Quickchange Differential 10 Spline Gearsets

SKU: QCGS-2420ISF
Availability: in stock Many in stock Out of stock You can purchase this product but it's out of stock

Quickchange Differential 10 Spline Gearsets

$250.00 $400.00

Shipping Ask about this product

Vendor: Speedtek Auto Racing
Product Type: Drivetrain
Barcode:

DESCRIPTION

Speedtek 10” Quick Change Differential Gearsets

Universal Fitment
Compatible with all quick change differentials using 10-spline shafts.

Versatile Ratio Selection
Our gearsets are labeled from shortest to longest ratio, based on a 33-tooth crown wheel and 8-tooth pinion (33/8 = 4.12 final drive).
Each gearset offers two usable ratios – a Low and a High – depending on how the gears are positioned in the differential.

### 🏁 **Dog Engagement Gearset Ratio Options**

| # | Tooth Count | Low Ratio | High Ratio |
| -- | --------------------------- | -------- | --------- |
| 1 | 23 / 23 | 4.12 | 4.12 |
| 2 | 27 / 28 | 3.97 | 4.27 |
| 3 | 19 / 20 | 3.91 | 4.34 |
| 4 | 25 / 23 | 3.80 | 4.48 |
| 5 | 29 / 26 | 3.70 | 4.60 |
| 6 | 26 / 23 | 3.65 | 4.66 |
| 7 | 24 / 21 | 3.61 | 4.71 |
| 8 | 24 / 28 | 3.53 | 4.81 |
| 9 | 24 / 20 | 3.44 | 4.95 |
| 10 | 27 / 22 | 3.36 | 5.06 |
| 11 | 25 / 20 | 3.30 | 5.16 |
| 12 | 23 / 18 | 3.23 | 5.27 |
| 13 | 25 / 19 | 3.14 | 5.43 |
| 14 | 26 / 19 | 3.02 | 5.64 |
| 15 | 27 / 19 | 2.90 | 5.86 |
| 16 | 27 / 18 | 2.75 | 6.19 |
| 17 | 27 / 17 | 2.60 | 6.55 |
| 18 | 26 / 17 | 2.50 | 6.79 |
| 19 | 28 / 16 | 2.36 | 7.22 |
| 20 | 16 / 30 | 2.23 | 7.73 |

Key Features

Manufactured from Lightweight 8620H Billet Steel
Precision-ground for ultra-smooth and quiet operation
Optional ISOTROPIC SUPER FINISHING (ISF) available for reduced friction and improved durability

Availability & Warranty

Estimated Release: Late 2025
Standard Warranty: 6-month unconditional coverage
Extended Warranty Program: Available upon request – Contact Us to learn more

SHIPPING & LEAD TIME

If product Ex-Stock Australia, Product will be sent within 3-5 Business days. If product Not instock AUS, a 3-4 week lead time will apply.

REVIEWS

RETURNS POLICY

We have a 30-day return policy, which means you have 30 days after receiving your item to request a return. To be eligible for a return, your item must be in the same condition that you received it, unworn or unused, with tags, and in its original packaging. You’ll also need the receipt or proof of purchase. To start a return, you can contact us at admin@speedtekautoracing.com. If your return is accepted, we’ll send you a return shipping label, as well as instructions on how and where to send your package. Items sent back to us without first requesting a return will not be accepted. Please note, a restocking fee of 15% will apply to any returned goods. You can always contact us for any return question at admin@speedtekautoracing.com. Damages and issues Please inspect your order upon reception and contact us immediately if the item is defective, damaged or if you receive the wrong item, so that we can evaluate the issue and make it right. Exceptions / non-returnable items Certain types of items cannot be returned, like perishable goods (such as food, flowers, or plants), custom products (such as special orders or personalized items), and personal care goods (such as beauty products). We also do not accept returns for hazardous materials, flammable liquids, or gases. Please get in touch if you have questions or concerns about your specific item. Unfortunately, we cannot accept returns on sale items or gift cards. Exchanges The fastest way to ensure you get what you want is to return the item you have, and once the return is accepted, make a separate purchase for the new item. Refunds We will notify you once we’ve received and inspected your return, and let you know if the refund was approved or not. If approved, you’ll be automatically refunded on your original payment method. Please remember it can take some time for your bank or credit card company to process and post the refund too.

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