1975 Pontiac Catalina Differentials & Components

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    • (0 reviews)
      # 531121732
      Pontiac Catalina with 8.5" Ring Gear 1975, 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...
      Replacement eliminates driveline grinding and whining soundsDirect replacement for a proper fit
      $157.95 - $188.95
    • (0 reviews)
      # 111380052
      Pontiac Catalina 1975, Rear Ring and Pinion Gear Set by USA Standard Gear®. USA Standard ring and pinion sets are the right choice to add confidence to your install. USA Standard Gear offers a full line of ring & pinion sets for a...
      Direct-fit OE-quality replacement for your factory partHelps restore the proper functionality of your vehicle
      $195.75 - $288.40
    • (0 reviews)
      # mpn4248511564
      Pontiac Catalina with GM 8.5" Series Axle with 28 Spline 1975, Rear Spartan Locker by USA Standard Gear®. With Heavy Duty Cross Pin Shaft. The Spartan Locker, by USA Standard Gear, provides reliable traction at a low cost. The Spartan...
      Made from 9310 steel for added strengthReplaces the spiders in a standard carrier case
      $384.25
    • (0 reviews)
      # 531099461
      Pontiac Catalina with 8.5" Ring Gear 1975, 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
      $65.16 - $106.28
    • (0 reviews)
      # mpn2412739
      Pontiac Catalina with 8.5" Ring Gear 1975, 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...
      Replacement eliminates driveline grinding and whining soundsRobust steel construction ensures durability for years of service
      $98.95
    • (0 reviews)
      # 68641505
      Pontiac Catalina with GM 8.5" Series Axle with 28 Spline 1975, Rear Differential Bearing Kit by USA Standard Gear®. This kit uses Koyo bearings and races along with all high quality small parts. USA Standard Gear does extensive research...
      Expertly crafted from premium materialsDesigned to match rigorous quality standards
      $86.54 - $119.44
    • (1 review)
      # 68641539
      Pontiac Catalina 1975, Rear Master Overhaul Bearing Kit by USA Standard Gear®. USA Standard Master Overhaul kits let you finish your install with confidence. This kit uses Koyo bearings and races. When it comes to a top-notch...
      Uses Koyo bearings and racesExpertly crafted from premium materials
      $116.46 - $130.57
    • (0 reviews)
      # mpn739977048
      Pontiac Catalina with GM 8.5" Series Axle with 28 Spline 1975, Rear Mini Spool by USA Standard Gear®. Mini spools are a low-cost traction option for vehicles looking for full-time lockup. When it comes to a top-notch replacement for...
      Installs into a standard open carrier caseProvides 100% traction to both wheels at all times
      $86.39
    • (0 reviews)
      # mpn739977046
      Pontiac Catalina with GM 8.5" Series Axle with 28 Spline 1975, Rear Pinion Installation Kit by USA Standard Gear®. USA Standard ring and pinion sets are the right choice to add confidence to your install. USA Standard Gear offers a full...
      Expertly crafted from premium materialsDesigned to match rigorous quality standards
      $63.87
    • (0 reviews)
      # 68641666
      Pontiac Catalina 1975, Rear Spider Gear Set by USA Standard Gear®. USA Standard gear sets are the right choice to add confidence to your install. USA Standard Gear offers a full line of gear sets for a variety of common and hard to find...
      Expertly crafted from premium materialsDesigned to match rigorous quality standards
      $93.07 - $120.13
    • (0 reviews)
      # 531182448
      Pontiac Catalina 1975, 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 ultimate...
      Premium bearing design matches OEM specificationsPrecision manufactured using premium-grade steel for outstanding durability and performance
      $7.99 - $11.76
    • (0 reviews)
      # mpn358588626
      Pontiac Catalina GM 8.5" Axle 30 Pinion Spline 1975, Basic Series Differential Kit by Ratech®. Made in USA. Designed with precision and functionality in mind, this accessory ensures outstanding performance and easy use which makes it...
      OEM design and manufacturing ensure top qualityCrafted from prime materials for long-term service
      $19.82
    • (0 reviews)
      # mpn358588602
      Pontiac Catalina GM 8.5" Axle 1975, Complete Series Differential Kit by Ratech®. Made in USA. Designed with precision and functionality in mind, this accessory ensures outstanding performance and easy use which makes it the perfect deal...
      OEM design and manufacturing ensure top qualityCrafted from prime materials for long-term service
      $87.71
    • (0 reviews)
      # mpn358588584
      Pontiac Catalina GM 8.5" Axle 1975, Deluxe Series Differential Kit by Ratech®. Made in USA. Designed with precision and functionality in mind, this accessory ensures outstanding performance and easy use which makes it the perfect deal...
      OEM design and manufacturing ensure top qualityCrafted from prime materials for long-term service
      $126.40
    • (0 reviews)
      # mpn358588444
      Pontiac Catalina GM 8.5" Axle 1975, Differential Installation Kit by Ratech®. Made in USA. Designed with precision and functionality in mind, this accessory ensures outstanding performance and easy use which makes it the perfect deal...
      OEM design and manufacturing ensure top qualityCrafted from prime materials for long-term service
      $44.05
    • (0 reviews)
      # 531125810
      Pontiac Catalina 1975, 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...
      Designed to effectively reduce frictionUltimate load handling capability
      $6.86 - $10.49
    • (0 reviews)
      # mpn2035566
      Pontiac Catalina with 8.75" Ring Gear / with 8.88" Ring Gear with M Series Axle / with P Series Axle 1975, Rear Differential Bearing Set by Timken®. Get optimum vehicle performance with Timken bearings. Timken manufactures ball...
      Designed to effectively reduce frictionUltimate load handling capability
      $11.28
    • (0 reviews)
      # mpn2054350
      Pontiac Catalina with 8.5" Ring Gear / with 8.75" Ring Gear / with 8.88" Ring Gear 1975, Rear Differential Pinion Seal by Timken®. Seal ID: 1.9". Timken offers the right seal to keep your vehicle running optimally. Timken seals provide...
      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
      $4.89
    • (0 reviews)
      # 531108859
      Pontiac Catalina 1975, 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
      $4.24 - $5.65
    • (0 reviews)
      # mpn2079326
      Pontiac Catalina with 8.88" Ring Gear 1975, Rear Inner Differential Pinion Bearing 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
      $16.92
    • (0 reviews)
      # mpn2079325
      Pontiac Catalina with 8.88" Ring Gear 1975, 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 is the right choice if...
      OE quality fit, performance, and reliabilityCost-effective friction management solution
      $11.17
    • (0 reviews)
      # mpn2889949607
      Pontiac Catalina 1975, Advantage™ Rear Differential Bearing 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...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $7.73
    • (0 reviews)
      # mpn3065960247
      Pontiac Catalina with 8.5" Ring Gear 1975, Advantage™ Rear Differential Carrier Bearing Race by ACDelco®. Don’t be “indifferent” toward your differential. It plays a vital role in moving your vehicle and ensuring a smooth ride....
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $6.93
    • (0 reviews)
      # mpn1074425
      Pontiac Catalina with 8.5" Ring Gear with GMC Transmission 1975, Rear Axle Differential Bearing Race by National®. Cup Bore: 2.89". Cup Length: 0.653". This part is manufactured by one of the most trusted names in the automotive...
      Premium bearing design matches OEM specificationsPrecision manufactured using premium-grade steel for outstanding durability and performance
      $4.28
    • (0 reviews)
      # 531173142
      Pontiac Catalina with GM 8.5" Series Axle 1975, Rear Axle Differential Bearing and Seal Kit by National®. This bearing is manufactured from high quality steel and constructed utilizing state-of-the-art computer controlled heat treatment...
      Spindle bearing and seal kitIncludes all components required to complete the repair
      $74.01 - $91.67
    • (0 reviews)
      # 531131551
      Pontiac Catalina 1975, 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 ensure ultimate...
      Premium bearing design matches OEM specificationsPrecision manufactured using premium-grade steel for outstanding durability and performance
      $8.10 - $17.97
    • (0 reviews)
      # 531085357
      Pontiac Catalina 1975, 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 original equipment...
      Premium bearing design matches OEM specificationsPrecision manufactured using premium-grade steel for outstanding durability and performance
      $4.34 - $11.46
    • (0 reviews)
      # mpn1179154
      Pontiac Catalina with 8.5" Ring Gear / with 8.875" Ring Gear with GMC Transmission 1975, Rear Outer Differential Pinion Repair Sleeve by National®. Outer Diameter: 2.219". Width: 0.563". This part is manufactured by one of the most...
      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
      $20.66
    • (0 reviews)
      # mpn1307881
      Pontiac Catalina with GM 8.5" Series Axle / with GM 8.875" Series Axle 1975, Rear Outer Differential Pinion Seal by National®. Outer Diameter: 2.766". Width: 0.5". This product is made of high-quality materials to serve you for years to...
      National oil seals are recognized worldwide for their quality and reliable performance for every type of repair.Design Type: Spring Loaded; Multi-Lip
      $5.45
    • (0 reviews)
      # mpn107479756
      Pontiac Catalina with 12 Bolt Housing Cover 1975, Rear Axle Vent Tube by Goodmark®. With Cap. Some other restoration sheet metal companies may carry popular panels like hoods, fenders and quarter panels, but far too often they come up...
      Faithful reproduction of the original partHighest quality sheet metal parts available
      $9.57
    • (0 reviews)
      # mpn1461779754
      Pontiac Catalina 1975, Differential Vent Valve by OPGI®. This superior product is painstakingly designed to provide outstanding quality and value. Expertly crafted from first-rate materials to the highest standards it ensures maximum...
      Made from first-rate materialsDesigned to comply with high-quality standards
      $21.96
    • (0 reviews)
      # mpn1902176458
      Pontiac Catalina 1975, Posi-Traction Filler Tag by OPGI®. 3/4". This superior product is painstakingly designed to provide outstanding quality and value. Expertly crafted from first-rate materials to the highest standards it ensures...
      Made from first-rate materialsDesigned to comply with high-quality standards
      $28.77
    • (0 reviews)
      # mpn358588668
      Pontiac Catalina GM 8.5" Axle 28 Pinion Spline 1975, Differenrial Pinion Bearing by Ratech®. Made in USA. Designed with precision and functionality in mind, this accessory ensures outstanding performance and easy use which makes it the...
      OEM design and manufacturing ensure top qualityCrafted from prime materials for long-term service
      $11.91
    • (0 reviews)
      # 202160696
      Pontiac Catalina GM 8.5" Axle 30 Pinion Spline 1975, Differential Bearing Kit by Ratech®. Made in USA. Designed with precision and functionality in mind, this accessory ensures outstanding performance and easy use which makes it the...
      OEM design and manufacturing ensure top qualityCrafted from prime materials for long-term service
      $62.64 - $66.56
    • (0 reviews)
      # mpn358588732
      Pontiac Catalina GM 8.5" Axle 9-Bolt 1975, Differential Carrier Bearing Set by Ratech®. Stock 7.75" 9 bolt or GM 8.5 with aftermarket carrier. 3.062 I.D., carrier bearings. Bearings designed for use when installing aftermarket carriers...
      OEM design and manufacturing ensure top qualityCrafted from prime materials for long-term service
      $31.75
    • (0 reviews)
      # mpn358588647
      Pontiac Catalina GM 8.5" Axle 1975, Differential Pinion Seal by Ratech®. Made in USA. Designed with precision and functionality in mind, this accessory ensures outstanding performance and easy use which makes it the perfect deal for...
      OEM design and manufacturing ensure top qualityCrafted from prime materials for long-term service
      $6.44
    • (0 reviews)
      # mpn358588440
      Pontiac Catalina GM 8.5" Axle 2.891 in. Bearing Diameter 1975, Differrential Carrier Shim Set by Ratech®. Made in USA. 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
      $28.83
    • (0 reviews)
      # mpn358588458
      Pontiac Catalina GM 8.5" Axle 1975, Ring Gear Bolt Set by Ratech®. Made in USA. Designed with precision and functionality in mind, this accessory ensures outstanding performance and easy use which makes it the perfect deal for your...
      OEM design and manufacturing ensure top qualityCrafted from prime materials for long-term service
      $19.10
    • (0 reviews)
      # mpn358588433
      Pontiac Catalina GM 8.5" Axle 1975, Smart Sleeve Crush Sleeve by Ratech®. Made in USA. Designed with precision and functionality in mind, this accessory ensures outstanding performance and easy use which makes it the perfect deal for...
      OEM design and manufacturing ensure top qualityCrafted from prime materials for long-term service
      $13.45
    • (0 reviews)
      # mpn358588625
      Pontiac Catalina GM 8.5" Axle 1975, Solid Spacer with Shim Pack by Ratech®. Made in USA. Designed with precision and functionality in mind, this accessory ensures outstanding performance and easy use which makes it the perfect deal for...
      OEM design and manufacturing ensure top qualityCrafted from prime materials for long-term service
      $16.29
    • (0 reviews)
      # mpn2151979452
      Pontiac Catalina with GM 8.5" Series Axle with 2.73 and Up Gear Ratio with 10 Bolt 1975, Differential Carrier by Motive Gear®. Without Internal Kit. Carrier Type: Open. All Motive Gear products are engineered for their specific...
      Motive Gear uses the highest quality standards of manufacturingFrom machining and finishing to heat treatment company demand the best
      $77.55
    • (1 review)
      # 503554001
      Pontiac Catalina with 10 Bolt 1975, 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...
      Central contact patternCNC start to finish
      $210.38 - $265.28
    • (0 reviews)
      # mpn2151980576
      Pontiac Catalina with GM 7.5" Series Axle with 3.23 and Up Gear Ratio with 10 Bolt 1975, Rear Pro Gear Ring and Pinion Gear Set by Motive Gear®. Motive Gear Pro Gear ring and pinions are perfect for dedicated racing or off-road vehicle....
      Motive Gear uses the highest quality standards of manufacturingFrom machining and finishing to heat treatment company demand the best
      $448.50
    • (0 reviews)
      # 503446461
      Pontiac Catalina with 10 Bolt 1975, 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)
      # mpn358577553
      Pontiac Catalina with 28 Spline with GM 8.5" Series Axle with 2.73 and Up Gear Ratio with 10 Bolt 1975, HP™ Rear Differential by Auburn Gear®. Type: Limited Slip. High Performance. Auburn Gear’s flagship limited-slip differential...
      Expertly crafted from superior materialsProvides exceptional reliability
      $416.16
    • (0 reviews)
      # mpn358577567
      Pontiac Catalina with 28 Spline with GM 8.5" Series Axle with 2.73 and Up Gear Ratio with 10 Bolt 1975, Pro™ Rear Differential by Auburn Gear®. Type: Limited Slip. Turns your torque up another notch, offering an even higher bias ratio...
      Expertly crafted from superior materialsProvides exceptional reliability
      $518.98
    • (0 reviews)
      # mpn2232296000
      Pontiac Catalina with 1.20" Axle Shaft Diameter with GM 8.5" Series Axle with 2.73 to 5.13 Gear Ratio with 10 Bolt 1975, 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
      $763.99
    • (0 reviews)
      # mpn2232294994
      Pontiac Catalina with 1.20" Axle Shaft Diameter with GM 8.5" Series Axle with 2.73 and Up Gear Ratio with 10 Bolt 1975, Detroit Truetrac® Rear Differential by Eaton®. The Detroit Truetrac is a helical-gear style performance...
      Helical-style pinion gearsLimited-slip operation
      $516.27
    • (0 reviews)
      # mpn1579910692
      Pontiac Catalina with Manual Locking Hubs with 1.20" Axle Shaft Diameter with GM 8.5" Series Axle with 2.73 and Up Gear Ratio with 10 Bolt 1975, Posi™ Rear Differential by Eaton®. The Eaton Posi limited-slip differential prevents...
      Superior rebuildable designRace-bred carbon friction discs
      $509.99
    • (0 reviews)
      # 503462408
      Pontiac Catalina with 28 Spline 1975, Grip LS Traction System by Powertrax®. Type: Open. 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 - $457.67
    • (0 reviews)
      # 503644289
      Pontiac Catalina with Open Differential 1975, 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...
      Brute Force Devices For Rugged ApplicationsReplacement Of Differential Case Not Required
      $336.26 - $406.60
    • (0 reviews)
      # 503316297
      Pontiac Catalina with Open Differential 1975, 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 - $475.75
    • (0 reviews)
      # 503565437
      Pontiac Catalina 1975, 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, Richmond...
      Outstanding design and state of the art manufacturing techniquesExtensive testing ensures uncompromising reliability
      $221.45 - $345.75
    • (0 reviews)
      # mpn730872341
      Pontiac Catalina with 26 Spline / with 28 Spline with GM 7.5" Series Axle with 3.23 and Up Gear Ratio 1975, Rear Dura Grip Carrier Case by Yukon Gear & Axle®. Without Spider Gears. Dominate the track or hit the trails with confidence by...
      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
      $240.53
    • (0 reviews)
      # 503672341
      Pontiac Catalina 1975, Rear Dura Grip Positraction 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...
      Provides aggressive yet smooth traction to give you the confidence and performance you needFully rebuildable 4 spring design with composite clutches
      $495.09 - $495.67
    • (0 reviews)
      # 503552974
      Pontiac Catalina 1975, Rear 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...
      Smooth finishEasy Set-Up
      $249.99 - $392.38
    • (0 reviews)
      # 115962649
      Pontiac Catalina with 28 Spline 1975, Rear Standard Open Carrier Case by Yukon Gear & Axle®. Without Spider Gears. 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
      $135.54 - $240.53
    • (0 reviews)
      # mpn358496473
      Pontiac Catalina with 28 Spline with GM 8.5" Series Axle with 10 Bolt 1975, 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...
      Motive Gear uses the highest quality standards of manufacturingFrom machining and finishing to heat treatment company demand the best
      $89.77
    • (0 reviews)
      # 503322270
      Pontiac Catalina 1975, 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
      $51.56 - $67.90
    • (0 reviews)
      # 503663016
      Pontiac Catalina with 10 Bolt 1975, 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




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