1977 GMC Jimmy Differentials

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    • (0 reviews)
      # 503550042
      GMC Jimmy 4.1L / 5.0L / 5.7L 1977, Air Locker by ARB®. Air locker locking differentials allow you to tackle the toughest terrain. The world's premier traction aid, ARB air lockers keep you moving in all conditions. Created to provide...
      Differential CaseFlange Cap Assembly
      $940.50
    • (0 reviews)
      # 742360454
      GMC Jimmy with GM 8.875" Series Axle with 12 Bolt 1977, Rear A-Line Ring and Pinion Gear Set by Motive Gear®. Location: Rear. Motive Gear stock performance ring and pinions are excellent replacements for OE. Experienced installers...
      Quiet operationComputer controlled heat treatment
      $139.52 - $147.24
    • (0 reviews)
      # 742233752
      GMC Jimmy 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 strength, quality, and...
      Quiet operationComputer controlled heat treatment
      $185.78 - $303.61
    • (0 reviews)
      # 742313443
      GMC Jimmy with 30 Spline 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 combines the...
      Extreme Traction PerformanceEnables a 2 Wheel Drive to outperform a 4 Wheel Drive in poor traction conditions
      $430.01 - $452.01
    • (0 reviews)
      # 742236718
      GMC Jimmy with 30 Spline with GM 8.875" Series Axle 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...
      Comes Fully AssembledCarbon Fiber and Steel Friction Plate Technology
      $438.45 - $448.19
    • (0 reviews)
      # 1028886142
      GMC Jimmy 1977, Detroit Locker™ Differential by Eaton®. The Detroit Locker is a 100%-automatic locking differential that provides ultimate traction for mild to extreme vehicle applications. Its unique, bullet-proof design is...
      100% automatic locking - no driver action neededProvides maximum amount of traction to both wheel ends
      $704.75 - $823.58
    • (0 reviews)
      # 1029307512
      GMC Jimmy 1977, Posi™ Differential by Eaton®. The Eaton Posi limited-slip differential prevents wheel slip before it can get started. To do that, carbon disc clutch packs, preloaded by a central spring assembly, are located behind...
      Superior rebuildable designRace-bred carbon friction discs
      $454.41 - $478.79
    • (0 reviews)
      # 503694213
      GMC Jimmy 1977, Differential Carrier by Motive Gear®. Without Internal Kit. 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
      $77.55 - $288.08
    • (0 reviews)
      # 1146112232
      GMC Jimmy with 3.90 and Up Gear Ratio with GM 8.875" Series Axle with 12 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
      $322.73 - $357.66
    • (0 reviews)
      # mpn4517167240
      GMC Jimmy with 2.73 and Up Gear Ratio with 8.5" Series Axle with 10 Bolt 1977, Differential Carrier Case by G2 Axle & Gear®. Dominate the track or hit the trails with confidence by fine tuning your vehicle for neck-breaking speed and...
      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
      $129.99
    • (0 reviews)
      # 1029172587
      GMC Jimmy 4.1L / 5.0L / 5.7L 1977, HP™ Limited Slip Differential by Auburn Gear®. High Performance. Auburn Gear’s flagship limited-slip differential gives you smooth torque-sensing operation with the correct bias ratios to out...
      Expertly crafted from superior materialsProvides exceptional reliability
      $390.46 - $416.16
    • (0 reviews)
      # 1029076559
      GMC Jimmy 4.1L / 5.0L / 5.7L 1977, Pro™ Limited Slip Differential by Auburn Gear®. Turns your torque up another notch, offering an even higher bias ratio and faster sensing reaction than HP for the very best in controlled power...
      Expertly crafted from superior materialsProvides exceptional reliability
      $474.91 - $518.98
    • (0 reviews)
      # 1029160526
      GMC Jimmy 1977, Detroit Truetrac™ Differential by Eaton®. The Detroit Truetrac is a helical-gear style performance differential that maximizes wheel traction and enhances driving and handling characteristics. Operation of the Truetrac...
      Helical-style pinion gearsLimited-slip operation
      $539.47 - $558.41
    • (0 reviews)
      # mpn4517168990
      GMC Jimmy with 30 Spline with 3.73 and Down Gear Ratio with Dana 44 Series Axle with Dual Drilled for 3/8" Ring Gear Bolts / with Dual Drilled for 7/16" Ring Gear Bolts 1977, Grip Pro Traction System by Powertrax®. The Powertrax Grip...
      Comes Fully AssembledDelivers Progressive and Variable Traction
      $424.97
    • (0 reviews)
      # 503611352
      GMC Jimmy with 30 Spline 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....
      Brute Force Devices For Rugged ApplicationsReplacement Of Differential Case Not Required
      $332.03 - $343.29
    • (0 reviews)
      # mpn4517169411
      GMC Jimmy with 30 Spline with 3.92 and Up Gear Ratio with Dana 44 Series Axle 1977, Open Grip Lok Traction System by Powertrax®. If you are looking for the ultimate in traction, the Powertrax Grip Lok can handle the torque of engines...
      Comes Fully AssembledTraction Adding Differential Technology
      $600.71
    • (0 reviews)
      # mpn4517169459
      GMC Jimmy with 2.73 Ratio and Numerically Higher with GM 8.5" Series Axle 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)
      # 1029310591
      GMC Jimmy 1977, Excel™ Ring and Pinion Gear Set 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 lifestyle,...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $164.95 - $179.95
    • (0 reviews)
      # 742112767
      GMC Jimmy with GM 8.875" Series Axle with 12 Bolt 1977, 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. Made...
      Outstanding design and state of the art manufacturing techniquesExtensive testing ensures uncompromising reliability
      $214.67 - $254.22
    • (0 reviews)
      # 1146087349
      GMC Jimmy 1977, Differential Locker by OX Off Road®. OX Lockers can instantly lock differentials and allow you to tackle the toughest off-road terrain. The world's best traction aid, OX Lockers keep you moving in all conditions. OX...
      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)
      # 742314409
      GMC Jimmy with 30 Spline with Dana 44 Series Axle 1977, Front Differential Locker by Aussie Locker®. Location: Front. The Aussie Locker is the most advanced "traction added" Automatic Precision Locker in the world today. Specifically...
      High quality at an affordable priceExpertly made from premium materials
      $289.75
    • (0 reviews)
      # 990392130
      GMC Jimmy 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)
      # 742321409
      GMC Jimmy 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 quality control...
      Motive Gear uses the highest quality standards of manufacturingFrom machining and finishing to heat treatment company demand the best
      $77.41 - $94.73
    • (0 reviews)
      # 742171719
      GMC Jimmy 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
      $104.99 - $245.80
    • (0 reviews)
      # 503700252
      GMC Jimmy 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 quality...
      Motive Gear uses the highest quality standards of manufacturingFrom machining and finishing to heat treatment company demand the best
      $32.11 - $59.93
    • (0 reviews)
      # 742153755
      GMC Jimmy 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 rigid quality...
      Motive Gear uses the highest quality standards of manufacturingFrom machining and finishing to heat treatment company demand the best
      $81.02 - $120.37
    • (0 reviews)
      # 503695657
      GMC Jimmy 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 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
      $81.49 - $82.29
    • (0 reviews)
      # 742169749
      GMC Jimmy with GM 8.875" Series Axle with 12 Bolt 1977, 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...
      Motive Gear uses the highest quality standards of manufacturingFrom machining and finishing to heat treatment company demand the best
      $113.80 - $118.62
    • (0 reviews)
      # 126498792
      GMC Jimmy 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 - $210.99
    • (0 reviews)
      # mpn4517168046
      GMC Jimmy 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 better...
      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)
      # 503472165
      GMC Jimmy 1977, Differential Installation Kit by G2 Axle & Gear®. For low mileage vehicles, G2 offers installation kits that have all the same components as the master kits, sans the bearings. This is an economically priced kit that...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $30.99 - $56.99
    • (0 reviews)
      # 503377103
      GMC Jimmy 1977, Differential Master Installation Kit by G2 Axle & Gear®. G2’s master installation kits come complete with everything you need to properly set up your ring and pinion gear set. Designed utilizing the latest technology,...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $121.99 - $128.99
    • (0 reviews)
      # 742342465
      GMC Jimmy 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 this premium differential gear installation...
      Outstanding design and state of the art manufacturing techniquesExtensive testing ensures uncompromising reliability
      $27.10 - $37.00
    • (0 reviews)
      # mpn4517169976
      GMC Jimmy with GM 8.875" Series Axle 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...
      Outstanding design and state of the art manufacturing techniquesExtensive testing ensures uncompromising reliability
      $157.24
    • (0 reviews)
      # 503519359
      GMC Jimmy 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 service kits are convenient for getting...
      Outstanding design and state of the art manufacturing techniquesExtensive testing ensures uncompromising reliability
      $34.03 - $50.31
    • (0 reviews)
      # 1029256548
      GMC Jimmy 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 vehicle and lifestyle,...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $82.49 - $91.67
    • (0 reviews)
      # 1029094533
      GMC Jimmy with 30 Spline 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...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $101.92 - $115.94
    • (0 reviews)
      # 503588375
      GMC Jimmy 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 performance with this premium differential component that...
      Outstanding design and state of the art manufacturing techniquesExtensive testing ensures uncompromising reliability
      $100.35 - $123.74
    • (0 reviews)
      # 503400332
      GMC Jimmy 1977, Spool 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 the ultimate in high...
      Outstanding design and state of the art manufacturing techniquesExtensive testing ensures uncompromising reliability
      $195.90 - $255.39
    • (0 reviews)
      # mpn4515290647
      GMC Jimmy 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)
      # 1017022768
      GMC Jimmy 1977, Ring and Pinion Installation Bearing Kit by AllStar Performance®.
      Precise manufacturing and high-grade materialsExceptional performance at a competitive price
      $99.99 - $112.99
    • (0 reviews)
      # 1066632507
      GMC Jimmy 1977, Ring and Pinion Installation Shim Kit by AllStar Performance®.
      Precise manufacturing and high-grade materialsExceptional performance at a competitive price
      $38.99 - $45.99
    • (0 reviews)
      # 503528155
      GMC Jimmy 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 control...
      Motive Gear uses the highest quality standards of manufacturingFrom machining and finishing to heat treatment company demand the best
      $16.09 - $21.36
    • (0 reviews)
      # mpn4517167611
      GMC Jimmy 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)
      # 503557332
      GMC Jimmy 1977, Differential Pinion Nut 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 delivers the...
      Motive Gear uses the highest quality standards of manufacturingFrom machining and finishing to heat treatment company demand the best
      $1.82 - $3.75
    • (0 reviews)
      # 503500335
      GMC Jimmy 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 and performance with this premium differential component that delivers...
      Motive Gear uses the highest quality standards of manufacturingFrom machining and finishing to heat treatment company demand the best
      $6.65 - $7.59
    • (0 reviews)
      # 503322613
      GMC Jimmy 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 differential component that delivers...
      Motive Gear uses the highest quality standards of manufacturingFrom machining and finishing to heat treatment company demand the best
      $5.57 - $16.50
    • (0 reviews)
      # 503341081
      GMC Jimmy 1977, Differential Pinion Shim Pack by Motive Gear®. All Motive Gear products are engineered for their specific application and manufactured in state of the art facilities. All of company products undergo rigid quality control...
      Motive Gear uses the highest quality standards of manufacturingFrom machining and finishing to heat treatment company demand the best
      $6.94 - $14.41
    • (0 reviews)
      # 503377432
      GMC Jimmy 1977, Differential Ring Gear Bolt 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 delivers...
      Motive Gear uses the highest quality standards of manufacturingFrom machining and finishing to heat treatment company demand the best
      $2.31 - $2.47
    • (0 reviews)
      # 503422484
      GMC Jimmy 4.1L / 5.0L / 5.7L with 28 Spline with 2.73 and Up Gear Ratio with GM 8.5" Series Axle with 10 Bolt 1977, Front Differential Spring Retainer Service Kit by Auburn Gear®. Location: Front. Dominate the track or hit the trails...
      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
      $107.22
    • (0 reviews)
      # 742065770
      GMC Jimmy 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 No-Slip Traction Systems...
      High quality at an affordable priceExpertly made from premium materials
      $19.99 - $23.99
    • (0 reviews)
      # 742054783
      GMC Jimmy 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 the...
      Outstanding design and state of the art manufacturing techniquesExtensive testing ensures uncompromising reliability
      $140.23 - $143.82
    • (0 reviews)
      # 742190788
      GMC Jimmy 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 the...
      Outstanding design and state of the art manufacturing techniquesExtensive testing ensures uncompromising reliability
      $15.75 - $41.42
    • (0 reviews)
      # mpn4517169130
      GMC Jimmy with 30 Spline with Dana 44 Series Axle 1977, Front Differential Locker Pin and Spring Kit by Aussie Locker®. Location: Front. Dominate the track or hit the trails with condidence by fine tuning your vehicle for neck-breaking...
      High quality at an affordable priceExpertly made from premium materials
      $35.40
    • (0 reviews)
      # 990430105
      GMC Jimmy 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 and...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $18.99
    • (0 reviews)
      # mpn4515290619
      GMC Jimmy 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 perform...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $4.99
    • (0 reviews)
      # 990417375
      GMC Jimmy 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 vehicle...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $6.99
    • (0 reviews)
      # mpn4515294792
      GMC Jimmy with GM 7.5" Series Axle 1977, Ring Gear Spacer by AllStar Performance®.
      $52.99
    • (0 reviews)
      # 531171911
      GMC Jimmy 1977, Front 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 ensures...
      Replacement eliminates driveline grinding and whining soundsDirect replacement for a proper fit
      $146.83 - $198.95
    • (0 reviews)
      # 531179914
      GMC Jimmy 1977, 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. The kit includes bearings,...
      Replacement eliminates driveline grinding and whining soundsRobust steel construction ensures durability for years of service
      $122.95 - $138.95




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