2003 GMC Sierra Differentials

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    • (0 reviews)
      # 503510299
      GMC Sierra 4WD with 35 Spline with Dana 60 Series Axle with 4.10 and Down Gear Ratio with Quadrasteer Axle 2003, Rear Zip Locker by Yukon Gear & Axle®. Location: Rear. The Yukon Zip Locker is the latest in on-demand traction. Its...
      Air operated locker provides on-demand tractionForged case & 8620 internals for added strength
      $958.80 - $1,111.16
    • (0 reviews)
      # 503303013
      GMC Sierra 2003, Air Locker by ARB®. Air locker locking differentials allow you to tackle the toughest terrain. The world's premier traction aid, ARB air lockers keep you moving in all conditions. Created to provide 100% traction on...
      Differential CaseFlange Cap Assembly
      $997.50
    • (0 reviews)
      # 503619005
      GMC Sierra with Open Differential 2003, No-Slip Traction System 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...
      Extreme Traction PerformanceEnables a 2 Wheel Drive to outperform a 4 Wheel Drive in poor traction conditions
      $443.21 - $488.68
    • (0 reviews)
      # 1029247502
      GMC Sierra 1500 with 1.31" Axle Shaft Diameter with GM 8.6" Series Axle with 2.73 and Up Gear Ratio with 10 Bolt 2003, ELocker™ Rear Differential by Eaton®. Location: Rear. The Eaton ELocker is an electronic, selectable differential...
      Selectable 'push-button' operationPositive-electronic locking mechanism
      $909.25
    • (0 reviews)
      # 503612302
      GMC Sierra 1500 with 2.73 and Up Gear Ratio 2003, Open Grip LS Traction System by Powertrax®. The Powertrax Grip LS, is a clutch-type differential in a forged steel case. This differential uses a set of carbon clutch discs to provide...
      Comes Fully AssembledCarbon Fiber and Steel Friction Plate Technology
      $443.35
    • (0 reviews)
      # 114983152
      GMC Sierra 2003, Rear Grizzly Locker by Yukon Gear & Axle®. Location: Rear. The Yukon Grizzly Locker is the ultimate in mechanical locking differentials for street, off-road, and drag racing. Grizzly Lockers provide 100% power to both...
      Available for many popular off-road & performance applicationsPatent pending design reduces common failures
      $509.82 - $1,223.00
    • (0 reviews)
      # 1029260520
      GMC Sierra 2003, Detroit Locker™ Rear Differential by Eaton®. Location: Rear. The Detroit Locker is a 100%-automatic locking differential that provides ultimate traction for mild to extreme vehicle applications. Its unique,...
      100% automatic locking - no driver action neededProvides maximum amount of traction to both wheel ends
      $796.67 - $1,060.49
    • (0 reviews)
      # 1029199512
      GMC Sierra 2003, Posi™ Rear Differential by Eaton®. Location: Rear. 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,...
      Superior rebuildable designRace-bred carbon friction discs
      $499.99 - $671.99
    • (0 reviews)
      # 503516188
      GMC Sierra 2003, Rear Dura Grip Positraction by Yukon Gear & Axle®. Location: Rear. 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...
      Provides aggressive yet smooth traction to give you the confidence and performance you needFully rebuildable 4 spring design with composite clutches
      $495.09 - $892.15
    • (0 reviews)
      # 503546347
      GMC Sierra 2003, Standard Open Carrier Case by Yukon Gear & Axle®. 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...
      Enables you to keep your engine in the powerband for more giddy-up and high speedAllows for getting superior traction on just about any brutal terrain
      $165.54 - $449.56
    • (0 reviews)
      # 503308202
      GMC Sierra 2003, Differential Master Overhaul Kit by Yukon Gear & Axle®. Yukon Master Overhaul kits give you all the high quality parts you need to start and finish every differential job. Yukon offers more tailor-made kits than any...
      Most complete kits on the marketComplete overhaul package to rebuild differential
      $211.42 - $504.70
    • (0 reviews)
      # 503478160
      GMC Sierra 2003, 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...
      Smooth finishEasy Set-Up
      $254.63 - $571.78
    • (0 reviews)
      # 114983216
      GMC Sierra with 30 Spline 2003, Rear Helical Gear Positraction by Yukon Gear & Axle®. Location: Rear. Dominate the track or hit the trails with confidence by fine tuning your vehicle for neck-breaking speed and performance with this...
      Enables you to keep your engine in the powerband for more giddy-up and high speedAllows for getting superior traction on just about any brutal terrain
      $560.70 - $1,092.07
    • (0 reviews)
      # 503383138
      GMC Sierra 2500 with GM 10.5" Series Axle 2003, Rear Ring and Pinion Gear Complete Package by Yukon Gear & Axle®. Location: Rear. Dominate the track or hit the trails with confidence by fine tuning your vehicle for neck-breaking speed...
      Enables you to keep your engine in the powerband for more giddy-up and high speedAllows for getting superior traction on just about any brutal terrain
      $1,377.26 - $1,492.55
    • (0 reviews)
      # 503400424
      GMC Sierra 2003, Differential Carrier by Motive Gear®. All Motive Gear products are engineered for their specific application and manufactured in state of the art facilities. All of company products undergo rigid quality control...
      Motive Gear uses the highest quality standards of manufacturingFrom machining and finishing to heat treatment company demand the best
      $108.89 - $177.58
    • (1 review)
      # 503451679
      GMC Sierra 2003, 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, we never use recycled metal....
      Central contact patternCNC start to finish
      $207.29 - $285.92
    • (0 reviews)
      # 503647012
      GMC Sierra 2003, 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...
      Quiet operationComputer controlled heat treatment
      $199.86 - $403.78
    • (0 reviews)
      # 1029205622
      GMC Sierra 2003, HP™ Rear Limited Slip Differential by Auburn Gear®. Location: Rear. High Performance. Auburn Gear’s flagship limited-slip differential gives you smooth torque-sensing operation with the correct bias ratios to out...
      Expertly crafted from superior materialsProvides exceptional reliability
      $416.16 - $499.39
    • (0 reviews)
      # mpn4517170222
      GMC Sierra 2500 with 35 Spline with GM 10.5" Series Axle with 14 Bolt 2003, MAX Lock™ Rear Open Mechanical Locker Differential by Auburn Gear®. Location: Rear. New is an automatic full locker, giving both 4 Wheel Drives and 2 Wheel...
      Enables you to keep your engine in the powerband for more giddy-up and high speedAllows for getting superior traction on just about any brutal terrain
      $327.68
    • (0 reviews)
      # 1029182649
      GMC Sierra 2003, Detroit Truetrac™ Rear Differential by Eaton®. Location: Rear. The Detroit Truetrac is a helical-gear style performance differential that maximizes wheel traction and enhances driving and handling characteristics....
      Helical-style pinion gearsLimited-slip operation
      $504.47 - $961.46
    • (0 reviews)
      # 742023852
      GMC Sierra with Open Differential 2003, Lock Right Locker 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...
      Brute Force Devices For Rugged ApplicationsReplacement Of Differential Case Not Required
      $336.26 - $444.59
    • (0 reviews)
      # mpn4517167980
      GMC Sierra 2500 / 2500 HD with 30 Spline with GM 10.5" Series Axle 2003, Open Grip Lok Traction System by Powertrax®. If you are looking for the ultimate in traction, the Powertrax Grip Lok can handle the torque of engines producing up...
      Comes Fully AssembledTraction Adding Differential Technology
      $485.95
    • (0 reviews)
      # 742022742
      GMC Sierra 2003, Differential Carrier Case by G2 Axle & Gear®. 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...
      Enables you to keep your engine in the powerband for more giddy-up and high speedAllows for getting superior traction on just about any brutal terrain
      $74.99 - $449.99
    • (1 review)
      # 1029270637
      GMC Sierra 2003, OE Style™ Ring and Pinion Gear Set by G2 Axle & Gear®. G2 offers a line of OE gears that are an exact match to the factory gears found at dealerships. These gears are a great option for installers who work with...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $359.99 - $524.99
    • (1 review)
      # 1028913979
      GMC Sierra 2003, Performance Series™ Ring and Pinion Gear Set by G2 Axle & Gear®. G2’s line of Performance Series ring and pinions are engineered and manufactured to handle the increased loads of today’s performance vehicles. They...
      Forged 8620 SteelPrecision-machined for exact fit
      $224.99 - $359.99
    • (0 reviews)
      # mpn4517171189
      GMC Sierra 2500 / 3500 with 30 Spline with GM 11.5" Series Axle with 14 Bolt 2003, Rear Limited Slip Differential by G2 Axle & Gear®. Location: Rear. G2 limited slip differentials deliver increased traction over conventional open...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $899.99
    • (0 reviews)
      # 742037738
      GMC Sierra 1500 with GM 8.5" Series Axle / with GM 8.625" Series Axle with 10 Bolt 2003, Street Gear Ring and Pinion Gear Set by Richmond®. Richmond Gear ring and pinions are perfect for any vehicle where performance and durability...
      Outstanding design and state of the art manufacturing techniquesExtensive testing ensures uncompromising reliability
      $221.45 - $277.95
    • (0 reviews)
      # 978086639
      GMC Sierra With 2.73 and Up Gear Ratio 2003, Differential Locker by OX Off Road®. All OX lockers use a completely mechanical locking system inside the differential, and include a heavy duty differential cover for protection. OX Lockers...
      Easy clean cabin friendly installation with no setup adjustmentsStandard system uses no electric for a higher level of dependability
      $859.00 - $994.00
    • (0 reviews)
      # 990430417
      GMC Sierra 1500 / 1500 HD With GM 8.5" (10 Bolt) Series Axle 2003, Ring and Pinion Gear Set by AllStar Performance®. 30-spline pinion, 8.50" dia. ring gear, 1.625" dia. pinion stem. Quality differential components are suitable for race,...
      Precise manufacturing and high-grade materialsExpertly Crafted from the highest grade materials
      $144.99
    • (0 reviews)
      # mpn4510235964
      GMC Sierra 2500 / 2500 HD SLE / SLT / WT GM 10.5" Axle 2003, Full Spool by Revolution Gear & Axle®. 14 Bolt Holes. 30 Spline. 4.10 and Down. This top-grade product is expertly made in compliance with stringent industry standards to...
      Limited Lifetime WarrantyMade to promote and inspire your off-road adventures
      $197.99
    • (0 reviews)
      # 942614066
      GMC Sierra 2003, 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...
      2 Year Limited WarrantyMade to promote and inspire your off-road adventures
      $195.00 - $270.00
    • (0 reviews)
      # 503427479
      GMC Sierra 2003, Differential Bearing Installation Kit by Yukon Gear & Axle®. with Timken Bearings and Races. Dominate the track or hit the trails with confidence by fine tuning your vehicle for neck-breaking speed and performance with...
      Enables you to keep your engine in the powerband for more giddy-up and high speedAllows for getting superior traction on just about any brutal terrain
      $155.02 - $476.01
    • (0 reviews)
      # 503396234
      GMC Sierra 2003, Differential Mini Installation Kit by Yukon Gear & Axle®. Yukon Mini installation kits are a low cost solution for gear changes in newer vehicles where the bearings can be reused and includes all high quality components...
      Enables you to keep your engine in the powerband for more giddy-up and high speedAllows for getting superior traction on just about any brutal terrain
      $30.74 - $133.50
    • (0 reviews)
      # 503692275
      GMC Sierra 2003, Differential Pinion Installation Kit by Yukon Gear & Axle®. Yukon Pinion installation kits are a terrific solution for gear installation on lower mileage vehicles where the carrier bearings and races can be reused....
      Enables you to keep your engine in the powerband for more giddy-up and high speedAllows for getting superior traction on just about any brutal terrain
      $98.15 - $396.10
    • (0 reviews)
      # 503582291
      GMC Sierra 2003, Rear Differential Carrier Bearing Kit by Yukon Gear & Axle®. Location: Rear. Includes: Carrier bearings, races and "super" carrier shim kit. Yukon Carrier installation kits are great, low cost kits for carrier changes...
      Enables you to keep your engine in the powerband for more giddy-up and high speedAllows for getting superior traction on just about any brutal terrain
      $74.26 - $132.46
    • (0 reviews)
      # mpn4517167237
      GMC Sierra 2500 / 2500 HD 3/4 Ton with 30 Spline with GM 10.5" Series Axle with 14 Bolt 2003, Rear Mini Spool by Yukon Gear & Axle®. Location: Rear. Mini spools are a low-cost traction option for vehicles looking for full-time lockup....
      Provides 100% traction to both wheels at all timesInstalls into standard open carrier case
      $182.73
    • (0 reviews)
      # 115938182
      GMC Sierra 2003, Rear Spool by Yukon Gear & Axle®. Location: Rear. 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...
      Enables you to keep your engine in the powerband for more giddy-up and high speedAllows for getting superior traction on just about any brutal terrain
      $338.44 - $1,555.72
    • (0 reviews)
      # 503562422
      GMC Sierra 2003, Spider Gear Set by Yukon Gear & Axle®. 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...
      Enables you to keep your engine in the powerband for more giddy-up and high speedAllows for getting superior traction on just about any brutal terrain
      $134.28 - $418.01
    • (0 reviews)
      # 503364275
      GMC Sierra 2003, Differential Bearing Kit by Motive Gear®. All Motive Gear products are engineered for their specific application and manufactured in state of the art facilities. All of company products undergo rigid quality control...
      Motive Gear uses the highest quality standards of manufacturingFrom machining and finishing to heat treatment company demand the best
      $94.30 - $203.91
    • (0 reviews)
      # 503642121
      GMC Sierra 2003, Differential Carrier Gear Kit by Motive Gear®. 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...
      Motive Gear uses the highest quality standards of manufacturingFrom machining and finishing to heat treatment company demand the best
      $127.35 - $169.13
    • (0 reviews)
      # 126511584
      GMC Sierra 2003, Differential Gear Installation Kit by Motive Gear®. All Motive Gear products are engineered for their specific application and manufactured in state of the art facilities. All of company products undergo rigid quality...
      Motive Gear uses the highest quality standards of manufacturingFrom machining and finishing to heat treatment company demand the best
      $33.77 - $73.15
    • (0 reviews)
      # 503550188
      GMC Sierra 2003, Differential Master Bearing Kit by Motive Gear®. All Motive Gear products are engineered for their specific application and manufactured in state of the art facilities. All of company products undergo rigid quality...
      Motive Gear uses the highest quality standards of manufacturingFrom machining and finishing to heat treatment company demand the best
      $104.05 - $259.61
    • (0 reviews)
      # 503571359
      GMC Sierra 2003, Differential Pinion Bearing Kit by Motive Gear®. Dominate the track or hit the trails with confidence by fine tuning your vehicle for neck-breaking speed and performance with these premium differential bearing kit that...
      Motive Gear uses the highest quality standards of manufacturingFrom machining and finishing to heat treatment company demand the best
      $49.88 - $142.29
    • (0 reviews)
      # mpn4517166046
      GMC Sierra 1500 with 30 Spline with 8.6" Series Axle with 10 Bolt 2003, Spool by Motive Gear®. All Motive Gear products are engineered for their specific application and manufactured in state of the art facilities. All of company...
      Motive Gear uses the highest quality standards of manufacturingFrom machining and finishing to heat treatment company demand the best
      $149.79
    • (0 reviews)
      # 503445356
      GMC Sierra 2003, Differential Installation Kit by G2 Axle & Gear®. For low mileage vehicles, G2 offers installation kits that have all the same components as the master kits, sans the bearings. This is an economically priced kit that...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $45.99 - $67.99
    • (0 reviews)
      # 503297116
      GMC Sierra 2003, Differential Master Installation Kit by G2 Axle & Gear®. G2’s master installation kits come complete with everything you need to properly set up your ring and pinion gear set. Designed utilizing the latest technology,...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $101.99 - $464.99
    • (0 reviews)
      # mpn4517171573
      GMC Sierra 2500 with 30 Spline with GM 10.5" Series Axle with Full-Floating Axle with 14 Bolt 2003, Rear Mini Spool by G2 Axle & Gear®. Location: Rear. For maximum traction at an economical price, G2 mini spools are the perfect choice....
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $189.99
    • (0 reviews)
      # mpn4517169894
      GMC Sierra 2500 with Open Carrier Case with 30 Spline with GM 10.5" Series Axle with 14 Bolt 2003, Rear Spider Gear Kit by G2 Axle & Gear®. Location: Rear. G2 offers a full line of internal kits to replace worn or damaged gears. Kits...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $206.99
    • (0 reviews)
      # 503685188
      GMC Sierra 2003, Differential Gear Installation Kit 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 gear installation...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $33.80 - $55.07
    • (0 reviews)
      # 742158816
      GMC Sierra 2003, Differential Master Overhaul Kit by Alloy USA®. 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...
      Enables you to keep your engine in the powerband for more giddy-up and high speedAllows for getting superior traction on just about any brutal terrain
      $138.02 - $298.66
    • (0 reviews)
      # mpn4515293129
      GMC Sierra 1500 / 1500 HD With GM 8.5" (10 Bolt) Series Axle 2003, Cross Pin by AllStar Performance®. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design...
      Precise manufacturing and high-grade materialsExpertly Crafted from the highest grade materials
      $18.99
    • (0 reviews)
      # 942610731
      GMC Sierra 2003, Master Overhaul Kit by Revolution Gear & Axle®. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level of craftsmanship....
      Made to promote and inspire your off-road adventuresTested in demanding off-road conditions for maximum durability
      $109.24 - $242.24
    • (0 reviews)
      # 942609028
      GMC Sierra GM 8.6" Axle 2003, Open Internal Kit by Revolution Gear & Axle®. 30 Spline. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level of...
      1 Year Limited WarrantyMade to promote and inspire your off-road adventures
      $116.99
    • (0 reviews)
      # 503317336
      GMC Sierra 2003, Differential Bearing Race Driver by Yukon Gear & Axle®. 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...
      Enables you to keep your engine in the powerband for more giddy-up and high speedAllows for getting superior traction on just about any brutal terrain
      $111.18 - $120.06
    • (0 reviews)
      # 503326333
      GMC Sierra 2003, Differential Bearing Race Punch by Yukon Gear & Axle®. 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...
      Enables you to keep your engine in the powerband for more giddy-up and high speedAllows for getting superior traction on just about any brutal terrain
      $56.95
    • (0 reviews)
      # 503648264
      GMC Sierra 2003, Differential Carrier Bearing Puller by Yukon Gear & Axle®. Dominate the track or hit the trails with confidence by fine tuning your vehicle for neck-breaking speed and performance with this premium differential...
      Works with an impact gun to safely and easliy remove carrrier bearingsEnables you to keep your engine in the powerband for more giddy-up and high speed
      $435.16 - $519.86
    • (0 reviews)
      # 503427234
      GMC Sierra 2003, Differential Cross Pin Bolt by Yukon Gear & Axle®. 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...
      Enables you to keep your engine in the powerband for more giddy-up and high speedAllows for getting superior traction on just about any brutal terrain
      $3.46 - $10.99
    • (0 reviews)
      # 503401474
      GMC Sierra 2003, Differential Cross Pin Shaft by Yukon Gear & Axle®. 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...
      Enables you to keep your engine in the powerband for more giddy-up and high speedAllows for getting superior traction on just about any brutal terrain
      $18.59 - $56.55
    • (0 reviews)
      # 503547604
      GMC Sierra 2003, Differential Crush Sleeve by Yukon Gear & Axle®. Designed utilizing the latest technology, this product by Yukon Gear & Axle features premium quality and will perform better than advertised. Perfect for your vehicle and...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $3.44 - $36.47
    • (0 reviews)
      # 503398506
      GMC Sierra 2003, Differential Pinion Gear Thrust Washer by Yukon Gear & Axle®. Dominate the track or hit the trails with confidence by fine tuning your vehicle for neck-breaking speed and performance with this premium differential...
      Enables you to keep your engine in the powerband for more giddy-up and high speedAllows for getting superior traction on just about any brutal terrain
      $2.54 - $13.58





    2003 GMC Sierra Models
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