1986 Mercury Cougar Differentials & Components

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    • (1 review)
      # 111376477
      Mercury Cougar with Ford Series Axle 1986, 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 &...
      Direct-fit OE-quality replacement for your factory partHelps restore the proper functionality of your vehicle
      $186.37 - $261.39
    • (0 reviews)
      # 531071538
      Mercury Cougar 1986, 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 construction...
      Replacement eliminates driveline grinding and whining soundsDirect replacement for a proper fit
      $117.67 - $186.95
    • (1 review)
      # 68627676
      Mercury Cougar with Ford Series Axle 1986, 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...
      Uses Koyo bearings and racesExpertly crafted from premium materials
      $132.91 - $133.70
    • (1 review)
      # mpn2020890
      Mercury Cougar with 7.5" Ring Gear 1986, 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
      $84.13
    • (0 reviews)
      # mpn2412741
      Mercury Cougar with 7.5" Ring Gear 1986, 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
      $109.95
    • (0 reviews)
      # mpn739976600
      Mercury Cougar with 8.8" Ring Gear with Ford Series Axle with 28 Spline / with 31 Spline 1986, Rear Differential Bearing Kit by USA Standard Gear®. This kit uses Koyo bearings and races along with all high quality small parts. USA...
      Expertly crafted from premium materialsDesigned to match rigorous quality standards
      $101.99
    • (0 reviews)
      # mpn739977058
      Mercury Cougar with 8.8" Ring Gear with Ford Series Axle with 28 Spline / with 31 Spline 1986, Rear Pinion Installation Kit by USA Standard Gear®. USA Standard ring and pinion sets are the right choice to add confidence to your install....
      Expertly crafted from premium materialsDesigned to match rigorous quality standards
      $68.52
    • (0 reviews)
      # 68627777
      Mercury Cougar with Ford Series Axle 1986, 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...
      Expertly crafted from premium materialsDesigned to match rigorous quality standards
      $102.61 - $180.86
    • (0 reviews)
      # mpn358588620
      Mercury Cougar with 7.5" Ring Gear with General Motors Series Axle 1986, Basic Series Differential Kit 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
      $15.44
    • (0 reviews)
      # mpn358588430
      Mercury Cougar with 7.5" Ring Gear with General Motors Series Axle 1986, Differential Installation Kit 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
      $39.82
    • (0 reviews)
      # 531203259
      Mercury Cougar 1986, 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
      $7.11 - $10.54
    • (0 reviews)
      # mpn2035566
      Mercury Cougar with 8.8" Ring Gear 1986, 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...
      Designed to effectively reduce frictionUltimate load handling capability
      $11.93
    • (0 reviews)
      # mpn2054355
      Mercury Cougar with 7.5" Ring Gear / with 8.8" Ring Gear 1986, 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...
      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
      $10.47
    • (0 reviews)
      # 531187033
      Mercury Cougar 1986, 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
      $4.21 - $5.55
    • (0 reviews)
      # mpn2371034
      Mercury Cougar 1986, 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 pinion gear nut is...
      Direct replacement for a proper fit every timeDesigned specifically for rear-wheel drive vehicles
      $3.04
    • (0 reviews)
      # mpn2377088
      Mercury Cougar with 7.5" Ring Gear 1986, 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 to the rear...
      Replacement restores drivabilityDirect replacement for a proper fit
      $1.74
    • (0 reviews)
      # mpn1074426
      Mercury Cougar with 7.5" Ring Gear with Independent Rear Suspension with Ford Series Axle 1986, Rear Axle Differential Bearing by National®. This bearing is manufactured from high quality steel and constructed utilizing state-of-the-art...
      Premium bearing design matches OEM specificationsPrecision manufactured using premium-grade steel for outstanding durability and performance
      $7.78
    • (0 reviews)
      # mpn1074425
      Mercury Cougar with 7.5" Ring Gear with Independent Rear Suspension with Ford Transmission 1986, Rear Axle Differential Bearing Race by National®. This part is manufactured by one of the most trusted names in the automotive industry to...
      Premium bearing design matches OEM specificationsPrecision manufactured using premium-grade steel for outstanding durability and performance
      $4.16
    • (0 reviews)
      # 531080435
      Mercury Cougar with 7.5" Ring Gear with Independent Rear Suspension with Ford Series Axle 1986, Rear Differential Pinion Bearing by National®. This bearing is manufactured from high quality steel and constructed utilizing...
      Premium bearing design matches OEM specificationsPrecision manufactured using premium-grade steel for outstanding durability and performance
      $8.07 - $10.74
    • (0 reviews)
      # 531136154
      Mercury Cougar with 7.5" Ring Gear with Independent Rear Suspension with Ford Series Axle 1986, Rear Differential Pinion Race by National®. This part is manufactured by one of the most trusted names in the automotive industry to keep...
      Premium bearing design matches OEM specificationsPrecision manufactured using premium-grade steel for outstanding durability and performance
      $4.34 - $5.68
    • (0 reviews)
      # mpn1179151
      Mercury Cougar with 7.5" Ring Gear with Independent Rear Suspension with Ford Transmission 1986, Rear Outer Differential Pinion Repair Sleeve by National®. This part is manufactured by one of the most trusted names in the automotive...
      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
      $19.44
    • (0 reviews)
      # mpn1307887
      Mercury Cougar with 7.5" Ring Gear with Independent Rear Suspension with Ford Series Axle 1986, Rear Outer Differential Pinion Seal by National®. This product is made of high-quality materials to serve you for years to come. Designed...
      National oil seals are recognized worldwide for their quality and reliable performance for every type of repair.Design Type: Spring Loaded; Multi-Lip
      $9.47
    • (0 reviews)
      # mpn358588599
      Mercury Cougar with 7.5" Ring Gear with General Motors Series Axle 1986, 0.620" Crush Sleeve by Ratech®. 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
      $3.83
    • (0 reviews)
      # mpn358588579
      Mercury Cougar with 7.5" Ring Gear with General Motors Series Axle with 27 Spline 1986, Differential Bearing 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
      $55.04
    • (0 reviews)
      # mpn358588627
      Mercury Cougar with 7.5" Ring Gear with General Motors Series Axle 1986, Differential Bearing Spacer With Shim Pack 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
      $12.62
    • (0 reviews)
      # mpn358588671
      Mercury Cougar with 7.5" Ring Gear with General Motors Series Axle 1986, Differential Carrier Bearing 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
      $23.34
    • (0 reviews)
      # mpn358588466
      Mercury Cougar with 7.5" Ring Gear with General Motors Series Axle 1986, Differential Pinion Nut by Ratech®. 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
      $2.62
    • (0 reviews)
      # mpn358588439
      Mercury Cougar with 7.5" Ring Gear with General Motors Series Axle 1986, Pinion Shim Set by Ratech®. 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
      $9.53
    • (0 reviews)
      # mpn358588458
      Mercury Cougar with 7.5" Ring Gear with General Motors Series Axle 1986, Ring Gear Bolt Set by Ratech®. 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
      $14.72
    • (0 reviews)
      # mpn358588434
      Mercury Cougar with 7.5" Ring Gear with General Motors Series Axle 1986, Smart Sleeve Crush Sleeve by Ratech®. 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
      $9.62
    • (0 reviews)
      # 503662132
      Mercury Cougar with 10 Bolt 1986, Rear Differential Carrier by Motive Gear®. Location: Rear. All Motive Gear products are engineered for their specific application and manufactured in state of the art facilities. All of company products...
      Motive Gear uses the highest quality standards of manufacturingFrom machining and finishing to heat treatment company demand the best
      $87.53 - $289.17
    • (0 reviews)
      # mpn4517166286
      Mercury Cougar with Ford 7.5" Series Axle with 10 Bolt 1986, Rear Performance Ring and Pinion Gear Set by Motive Gear®. Location: Rear. Motive Gear Performance ring and pinions are perfect for dedicated racing or off-road vehicle. Gear...
      Central contact patternCNC start to finish
      $203.94
    • (0 reviews)
      # 503644274
      Mercury Cougar with Ford 7.5" Series Axle with 10 Bolt 1986, Rear Ring and Pinion Gear Set by Motive Gear®. Location: Rear. Motive Gear stock performance ring and pinions are excellent replacements for OE. Experienced installers prefer...
      Quiet operationComputer controlled heat treatment
      $227.48 - $232.42
    • (0 reviews)
      # mpn4517168048
      Mercury Cougar with 27 Spline with Toyota 7.5" Series Axle with 1.30" Axle Shaft Diameter 1986, Detroit Truetrac™ Rear Differential by Eaton®. Location: Rear. The Detroit Truetrac is a helical-gear style performance differential that...
      Helical-style pinion gearsLimited-slip operation
      $576.52
    • (0 reviews)
      # 503652258
      Mercury Cougar with Ford 8.8" Series Axle 1986, Rear Dura Grip Carrier Case by Yukon Gear & Axle®. Without Spider Gears. Location: Rear. Dominate the track or hit the trails with confidence by fine tuning your vehicle for neck-breaking...
      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
      $254.96
    • (0 reviews)
      # 503349267
      Mercury Cougar 1986, 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...
      Provides aggressive yet smooth traction to give you the confidence and performance you needFully rebuildable 4 spring design with composite clutches
      $486.52 - $524.49
    • (0 reviews)
      # 68627782
      Mercury Cougar with Ford 8.8" Series Axle 1986, 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...
      Available for many popular off-road & performance applicationsPatent pending design reduces common failures
      $715.77 - $722.85
    • (0 reviews)
      # 503327018
      Mercury Cougar 1986, Rear High Performance Ring and Pinion Gear Set by Yukon Gear & Axle®. Location: Rear. Yukon Ring and Pinion sets give you the confidence of knowing you’re running gears designed for the harshest of conditions....
      Smooth finishEasy Set-Up
      $232.54 - $414.33
    • (0 reviews)
      # 68627725
      Mercury Cougar 1986, Rear Standard Open Carrier Case by Yukon Gear & Axle®. Without Spider Gears. 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
      $148.35 - $327.02
    • (0 reviews)
      # 1028982605
      Mercury Cougar Base / LS / XR-7 with Ford 8.8" Series Axle with 10 Bolt 1986, ECTED Max™ Rear Limited Slip Differential by Auburn Gear®. With Selectable Full Locker. Location: Rear. The ECTED Max is a selectable traction device; an...
      Gearing is made from aircraft quality, 9310 heat treated billet steel to make it tough, durable and reliableSwitch the locker on or off "on-the-fly," at moderate road speeds with all 4 wheels on the ground
      $740.21
    • (0 reviews)
      # 1029094639
      Mercury Cougar Base / LS / XR-7 with 10 Bolt 1986, 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...
      Expertly crafted from superior materialsProvides exceptional reliability
      $416.16 - $434.52
    • (1 review)
      # 1029125505
      Mercury Cougar Base / LS / XR-7 with 10 Bolt 1986, 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...
      Expertly crafted from superior materialsProvides exceptional reliability
      $474.91 - $506.74
    • (0 reviews)
      # mpn4517168158
      Mercury Cougar Base / LS / XR-7 with 28 Spline with Ford 8.8" Series Axle with 10 Bolt 1986, Road Race™ Rear Limited Slip Differential by Auburn Gear®. Location: Rear. Auburn Gear, LLC. Has developed a performance limited-slip...
      Expertly crafted from superior materialsProvides exceptional reliability
      $483.48
    • (0 reviews)
      # mpn4517169589
      Mercury Cougar with 28 Spline with Open Differential with Ford 7.5" Series Axle 1986, Lock Right Locker by Powertrax®. Powertrax Lock-Right performance lockers’ straight-line performance is equal to a solid spool axle, yet they...
      Brute force devices for rugged applicationsReplacement of differential case not required
      $405.19
    • (0 reviews)
      # 503582470
      Mercury Cougar with Ford 7.5" Series Axle with 10 Bolt 1986, Rear Street Gear Ring and Pinion Gear Set by Richmond®. Location: Rear. Richmond Gear ring and pinions are perfect for any vehicle where performance and durability matters....
      Outstanding design and state of the art manufacturing techniquesExtensive testing ensures uncompromising reliability
      $212.41 - $214.67
    • (0 reviews)
      # 503632155
      Mercury Cougar with 31 Spline with Ford 8.8" Series Axle 1986, Rear Differential Locker by Aussie Locker®. Location: Rear. The Aussie Locker is the most advanced "traction added" Automatic Precision Locker in the world today....
      High quality at an affordable priceExpertly made from premium materials
      $333.02
    • (0 reviews)
      # mpn4517166257
      Mercury Cougar with 7.5" Series Axle 1986, 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...
      Motive Gear uses the highest quality standards of manufacturingFrom machining and finishing to heat treatment company demand the best
      $31.82
    • (0 reviews)
      # 126885003
      Mercury Cougar with GM 7.5" Series Axle with 10 Bolt 1986, Rear Differential Bearing Kit by Motive Gear®. Location: Rear. All Motive Gear products are engineered for their specific application and manufactured in state of the art...
      Motive Gear uses the highest quality standards of manufacturingFrom machining and finishing to heat treatment company demand the best
      $72.50 - $76.32
    • (0 reviews)
      # mpn4517166372
      Mercury Cougar with 28 Spline with 7.5" Series Axle with 10 Bolt 1986, Rear Differential Carrier Gear Kit by Motive Gear®. Location: Rear. Dominate the track or hit the trails with confidence by fine tuning your vehicle for...
      Motive Gear uses the highest quality standards of manufacturingFrom machining and finishing to heat treatment company demand the best
      $120.22
    • (0 reviews)
      # 126499876
      Mercury Cougar with GM 7.5" Series Axle with 10 Bolt 1986, Rear Differential Master Bearing Kit by Motive Gear®. Location: Rear. All Motive Gear products are engineered for their specific application and manufactured in state of the art...
      Motive Gear uses the highest quality standards of manufacturingFrom machining and finishing to heat treatment company demand the best
      $80.43 - $90.29
    • (0 reviews)
      # 503320089
      Mercury Cougar with 10 Bolt 1986, Rear Differential Super Bearing Kit by Motive Gear®. Location: Rear. Dominate the track or hit the trails with confidence by fine tuning your vehicle for neck-breaking speed and performance with this...
      Motive Gear uses the highest quality standards of manufacturingFrom machining and finishing to heat treatment company demand the best
      $106.76 - $119.58
    • (0 reviews)
      # 87436179
      Mercury Cougar 1986, Rear Differential Bearing Installation Kit by Yukon Gear & Axle®. With Timken Bearings and Races. Location: Rear. Dominate the track or hit the trails with confidence by fine tuning your vehicle for neck-breaking...
      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
      $146.25 - $154.57
    • (0 reviews)
      # 68627662
      Mercury Cougar 1986, 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...
      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
      $67.28 - $82.36
    • (0 reviews)
      # 87436190
      Mercury Cougar 1986, Rear Differential Master Overhaul Kit by Yukon Gear & Axle®. Location: Rear. Yukon Master Overhaul kits give you all the high quality parts you need to start and finish every differential job. Yukon offers more...
      Most complete kits on the marketComplete overhaul package to rebuild differential
      $168.28 - $174.88
    • (0 reviews)
      # 503673437
      Mercury Cougar 1986, Rear Differential Mini Installation Kit by Yukon Gear & Axle®. Location: Rear. Yukon Mini installation kits are a low cost solution for gear changes in newer vehicles where the bearings can be reused and includes...
      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
      $35.01 - $36.24
    • (0 reviews)
      # 68627734
      Mercury Cougar 1986, Rear Differential Pinion Installation Kit by Yukon Gear & Axle®. Location: Rear. Yukon Pinion installation kits are a terrific solution for gear installation on lower mileage vehicles where the carrier bearings and...
      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
      $102.98 - $114.42
    • (0 reviews)
      # 503665162
      Mercury Cougar with Ford 8.8" Series Axle 1986, Rear Mini Spool by Yukon Gear & Axle®. Location: Rear. Mini spools are a low-cost traction option for vehicles looking for full-time lockup. The mini spool installs into a standard open...
      Provides 100% traction to both wheels at all timesInstalls into standard open carrier case
      $142.98
    • (0 reviews)
      # 87436167
      Mercury Cougar 1986, Rear Spider Gear Set 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...
      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
      $141.63 - $234.18
    • (0 reviews)
      # mpn4517170296
      Mercury Cougar with Ford 7.5" Series Axle 1986, Rear Spider Gear Kit by Auburn Gear®. Location: Rear. Dominate the track or hit the trails with condidence 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
      $77.85
    • (0 reviews)
      # mpn4517170054
      Mercury Cougar with Ford 7.5" Series Axle 1986, 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...
      Outstanding design and state of the art manufacturing techniquesExtensive testing ensures uncompromising reliability
      $30.28




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