1974 Buick Century Differentials & Components

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    • (0 reviews)
      # 531073256
      Buick Century with 8.5" Ring Gear 1974, 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 - $204.95
    • (0 reviews)
      # 531051088
      Buick Century with 8.5" Ring Gear 1974, 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...
      Designed to effectively reduce frictionUltimate load handling capability
      $62.64 - $107.54
    • (0 reviews)
      # mpn2412739
      Buick Century with 8.5" Ring Gear 1974, 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
      $106.95
    • (0 reviews)
      # mpn358588626
      Buick Century Base / Luxus with 8.5" Ring Gear with General Motors Series Axle with 30 Pinion Spline 1974, Basic Series Differential Kit by Ratech®. Designed with precision and functionality in mind, this accessory ensures outstanding...
      OEM design and manufacturing ensure top qualityCrafted from prime materials for long-term service
      $15.70
    • (0 reviews)
      # mpn358588602
      Buick Century Base / Luxus with 8.5" Ring Gear with General Motors Series Axle 1974, Complete Series™ Differential Kit by Ratech®. Designed with precision and functionality in mind, this accessory ensures outstanding performance and...
      OEM design and manufacturing ensure top qualityCrafted from prime materials for long-term service
      $80.65
    • (0 reviews)
      # mpn358588584
      Buick Century Base / Luxus with 8.5" Ring Gear with General Motors Series Axle 1974, Deluxe Series Differential Kit With Pinion 10-Bolt by Ratech®. Designed with precision and functionality in mind, this accessory ensures outstanding...
      OEM design and manufacturing ensure top qualityCrafted from prime materials for long-term service
      $114.19
    • (0 reviews)
      # mpn358588444
      Buick Century Base / Luxus with 8.5" Ring Gear with General Motors Series Axle 1974, Differential Installation Kit by Ratech®. Designed with precision and functionality in mind, this accessory ensures outstanding performance and easy...
      OEM design and manufacturing ensure top qualityCrafted from prime materials for long-term service
      $37.26
    • (0 reviews)
      # 531200865
      Buick Century 1974, Rear Differential Bearing by Timken®. Get optimum vehicle performance with Timken bearings. Timken manufactures ball bearings, cylindrical roller bearings, and tapered roller bearings, and all feature premium design,...
      Designed to effectively reduce frictionUltimate load handling capability
      $7.58 - $10.32
    • (1 review)
      # 531168435
      Buick Century 1974, Rear Differential Bearing Set by Timken®. Get optimum vehicle performance with Timken bearings. Timken manufactures ball bearings, cylindrical roller bearings, and tapered roller bearings, and all feature premium...
      Designed to effectively reduce frictionUltimate load handling capability
      $8.70 - $11.71
    • (0 reviews)
      # mpn2054350
      Buick Century 1974, Rear Differential Pinion Seal by Timken®. Timken offers the right seal to keep your vehicle running optimally. Timken seals provide ultimate protection from contaminants and help retain lubricants and liquids,...
      Machined rubber sealing edge provides greater accuracy and consistency and a better sealing surfaceAn extra dust lip helps keep harmful contaminants out and protects against rust and corrosion
      $4.93
    • (0 reviews)
      # 531168298
      Buick Century 1974, Rear Differential Race by Timken®. Precision manufactured using premium materials and made by the company that is trusted by many carmakers, the Timken race is the right choice if you opt for a highly durable part...
      OE quality fit, performance, and reliabilityCost-effective friction management solution
      $4.13 - $5.44
    • (0 reviews)
      # mpn2079326
      Buick Century with 8.875" Ring Gear / with 9.375" Ring Gear 1974, Rear Inner Differential Pinion Bearing by Timken®. Get optimum vehicle performance with Timken bearings. Timken manufactures ball bearings, cylindrical roller bearings,...
      Designed to effectively reduce frictionUltimate load handling capability
      $16.27
    • (0 reviews)
      # mpn2079325
      Buick Century with 8.875" Ring Gear / with 9.375" Ring Gear 1974, Rear Inner Differential Pinion Race by Timken®. Precision manufactured using premium materials and made by the company that is trusted by many carmakers, the Timken race...
      OE quality fit, performance, and reliabilityCost-effective friction management solution
      $11.59
    • (0 reviews)
      # 531082794
      Buick Century with GM Series Axle 1974, 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
      $8.38 - $12.43
    • (0 reviews)
      # mpn1074425
      Buick Century with 8.5" Ring Gear with GMC Transmission 1974, 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
      $4.24
    • (0 reviews)
      # mpn1848279422
      Buick Century with 8.5" Ring Gear with GM Series Axle 1974, Rear Axle Standard Differential Bearing and Seal Kit by National®. This bearing is manufactured from high quality steel and constructed utilizing state-of-the-art computer...
      Spindle bearing and seal kitIncludes all components required to complete the repair
      $73.50
    • (0 reviews)
      # 531068537
      Buick Century with GM Series Axle 1974, Rear Differential Pinion Bearing by National®. This bearing is manufactured from high quality steel and constructed utilizing state-of-the-art computer controlled heat treatment technology to...
      Premium bearing design matches OEM specificationsPrecision manufactured using premium-grade steel for outstanding durability and performance
      $8.80 - $17.85
    • (0 reviews)
      # 531159040
      Buick Century with GM Series Axle 1974, Rear Differential Pinion Race by National®. This part is manufactured by one of the most trusted names in the automotive industry to keep your vehicle perform optimally. It is built to the...
      Premium bearing design matches OEM specificationsPrecision manufactured using premium-grade steel for outstanding durability and performance
      $4.78 - $11.39
    • (0 reviews)
      # mpn1179154
      Buick Century with 8.5" Ring Gear / with 8.875" Ring Gear with GMC Transmission 1974, Rear Outer Differential Pinion Repair Sleeve by National®. This part is manufactured by one of the most trusted names in the automotive industry to...
      National Redi-Sleeves are precision stainless steel wear sleeves designed to quickly repair damaged, grooved or worn shaftsStrong, durable stainless steel construction provides a corrosion-free sealing surface that surpasses most original shaft specifications
      $20.51
    • (0 reviews)
      # mpn1307881
      Buick Century with 8.5" Ring Gear / with 8.875" Ring Gear with GM Series Axle 1974, Rear Outer Differential Pinion Seal by National®. This product is made of high-quality materials to serve you for years to come. Designed using...
      National oil seals are recognized worldwide for their quality and reliable performance for every type of repair.Design Type: Spring Loaded; Multi-Lip
      $5.41
    • (0 reviews)
      # mpn358588625
      Buick Century Base / Luxus with 8.5" Ring Gear with General Motors Series Axle 1974, Differential Bearing Spacer With Shim Pack by Ratech®. Designed with precision and functionality in mind, this accessory ensures outstanding...
      OEM design and manufacturing ensure top qualityCrafted from prime materials for long-term service
      $12.27
    • (0 reviews)
      # mpn358588732
      Buick Century Base / Luxus with 8.5" Ring Gear with General Motors Series Axle 1974, Differential Carrier Bearing Set by Ratech®. Bearings designed for use when installing aftermarket carriers only (Eaton, Moroso, ARB). These are not...
      OEM design and manufacturing ensure top qualityCrafted from prime materials for long-term service
      $26.56
    • (0 reviews)
      # mpn358588647
      Buick Century Base / Luxus with 8.5" Ring Gear with General Motors Series Axle 1974, Differential Pinion Seal by Ratech®. Designed with precision and functionality in mind, this accessory ensures outstanding performance and easy use...
      OEM design and manufacturing ensure top qualityCrafted from prime materials for long-term service
      $4.24
    • (0 reviews)
      # mpn358588440
      Buick Century Base / Luxus with 8.5" Ring Gear with General Motors Series Axle 1974, Differrential Carrier Shim Set by Ratech®. Designed with precision and functionality in mind, this accessory ensures outstanding performance and easy...
      OEM design and manufacturing ensure top qualityCrafted from prime materials for long-term service
      $24.26
    • (0 reviews)
      # mpn358588458
      Buick Century Base / Luxus with 8.5" Ring Gear with General Motors Series Axle 1974, Ring Gear Bolt Set by Ratech®. Designed with precision and functionality in mind, this accessory ensures outstanding performance and easy use which...
      OEM design and manufacturing ensure top qualityCrafted from prime materials for long-term service
      $16.64
    • (0 reviews)
      # mpn358588433
      Buick Century Base / Luxus with 8.5" Ring Gear with General Motors Series Axle 1974, Smart Sleeve Crush Sleeve by Ratech®. Designed with precision and functionality in mind, this accessory ensures outstanding performance and easy use...
      OEM design and manufacturing ensure top qualityCrafted from prime materials for long-term service
      $9.80
    • (0 reviews)
      # mpn4554792024
      Buick Century with GM 8.5" Series Axle with TrueTrac Differential 1974, 12 Point Ring Gear Bolt Kit by ARP®. The tremendous shock loads generated at launch by most any drag racing vehicle equipped with today’s sticky tire compounds or...
      Designed to unlock more performance out of your vehicleDeliver a reasonable balance of strength and durability
      $65.36
    • (0 reviews)
      # 990431081
      Buick Century 1974, 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 1974, 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 1974, 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)
      # 990460372
      Buick Century 1974, 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 your vehicle and...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $96.99
    • (0 reviews)
      # mpn4515294792
      Buick Century with GM 7.5" Series Axle 1974, Ring Gear Spacer by AllStar Performance®. Designed utilizing the latest technology, this product by AllStar Performance features premium quality and will perform better than advertised....
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $52.99
    • (0 reviews)
      # 990406455
      Buick Century with GM 8.5" Series Axle with 10 Bolt 1974, Ring and Pinion Gear Set by AllStar Performance®. CA Prop 65 WARNING - This product contains chemicals known to the State of California to cause cancer, and/or birth defects or...
      Precise manufacturing and high-grade materialsExceptional performance at a competitive price
      $149.99
    • (0 reviews)
      # 1016979743
      Buick Century 1974, Ring and Pinion Installation Bearing Kit by AllStar Performance®. Designed utilizing the latest technology, this product by AllStar Performance features premium quality and will perform better than advertised....
      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 1974, Ring and Pinion Installation Shim Kit by AllStar Performance®. CA Prop 65 WARNING - This product contains chemicals known to the State of California to cause cancer, and/or birth...
      Precise manufacturing and high-grade materialsExceptional performance at a competitive price
      $43.99
    • (0 reviews)
      # mpn4561984219
      Buick Century with GM 8.5" Series Axle 1974, Rear 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...
      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
      $183.00
    • (0 reviews)
      # 1029100502
      Buick Century with 28 Spline with 2.73 and Up Gear Ratio with GM 8.5" Series Axle with 10 Bolt 1974, ECTED Max™ Rear Limited Slip Differential by Auburn Gear®. With Selectable Full Locker. The ECTED Max is a selectable traction...
      Expertly crafted from superior materialsProvides exceptional reliability
      $776.82
    • (0 reviews)
      # 1029159493
      Buick Century with 28 Spline with 2.73 and Up Gear Ratio with GM 8.5" Series Axle with 10 Bolt 1974, HP™ Rear Limited Slip Differential by Auburn Gear®. High Performance. Auburn Gear’s flagship limited-slip differential gives you...
      Expertly crafted from superior materialsProvides exceptional reliability
      $436.80
    • (0 reviews)
      # 1029284490
      Buick Century with 28 Spline with 2.73 and Up Gear Ratio with GM 8.5" Series Axle with 10 Bolt 1974, Pro™ Rear Limited Slip Differential by Auburn Gear®. Turns your torque up another notch, offering an even higher bias ratio and...
      Expertly crafted from superior materialsProvides exceptional reliability
      $549.12
    • (0 reviews)
      # 174223662
      Buick Century with 28 Spline with 2.73 and Up Gear Ratio with GM 8.5" Series Axle with 10 Bolt 1974, Rear Differential Spring Retainer Service Kit by Auburn Gear®. Dominate the track or hit the trails with confidence by fine tuning your...
      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
      $113.82
    • (0 reviews)
      # 174223678
      Buick Century with 28 Spline with 2.73 and Up Gear Ratio with GM 8.5" Series Axle with 10 Bolt 1974, Rear Differential Wiring Harness Kit by Auburn Gear®. With Switch. Dominate the track or hit the trails with condidence by fine tuning...
      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
      $85.36
    • (0 reviews)
      # mpn4517168100
      Buick Century with 2.73 to 5.13 Gear Ratio with GM 8.5" Series Axle with 10 Bolt with 1.20" Axle Shaft Diameter 1974, Detroit Locker™ Rear Differential by Eaton®. The Detroit Locker is a 100%-automatic locking differential that...
      100% automatic locking - no driver action neededProvides maximum amount of traction to both wheel ends
      $828.54
    • (0 reviews)
      # 503360023
      Buick Century with 2.73 and Up Gear Ratio with GM 8.5" Series Axle / with GM 8.625" Series Axle with 10 Bolt 1974, A-Line Ring and Pinion Gear Set by Motive Gear®. Motive Gear stock performance ring and pinions are excellent...
      Quiet operationComputer controlled heat treatment
      $262.66 - $281.32
    • (0 reviews)
      # 126460014
      Buick Century 7.5L with GM 8.5" Series Axle with 10 Bolt 1974, 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...
      Motive Gear uses the highest quality standards of manufacturingFrom machining and finishing to heat treatment company demand the best
      $116.07 - $166.40
    • (0 reviews)
      # mpn4517168181
      Buick Century with 2.73 and Up Gear Ratio with GM 8.5" Series Axle with 10 Bolt 1974, 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
      $141.20
    • (0 reviews)
      # 503602262
      Buick Century 1974, 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
      $163.46 - $191.15
    • (0 reviews)
      # 1029208616
      Buick Century 1974, 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
      $31.21 - $31.53
    • (0 reviews)
      # mpn4517167611
      Buick Century with 8.5" Series Axle with 10 Bolt 1974, 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
      $3.01
    • (0 reviews)
      # mpn4517165997
      Buick Century 7.5L with GM 8.5" Series Axle with 10 Bolt 1974, 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....
      Motive Gear uses the highest quality standards of manufacturingFrom machining and finishing to heat treatment company demand the best
      $108.13
    • (0 reviews)
      # 126459892
      Buick Century 7.5L with GM 8.5" Series Axle with 10 Bolt 1974, 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...
      Motive Gear uses the highest quality standards of manufacturingFrom machining and finishing to heat treatment company demand the best
      $115.50 - $137.35
    • (0 reviews)
      # 503604994
      Buick Century 7.5L with GM 8.5" Series Axle with 10 Bolt 1974, 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...
      Motive Gear uses the highest quality standards of manufacturingFrom machining and finishing to heat treatment company demand the best
      $79.80 - $95.11
    • (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
      $5.48
    • (0 reviews)
      # mpn4517167561
      Buick Century with 8.2" Series Axle / with 8.5" Series Axle / with 8.6" Series Axle 1974, 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
      $4.74
    • (0 reviews)
      # mpn4517168484
      Buick Century with GM 8.5" Series Axle 1974, 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
      $33.73
    • (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
      $9.56
    • (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
      $4.80
    • (0 reviews)
      # mpn4517166247
      Buick Century with GM 8.5" Series Axle 1974, 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
      $77.89
    • (0 reviews)
      # 503384038
      Buick Century 7.5L with GM 8.5" Series Axle with 10 Bolt 1974, 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...
      Motive Gear uses the highest quality standards of manufacturingFrom machining and finishing to heat treatment company demand the best
      $185.01 - $201.58
    • (0 reviews)
      # mpn4517166000
      Buick Century with 28 Spline with Open Differential with GM 8.5" Series Axle with 10 Bolt 1974, 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
      $148.38
    • (1 review)
      # 126460039
      Buick Century with 2.73 and Up Gear Ratio with GM 8.5" Series Axle / with GM 8.625" Series Axle with 10 Bolt 1974, 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
      $325.14 - $367.77




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