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USA Standard Gear ZIKF8.8-S-31 Standard Open Differential Spider Gear Set for Ford 8.8", 31 Spline
✅ In stock
F
Grade
Analysis Confidence
100%
⚠️ Price may have changed. Last updated 24+ hours ago — confirm on Amazon.
Check Deal at Amazon
Price verified Sep 19, 2026 4:06 AM · Prices & availability subject to change
Is This a Good Price on Amazon?
💤 Not a Deal- 💤Verdict: Not a Deal. Price is at or above historical norms. Best to wait for a sale.
- 💰The current price is slightly above the going rate for this product — worth watching for a drop.
- 🏷️The retail sticker price has been slashed by 55% — a steep markdown from the official listing.
- 📉This is the most affordable price seen in roughly three months — a solid near-term opportunity.
- ➡️Pricing has held fairly steady, with no strong push in either direction.
How We Scored This Deal
Price Competitiveness
0/28
Recent Value
0.43/22
Market Standing
2.29/20
Deal Strength
7/20
Momentum
4/10
📝 Product Overview
🏪 Sold by
Quick Performance Racing
🚚 Shipping
Free Shipping
Product Details
✓USA Standard Gear standard spider gear set for Ford 8. 8", 31 spline, open differential.Material:Steel
✓7/8" cross pin shaft. 31 Spline application.
✓Does not work on 28 Spline applications. Does not work on positraction/limited slip differentials.
✓1985 & older 31 spline applications have a 3/4" cross pin shaft and require a new carrier case.
✓Technical Note 1: There were both 28 and 31 spline factory options available for over lapping years. Please check your spline count before ordering.
✓Technical Note 2: There were limited slip and standard open carriers available for these applications, where ordering this part for the incorrect case would create fitment issues. Please open your differential cover and confirm the factory carrier in your vehicle.
✓Technical Note 3: Aftermarket 31 spline carrier cases and upgraded 31 spline axle shafts are available for many of the stock 28 spline applications. Again, we strongly urge you to first open up your differential and count the splines on your carrier to ensure proper fitment.
⚙️ Specifications
USA Standard Gear
USA Standard Gear
ZIKF8.8-S-31 ZIKF8.8-S Standard spider gear set for Ford 8.8", 31 spline
5.2 pounds
12 x 12 x 3 inches
ZIKF8.8-S-31
Machined
ZIKF8.8-S-31
ZIKF8.8S31
Technical Note 0: 28 spline carriers and 1985 & older 31 spline applications have a 3/4" cross pin shaft and require a new carrier case., Technical Note 1: There were both 28 and 31 spline factory options available for over lapping years. Please check your spline count before ordering., Technical Note 2: There were limited slip and standard open carriers available for these applications, where ordering this part for the incorrect case would create fitment issues. Please open your differential cover and confirm the factory carrier in your vehicle., Technical Note 3: Aftermarket 31 spline carrier cases and upgraded 31 spline axle shafts are available for many of the stock 28 spline applications. Again, we strongly urge you to first open up your differential and count the splines on your carrier to ensure proper fitment., Technical Note: Does not work on 28 Spline applications, Technical Notes: 7/8" cross pin shaft. 31 Spline application., USA Standard Gear standard spider gear set for Ford 8. 8", 31 spline
Manufacturer
USA Standard Gear
Brand
USA Standard Gear
Model
ZIKF8.8-S-31 ZIKF8.8-S Standard spider gear set for Ford 8.8", 31 spline
Item Weight
5.2 pounds
Product Dimensions
12 x 12 x 3 inches
Item model number
ZIKF8.8-S-31
