1981 Chevrolet K20 Differential Spider Gear Kits
Your 1981 Chevrolet K20 might be the best vehicle you’ve ever owned. Or you may just be struggling to keep it highway-approved. No matter the situation, Advance Auto Parts has the Differential Spider Gear Kits you desperately need.
We currently carry 10 Differential Spider Gear Kits to choose from for your 1981 Chevrolet K20, and our inventory prices range from as little as $207.99 up to $606.99.
On top of low prices, Advance Auto Parts offers 2 different trusted brands of Differential Spider Gear Kits for the 1981 Chevrolet K20. We only sell parts from trusted brands like USA Standard Gear so that you can find quality parts you can count on.
Have parts delivered straight to your home, or find the nearest Advance Auto Parts store to check out our Differential Spider Gear Kits stock in-person!
Differential Spider Gear Kits for Your 1981 Chevrolet K20
USA Standard Gear – Standard Spider Gear Set For GM 8.5", 28 Spline (Part No.39026)
from
$209.99
Product Features:
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- Spider gear kit
- Fits GM 8.5″ 28 spline open differential
- Includes two side gears, two pinion gears, cross pin shaft, cross pin bolt and spider gear thrust washers.
Yukon Gear – Positraction Internals For 8.5" GM With 28 Spline Axles (Part No.16052)
from
$336.99
Yukon positraction internals (0.795″ diameter) for 8.5″ GM with 28 spline axles. Yukon uses higher quality materials and better techniques than OEM to ensure a longer lasting spider gear set. This kit does not include clutches. All components come with a one year warranty against manufacturing defects. This kit is compatible with Yukon Dura Grip or Eaton positractions. It will not fit a factory Gov-Loc positraction.
Product Features:
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Product Features:
- Spider gear kit
- Fits GM 8.5″ with 28 spline Dura Grip positraction
- Includes two side gears, four pinion gears, cross pin shaft, roll pin and spider gear thrust washers.
USA Standard Gear – Standard Spider Gear Set For 33 Spline GM 9.5" And Pre ’06 GM 9.25IFS (Part No.39029)
from
$214.99
Product Features:
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- Spider gear kit
- Fits GM 9.5″ open differential
- Includes two side gears, two pinion gears, cross pin shaft, cross pin bolt and spider gear thrust washers.
Yukon Gear – Positraction Internals For 9.5" GM With 33 Spline Axles (Part No.16057)
from
$606.99
Yukon positraction internals for 9.5″ GM with 33 spline axles. Yukon uses higher quality materials and better techniques than OEM to ensure a longer lasting spider gear set. This kit does not include clutches. All components come with a one year warranty against manufacturing defects. These internals are for Eaton positractions only. They will not fit factory positractions.
Product Features:
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Product Features:
- Spider gear kit
- Fits GM 9.5″ with Eaton positraction
- Includes two side gears, four pinion gears, cross pin shaft, roll pin and spider gear thrust washers.
Yukon Gear – 18 Plate Steel Clutches For GM 8.2", GM 8.5", 12T, 12P, Ford 8.8" & Cast Iron ‘Vette (Part No.16110)
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$483.99
Product Features:
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- Clutch kit
- Fits Ford 8.8″, 1963-1979 Corvette, GM 12 bolt passenger car and truck, 8.2″, 8.5″ and 8.6″ Dura Grip positraction
- 18 piece kit
- Steel clutches
Yukon Gear – Eaton-Type 14 Plate Carbon Clutch Set For 9.5" GM And 9.75" Ford (Part No.16058)
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$362.99
Eaton-type 14 plate Carbon clutch set for 9.5″ GM and 9.75″ Ford.
Product Features:
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Product Features:
- Clutch kit
- Fits GM 9.5″ with Eaton positraction
- Carbon fiber clutches
USA Standard Gear – Standard Spider Gear Set For GM 10.5" 14 Bolt Truck (Part No.39022)
from
$318.99
Product Features:
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- Spider gear kit
- Fits GM 10.5″ 14 bolt truck open differential
- Includes two side gears, four pinion gears, cross pin shaft, roll pin and spider gear thrust washers.
Yukon Gear – Standard Open Spider Gear Kit For GM 10.5" And 14T With 30 Spline Axles (Part No.16044)
from
$315.99
Yukon standard open spider gear kit for GM 10.5″ and 14T with 30 spline axles. Yukon uses higher quality materials and better techniques than OEM to ensure a longer lasting spider gear set. All components come with a one year warranty against manufacturing defects.
Product Features:
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Product Features:
- Spider gear kit
- Fits GM 10.5″ 14 bolt truck open differential
- Includes two side gears, four pinion gears, cross pin shaft, cross pin bolt and spider gear thrust washers.
Yukon Gear – Standard Open Spider Gear Kit For 8.5" GM With 28 Spline Axles (Part No.16054)
from
$217.99
Yukon standard open spider gear kit for 8.5″ GM with 28 spline axles. Yukon uses higher quality materials and better techniques than OEM to ensure a longer lasting spider gear set. All components come with a one year warranty against manufacturing defects.
Product Features:
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Product Features:
- Spider gear kit
- Fits GM 8.5″ open differential with 28 spline axles
- Includes two side gears, two pinion gears, cross pin shaft, cross pin bolt and spider gear thrust washers.
Yukon Gear – Standard Open Spider Gear Kit For 8.5" GM With 30 Spline Axles (Part No.16055)
from
$207.99
Yukon standard open spider gear kit for 8.5″ GM with 30 spline axles. Yukon uses higher quality materials and better techniques than OEM to ensure a longer lasting spider gear set. All components come with a one year warranty against manufacturing defects.
Product Features:
See More
Product Features:
- Spider gear kit
- Fits GM 8.5″ open differential with 30 spline axles
- Includes two side gears, two pinion gears, cross pin shaft, cross pin bolt and spider gear thrust washers.
FAQs for 1981 Chevrolet K20 Differential Spider Gear Kits
What are the most popular Differential Spider Gear Kits for the 1981 Chevrolet K20?
With 2 brands you can trust, our most popular Differential Spider Gear Kits for the 1981 Chevrolet K20 parts are:
from
$209.99
This product is not rated
Standard Spider Gear Set For GM 8.5", 28 Spline
Differential Spider Gear Kits
from
$336.99
This product is not rated
Positraction Internals For 8.5" GM With 28 Spline Axles
Differential Spider Gear Kits
from
$214.99
This product is not rated
Standard Spider Gear Set For 33 Spline GM 9.5" And Pre ’06 GM 9.25IFS
Differential Spider Gear Kits
