Description
Quick Change Gear Set – 8500 Series – Set 21A – 10 Spline – 4.12 Ratios 6.32 / 2.69 – 4.86 Ratios 7.45 / 3.17 – Steel – Polished – Each
SKU: WIN8521A
🇺🇸 Express Shipping From USA
⏱️ Estimated Shipping: 1-3 days
🌍 Fast International Shipping Support
🏅 Not Ready For Shipping In 72 Hours, 100% Refund
Original price was: $128.16.$116.51Current price is: $116.51.
In stock
8 in stock
Your purchase is fully covered and protected. We aren't paid until your order is verified and shipped. Learn more.
| Weight | 6.73 lbs |
|---|---|
| Dimensions | 8.8 × 4.9 × 1.9 in |
| Spline | 10.0 |
| Set Number | 21A |
| Gear 1 Tooth Count | 15.0 |
| Gear 2 Tooth Count | 23.0 |
| 4:12 Ring And Pinion Low Ratio | 2.69 |
| 4:12 Ring And Pinion High Ratio | 6.32 |
| 4:57 Ring And Pinion Low Ratio | 2.98 |
| 4:57 Ring And Pinion High Ratio | 7.01 |
| 4:86 Ring And Pinion Low Ratio | 3.17 |
| 4:86 Ring And Pinion High Ratio | 7.45 |
| Spur Ratio | 1.533 |
| Heat Treaded | Yes |
| Alloy | 8620.0 |
| Material | Steel |
| Color | Polished |
| Finish | Polished |
| Quantity | Pair |
| Variant | Yes |
| Variant Group | Quick Change Gears12 |
| Variant Column | Set Number |
| Brand | |
| Condition | |
| Type | |
| Manufacturer Part Number | 8521A |
Quick Change Gear Set – 8500 Series – Set 21A – 10 Spline – 4.12 Ratios 6.32 / 2.69 – 4.86 Ratios 7.45 / 3.17 – Steel – Polished – Each
Below are estimated rates and delivery times for popular destinations; full carrier options are available at checkout.
Our dedicated team has years of experience managing international logistics and customs documentation to ensure smooth delivery from our US warehouse to your door. Please review our shipping policy and local import regulations before ordering.
Street Series
Front
Outboard
1 piece
Yes
11 in
Yes
37995368440
66844
401 GM Front Coil-Over Shock
Twintube
Hydraulic
Yes
10 in
Billet
Magnetic
Mechanical
Male
Red
Pro-Billet
Crank
None
Male
Black
Each
Pro Billet Front Drive
Magnetic
Mechanical
Male
Steel
Zinc
Plated
Each
Yes
Plastic
Red
Natural
Each
Stainless
Digital 6AL
Kit
Yes
Ignition Boxes and Controllers3
Color
Aluminum
Natural
Anodized
Each
Yes
Reviews
There are no reviews yet.