1978 Pontiac Grand Prix Differential Spider Gear Kits

Your 1978 Pontiac Grand Prix 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 6 Differential Spider Gear Kits to choose from for your 1978 Pontiac Grand Prix, and our inventory prices range from as little as $156.99 up to $483.99.

On top of low prices, Advance Auto Parts offers 2 different trusted brands of Differential Spider Gear Kits for the 1978 Pontiac Grand Prix. 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 1978 Pontiac Grand Prix

USA Standard Gear – Standard Spider Gear Set For GM 8.5", 28 Spline (Part No.39026)

Standard Spider Gear Set For GM 8.5", 28 Spline

from

$209.99
Product Features:
  • 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.
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USA Standard Gear – Standard Spider Gear Set For GM 7.5", 26 Spline (Part No.39023)

Standard Spider Gear Set For GM 7.5", 26 Spline

from

$156.99
Product Features:
  • Spider gear kit
  • Fits GM 7.5″ 26 spline open differential
  • Includes two side gears, two pinion gears, cross pin shaft, cross pin bolt and spider gear thrust washers.
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Yukon Gear – Positraction Internals For 8.5" GM With 28 Spline Axles (Part No.16052)

Positraction Internals For 8.5" GM With 28 Spline Axles

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:
  • 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.
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Yukon Gear – 18 Plate Steel Clutches For GM 8.2", GM 8.5", 12T, 12P, Ford 8.8" & Cast Iron ‘Vette (Part No.16110)

18 Plate Steel Clutches For GM 8.2", GM 8.5", 12T, 12P, Ford 8.8" & Cast Iron 'Vette

from

$483.99
Product Features:
  • 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
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Yukon Gear – Standard Open Spider Gear Kit For 8.5" GM With 28 Spline Axles (Part No.16054)

Standard Open Spider Gear Kit For 8.5" GM With 28 Spline Axles

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:
  • 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.
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Yukon Gear – 14 Plate Dura Grip Composite Clutches, GM 7.5 (Part No.16119)

14 Plate Dura Grip Composite Clutches, GM 7.5

from

$202.99
14 plate DURAGRIP COMPOSITE clutches, GM 7.5.

Product Features:
  • Clutch kit
  • Fits GM 7.5″ and 7.625″ with Dura Grip positraction
  • Steel clutches
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FAQs for 1978 Pontiac Grand Prix Differential Spider Gear Kits

What are the most popular Differential Spider Gear Kits for the 1978 Pontiac Grand Prix?

With 2 brands you can trust, our most popular Differential Spider Gear Kits for the 1978 Pontiac Grand Prix parts are:
Standard Spider Gear Set For GM 8.5", 28 Spline
from $209.99
This product is not rated
Standard Spider Gear Set For GM 8.5", 28 Spline
Differential Spider Gear Kits
Standard Spider Gear Set For GM 7.5", 26 Spline
from $156.99
This product is not rated
Standard Spider Gear Set For GM 7.5", 26 Spline
Differential Spider Gear Kits
Positraction Internals For 8.5" GM With 28 Spline Axles
from $336.99
This product is not rated
Positraction Internals For 8.5" GM With 28 Spline Axles
Differential Spider Gear Kits