1977 Buick Century Differentials

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    • (0 reviews)
      # mpn4517168131
      Buick Century with 28 Spline with GM 8.5" Series Axle with 2.73 and Up Gear Ratio with 10 Bolt 1977, ECTED Max™ Rear Limited Slip Differential by Auburn Gear®. With Selectable Full Locker. Location: Rear. The ECTED Max is a selectable...
      Expertly crafted from superior materialsProvides exceptional reliability
      $803.64
    • (0 reviews)
      # 503512260
      Buick Century with 10 Bolt 1977, 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...
      Quiet operationComputer controlled heat treatment
      $199.86 - $251.95
    • (0 reviews)
      # 503380376
      Buick Century with Open Differential 1977, 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...
      Extreme Traction PerformanceEnables a 2 Wheel Drive to outperform a 4 Wheel Drive in poor traction conditions
      $418.28 - $443.21
    • (0 reviews)
      # 503318301
      Buick Century with 28 Spline 1977, 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 traction as...
      Comes Fully AssembledCarbon Fiber and Steel Friction Plate Technology
      $443.35 - $457.67
    • (0 reviews)
      # mpn4517168200
      Buick Century with 1.16" Axle Shaft Diameter with GM 7.5" Series Axle with 3.23 and Up Gear Ratio with 10 Bolt 1977, Detroit Locker™ Rear Differential by Eaton®. Location: Rear. The Detroit Locker is a 100%-automatic locking...
      100% automatic locking - no driver action neededProvides maximum amount of traction to both wheel ends
      $744.90
    • (0 reviews)
      # 1029081602
      Buick Century with 10 Bolt 1977, 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...
      Superior rebuildable designRace-bred carbon friction discs
      $482.39 - $487.18
    • (0 reviews)
      # mpn4517168181
      Buick Century with GM 8.5" Series Axle with 2.73 and Up Gear Ratio with 10 Bolt 1977, Differential Carrier by Motive Gear®. Without Internal Kit. All Motive Gear products are engineered for their specific application and manufactured in...
      Motive Gear uses the highest quality standards of manufacturingFrom machining and finishing to heat treatment company demand the best
      $77.55
    • (1 review)
      # 126460039
      Buick Century with GM 8.5" Series Axle / with GM 8.625" Series Axle with 2.73 and Up Gear Ratio with 10 Bolt 1977, Performance Ring and Pinion Gear Set by Motive Gear®. Motive Gear Performance ring and pinions are perfect for dedicated...
      Central contact patternCNC start to finish
      $210.38 - $265.28
    • (0 reviews)
      # mpn4517172536
      Buick Century with GM 7.5" Series Axle with 3.23 and Up Gear Ratio with 10 Bolt 1977, Rear Pro Gear Ring and Pinion Gear Set by Motive Gear®. Location: Rear. Motive Gear Pro Gear ring and pinions are perfect for dedicated racing or...
      Motive Gear uses the highest quality standards of manufacturingFrom machining and finishing to heat treatment company demand the best
      $448.50
    • (0 reviews)
      # 1028982013
      Buick Century with 10 Bolt 1977, 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...
      Expertly crafted from superior materialsProvides exceptional reliability
      $451.22
    • (0 reviews)
      # 1029026546
      Buick Century with 10 Bolt 1977, Pro™ Rear Limited Slip Differential by Auburn Gear®. Location: Rear. Turns your torque up another notch, offering an even higher bias ratio and faster sensing reaction than HP for the very best in...
      Expertly crafted from superior materialsProvides exceptional reliability
      $511.62 - $555.69
    • (0 reviews)
      # 1029147578
      Buick Century with 10 Bolt 1977, 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...
      Helical-style pinion gearsLimited-slip operation
      $461.03 - $496.63
    • (0 reviews)
      # 503345062
      Buick Century with Open Differential 1977, 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 - $406.60
    • (0 reviews)
      # mpn4517169459
      Buick Century with GM 8.5" Series Axle with 2.73 Ratio and Numerically Higher with 10 Bolt 1977, Excel™ Differential Carrier by Richmond®. Designed utilizing the latest technology, this product by Richmond features premium quality and...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $74.55
    • (0 reviews)
      # 1029191504
      Buick Century with 10 Bolt 1977, Excel™ Rear Ring and Pinion Gear Set by Richmond®. Location: Rear. Designed utilizing the latest technology, this product by Richmond features premium quality and will perform better than advertised....
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $164.95 - $194.50
    • (0 reviews)
      # 197712698
      Buick Century with 10 Bolt 1977, Street Gear Ring and Pinion Gear Set by Richmond®. Richmond Gear ring and pinions are perfect for any vehicle where performance and durability matters. Made from first-run steel, never recycled material,...
      Outstanding design and state of the art manufacturing techniquesExtensive testing ensures uncompromising reliability
      $221.45 - $279.10
    • (0 reviews)
      # 1146033352
      Buick Century with Front GM 8.5" (10 Bolt) Series Axle / with Rear GM 8.5" (10 Bolt) Series Axle with 2.73 and Up Gear Ratio 1977, Differential Locker by OX Off Road®. OX Lockers can instantly lock differentials and allow you to tackle...
      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)
      # 990406455
      Buick Century with GM 8.5" Series Axle with 10 Bolt 1977, Ring and Pinion Gear Set by AllStar Performance®.
      Precise manufacturing and high-grade materialsExceptional performance at a competitive price
      $149.99
    • (0 reviews)
      # 503695292
      Buick Century with 10 Bolt 1977, 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...
      Motive Gear uses the highest quality standards of manufacturingFrom machining and finishing to heat treatment company demand the best
      $72.92 - $103.58
    • (0 reviews)
      # 503602262
      Buick Century 1977, 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
      $89.77 - $104.99
    • (0 reviews)
      # 503586260
      Buick Century 1977, 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...
      Motive Gear uses the highest quality standards of manufacturingFrom machining and finishing to heat treatment company demand the best
      $45.48 - $59.93
    • (0 reviews)
      # 503440020
      Buick Century with 10 Bolt 1977, 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...
      Motive Gear uses the highest quality standards of manufacturingFrom machining and finishing to heat treatment company demand the best
      $90.49 - $108.26
    • (0 reviews)
      # 503625366
      Buick Century with 10 Bolt 1977, Differential Super 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 this premium differential...
      Motive Gear uses the highest quality standards of manufacturingFrom machining and finishing to heat treatment company demand the best
      $113.17 - $125.76
    • (0 reviews)
      # mpn4517166000
      Buick Century with 28 Spline with GM 8.5" Series Axle with 10 Bolt with Open Differential 1977, Mini Spool by Motive Gear®. Dominate the track or hit the trails with confidence by fine tuning your vehicle for neck-breaking speed and...
      Motive Gear uses the highest quality standards of manufacturingFrom machining and finishing to heat treatment company demand the best
      $81.49
    • (0 reviews)
      # 126459872
      Buick Century 1977, 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 products undergo rigid quality control processes to insure...
      Motive Gear uses the highest quality standards of manufacturingFrom machining and finishing to heat treatment company demand the best
      $148.35 - $170.34
    • (0 reviews)
      # mpn4517168046
      Buick Century with GM 8.5" Series Axle 1977, Rear Differential Master Overhaul Kit by Spicer®. Location: Rear. Genuine Spicer overhaul kit include all the latest production upgrades, so the parts you’re installing are as good or...
      Save Money: Buying components separately can be costly and cumbersomeSave Downtime: Be ready to perform a repair or overhaul as you need it
      $171.26
    • (0 reviews)
      # mpn4517168652
      Buick Century with GM 8.5" Series Axle with 10 Bolt 1977, 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...
      Outstanding design and state of the art manufacturing techniquesExtensive testing ensures uncompromising reliability
      $27.10
    • (0 reviews)
      # 503482087
      Buick Century 1977, Differential Mega Bearing 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 component that...
      Outstanding design and state of the art manufacturing techniquesExtensive testing ensures uncompromising reliability
      $157.24
    • (0 reviews)
      # 503593293
      Buick Century with GM 8.5" Series Axle with 10 Bolt 1977, Differential Spool Bearing Kit by Richmond®. Richmond Gear Differential Installation Kits are a must have when overhauling an axle or replacing a ring & pinion set. Differential...
      Outstanding design and state of the art manufacturing techniquesExtensive testing ensures uncompromising reliability
      $34.03 - $50.31
    • (0 reviews)
      # 1028982568
      Buick Century with 10 Bolt 1977, Excel™ Differential Bearing Kit by Richmond®. Designed utilizing the latest technology, this product by Richmond features premium quality and will perform better than advertised. Perfect for your...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $93.46 - $96.18
    • (0 reviews)
      # 1028934994
      Buick Century 1977, Excel™ Differential Carrier Gear Kit by Richmond®. Designed utilizing the latest technology, this product by Richmond 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
      $88.01 - $101.92
    • (0 reviews)
      # mpn4517166584
      Buick Century with 28 Spline with GM 8.5" Series Axle with 10 Bolt with Open Differential 1977, Mini Spool by Richmond®. Dominate the track or hit the trails with confidence by fine tuning your vehicle for neck-breaking speed and...
      Outstanding design and state of the art manufacturing techniquesExtensive testing ensures uncompromising reliability
      $100.35
    • (0 reviews)
      # 503552532
      Buick Century with GM 8.5" Series Axle with 10 Bolt with C-Clip Eliminator Kit with 45 Degree Pressure Angle Axles 1977, Rear Spool by Richmond®. Location: Rear. Dominate the track or hit the trails with confidence by fine tuning your...
      Outstanding design and state of the art manufacturing techniquesExtensive testing ensures uncompromising reliability
      $195.90 - $202.35
    • (0 reviews)
      # mpn4517170293
      Buick Century with GM 8.5" Series Axle 1977, Rear Differential Master Overhaul Kit by Alloy USA®. Location: Rear. Dominate the track or hit the trails with confidence by fine tuning your vehicle for neck-breaking speed and performance...
      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
      $179.48
    • (0 reviews)
      # mpn4515290647
      Buick Century with GM 7.5" Series Axle 1977, Mini Spool by AllStar Performance®. Designed utilizing the latest technology, this product by AllStar Performance features premium quality and will perform better than advertised. Perfect for...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $96.99
    • (0 reviews)
      # 1016979743
      Buick Century 1977, Ring and Pinion Installation Bearing Kit by AllStar Performance®.
      Precise manufacturing and high-grade materialsExceptional performance at a competitive price
      $97.99 - $99.99
    • (0 reviews)
      # mpn4515293621
      Buick Century with GM 8.5" Series Axle with 10 Bolt 1977, Ring and Pinion Installation Shim Kit by AllStar Performance®.
      Precise manufacturing and high-grade materialsExceptional performance at a competitive price
      $43.99
    • (0 reviews)
      # 1029208616
      Buick Century 1977, Differential Carrier Shim 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
      $17.31 - $21.36
    • (0 reviews)
      # mpn4517167611
      Buick Century with 8.5" Series Axle with 10 Bolt 1977, Differential Crush Sleeve 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
      $3.39
    • (0 reviews)
      # mpn4517167740
      Buick Century with Chrysler 7.25" Series Axle / with Chrysler 8" Series Axle / with Chrysler 8.25" Series Axle / with Chrysler 8.375" Series Axle / with Chrysler 9.25" Series Axle / with GM 7.2" Series Axle / with GM 7.5" Series Axle /...
      Motive Gear uses the highest quality standards of manufacturingFrom machining and finishing to heat treatment company demand the best
      $3.59
    • (0 reviews)
      # mpn4517167561
      Buick Century with 8.2" Series Axle / with 8.5" Series Axle / with 8.6" Series Axle 1977, Differential Pinion Seal by Motive Gear®. Dominate the track or hit the trails with confidence by fine tuning your vehicle for neck-breaking speed...
      Motive Gear uses the highest quality standards of manufacturingFrom machining and finishing to heat treatment company demand the best
      $2.65
    • (0 reviews)
      # mpn4517168484
      Buick Century with GM 8.5" Series Axle 1977, Differential Pinion Shaft 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...
      Motive Gear uses the highest quality standards of manufacturingFrom machining and finishing to heat treatment company demand the best
      $18.71
    • (0 reviews)
      # mpn4517166248
      Buick Century with Chrysler 8" Series Axle / with Chrysler 8.25" Series Axle / with Chrysler 8.375" Series Axle / with Dana 44 Series Axle / with Ford 7.5" Series Axle / with Ford 8.8" Series Axle / with GM 8" Series Axle / with GM 8.5"...
      Motive Gear uses the highest quality standards of manufacturingFrom machining and finishing to heat treatment company demand the best
      $8.22
    • (0 reviews)
      # mpn4517167735
      Buick Century with Chrysler 9.25" Series Axle / with GM 7.5" Series Axle / with GM 7.75" Series Axle / with GM 7.625" Series Axle / with GM 8" Series Axle / with GM 8.2" Series Axle / with GM 8.5" Series Axle / with GM 8.625" Series Axle...
      Motive Gear uses the highest quality standards of manufacturingFrom machining and finishing to heat treatment company demand the best
      $2.47
    • (0 reviews)
      # mpn4517166247
      Buick Century with GM 8.5" Series Axle 1977, Differential Ring Gear Spacer 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...
      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
      $43.17
    • (0 reviews)
      # 174223772
      Buick Century with 10 Bolt 1977, Rear Differential Spring Retainer Service Kit by Auburn Gear®. Location: Rear. Dominate the track or hit the trails with confidence by fine tuning your vehicle for neck-breaking speed and performance...
      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
      $114.71 - $121.14
    • (0 reviews)
      # mpn4517169981
      Buick Century with GM 8.5" Series Axle 1977, Differential Pinion Shaft by Powertrax®. These hardened cross shafts are specifically designed for use with your Powertrax Lock Right locker. Powertrax Grip-Lok, Lock-Right Lockers and...
      High quality at an affordable priceExpertly made from premium materials
      $23.99
    • (0 reviews)
      # 503547399
      Buick Century 1977, Differential Bearing 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 component that delivers...
      Outstanding design and state of the art manufacturing techniquesExtensive testing ensures uncompromising reliability
      $140.23 - $140.76
    • (0 reviews)
      # 197712672
      Buick Century 1977, Differential Pinion Shaft 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...
      Outstanding design and state of the art manufacturing techniquesExtensive testing ensures uncompromising reliability
      $15.75 - $41.42
    • (0 reviews)
      # 990431081
      Buick Century 1977, Differential Cross Pin by AllStar Performance®. Designed utilizing the latest technology, this product by AllStar Performance features premium quality and will perform better than advertised. Perfect for your vehicle...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $18.99
    • (0 reviews)
      # mpn4515290619
      Buick Century with GM 7.5" Series Axle / with GM 8.5" Series Axle 1977, Differential Pinion Nut by AllStar Performance®. Designed utilizing the latest technology, this product by AllStar Performance features premium quality and will...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $4.99
    • (0 reviews)
      # 990448651
      Buick Century 1977, Differential Pinion Seal by AllStar Performance®. Designed utilizing the latest technology, this product by AllStar Performance features premium quality and will perform better than advertised. Perfect for your...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $6.99
    • (0 reviews)
      # mpn4515294792
      Buick Century with GM 7.5" Series Axle 1977, Ring Gear Spacer by AllStar Performance®.
      $52.99
    • (0 reviews)
      # 531073256
      Buick Century with 8.5" Ring Gear 1977, Rear Differential Ring and Pinion by Dorman®. The gears of Dorman’s Differential Ring and Pinion are engineered to effectively transfer torque from the driveshaft to the axles. It's robust steel...
      Replacement eliminates driveline grinding and whining soundsDirect replacement for a proper fit
      $166.95 - $198.95
    • (0 reviews)
      # mpn2412739
      Buick Century with 8.5" Ring Gear 1977, Rear Differential Bearing Kit by Dorman®. Dorman’s Differential Bearing Kit allows you to keep all the necessary components for installation of the Differential Ring and Pinion readily on hand....
      Replacement eliminates driveline grinding and whining soundsRobust steel construction ensures durability for years of service
      $104.95
    • (0 reviews)
      # 531138230
      Buick Century 1977, Rear Axle Differential Bearing and Seal Kit by Timken®. Get optimum vehicle performance with Timken bearings. Timken manufactures ball bearings, cylindrical roller bearings, and tapered roller bearings, and all...
      Designed to effectively reduce frictionUltimate load handling capability
      $63.91 - $106.01
    • (0 reviews)
      # mpn2377089
      Buick Century with 8.5-8.75" Ring Gear 1977, Differential Crush Sleeves by Dorman®. A necessary item to replace when servicing the differential, Dorman’s Differential Crush Sleeve is durably built to retain optimal pressure when the...
      Direct replacement for a proper fit every timeDesigned specifically for rear-wheel drive vehicles
      $3.03
    • (0 reviews)
      # mpn2377088
      Buick Century with 8.5" Ring Gear / with 8.75" Ring Gear 1977, Rear Differential Pinion Shaft Lock Bolt by Dorman®. Engineered from high-quality metal, Dorman’s Differential Pinion Shaft Lock Bolt effectively retains the pinion shaft...
      Replacement restores drivabilityDirect replacement for a proper fit
      $1.75
    • (0 reviews)
      # 531082794
      Buick Century with GM Series Axle 1977, Rear Axle Differential Bearing by National®. This bearing is manufactured from high quality steel and constructed utilizing state-of-the-art computer controlled heat treatment technology to ensure...
      Premium bearing design matches OEM specificationsPrecision manufactured using premium-grade steel for outstanding durability and performance
      $7.78 - $11.44
    • (0 reviews)
      # mpn1074425
      Buick Century with 8.5" Ring Gear with GMC Transmission 1977, Rear Axle Differential Bearing Race by National®. This part is manufactured by one of the most trusted names in the automotive industry to keep your vehicle perform...
      Premium bearing design matches OEM specificationsPrecision manufactured using premium-grade steel for outstanding durability and performance
      $4.16




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