM Genuine Parts are the...
    Some GM Genuine Parts may have formerly appeared as ACDelco GM Original Equipment (OE)GM Genuine Parts are designed, engineered and tested to rigorous standards, and are backed by General Motors
    $8.63
  • ACDelco® - GM Genuine Parts™ Differential Drain Plug
    ACDelco®GM Genuine Parts™ Differential Drain Plug
    0
    # sp259288
    GM Genuine Parts™ Differential Drain Plug by ACDelco®. GM Genuine Parts Multi Purpose Threaded Plugs are designed, engineered, and tested to rigorous standards, and are backed by General Motors. GM Genuine Parts are the true OE parts...
    Some GM Genuine Parts may have formerly appeared as ACDelco GM Original Equipment (OE)GM Genuine Parts are designed, engineered and tested to rigorous standards, and are backed by General Motors
    $7.72 - $14.97




A vehicle is a complex system with a number of parts that always have to function properly. When it comes to distributing engine power between the wheels, a differential may be a concern. It's an essential mechanical device that sends torque to the drive wheels and makes them revolve at different speeds in relation to each other. But for the differential, the rims would rotate at the same speed and hence make cornering difficult.

As a rule, front-wheel-drive vehicles have the differential on the front axle, while in rear-wheel-drive cars it is found between the rear rims. Apart from the front and rear differentials, 4WD cars are also equipped with a central diff, which is between the front and rear axles. Open and limited slip differentials (LSD) are the most common types used in today's cars. The open diff has a series of gears allowing the wheels to rotate at different speeds when turning. Each drive wheel gets an equal portion of engine power. The LSD employs several clutches and a spring pack to allow the rims to rotate at different rates, though dividing torque between them unequally while turning. As a rule, the wheel with better traction gets more power.

The reality is that each type of the differential has its drawbacks. For instance, the open differential might get you into trouble when one of the tires hits a slippery surface: the wheel starts spinning and gets more torque than that with good traction. The disadvantage with the LSD is when you get started on a slippery road from a stopped position, since the wheel that gets more power from the LSD loses traction. As a result, the vehicle will simply slip and you'll experience poor handling. Still, the LSD has more pros if compared to the open diff.

Nothing lasts forever, and your differential, whether it's open or LSD, is no exception. If we talk about the front differential, the first trouble it can face is a lack of differential fluid. Pressure, friction, heat, or moisture can cause the lubricant to evaporate and make the internal components go wrong. The rear differential seems to have even more bothersome. Besides insufficient fluid level, there also may be another headache: bad U-joints of the driveshaft can affect the diff, making it work harder than usual. A clanking or rattling noise coming from the rear when the car is put into drive will be a hint.

It's definitely a bad experience when you suddenly discover what a malfunctioning differential is. Fortunately, there are a few useful tips on how to help a differential serve a longer period and save you from pricey repair bills. First, never ignore the noises coming from the diff. No matter what type of differential your vehicle employs, don't forget to check the device at least every 3,000 miles. In case the problem is somewhat more serious than simply adding fluid, let a professional mechanic handle it.

Performance transaxles, transfer cases, and differentials provide the gearing that enables you to keep your engine in the powerband, for neck snapping acceleration and high speed. A different ratio ring & pinion set is a great way to get more giddyup off the line but it’s also a necessity to maintain performance on trucks and SUVs when you bolt on a tall set of wheels and tires. And to make sure you’re not stuck with one wheel spinning, bolt in a limited slip differential or locking differential and get traction on any surface.

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Differentials Reviews

48 reviews
1 of 5
Kit Doesn't Come with Correct Side Adjustor Bearings or Seals
Transtar Industries® - Differential Rebuild Bearing Kit
Needle bearings and seals for side adjustors are incorrect size and rather than replace them you have to return whole kit. Very disappointing considering the difficulty in finding parts for a 2006 GTO.
Posted by Customer / February 08, 20212006 Pontiac GTO
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