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Quickchange Differential 10
Quickchange Differential 10
Quickchange Differential 10
Quickchange Differential 10
Quickchange Differential 10
Quickchange Differential 10
Quickchange Differential 10
Quickchange Differential 10
Quickchange Differential 10
Quickchange Differential 10
Quickchange Differential 10
Quickchange Differential 10
Quickchange Differential 10
Quickchange Differential 10
Quickchange Differential 10
Quickchange Differential 10
Quickchange Differential 10
Quickchange Differential 10
Quickchange Differential 10
Quickchange Differential 10
  • SKU: QC10
  • Availability: in stock Many in stock Out of stock You can purchase this product but it's out of stock

Quickchange Differential 10" Universal Fitment Speedtek Motorsport Quick Change Diff

$5,300.00 $6,500.00
DESCRIPTION

Speedtek 10” Quick Change Differential

Built for Power. Crafted for Precision. Tested on the Track.
Designed to handle over 1000HP, our differentials are made using only premium materials and precision machining processes to deliver unmatched durability and performance where it matters most.


Key Features

Gravity Cast High-Strength Housing
→ Rigid, heavy-duty design with precision-machined finishes for unmatched durability.

6061-T6 Billet Aluminium Side Bells
→ Reinforced for maximum rigidity under extreme loads and torque demands.

4140 Chromoly 1350 Series Front Yoke Flange
→ Engineered to handle serious power while maintaining drivetrain reliability.

300M Billet Steel Main Shaft
→ Perfectly balanced and machined to deliver superior strength and rotational stability.

300M Billet Steel 35-Spline Half Shafts
→ Offered in Porsche 930 or Nissan 6x1 bolt patterns for wide compatibility.
→ Nissan 6x1 bolt patterns allows you to utilize factory axles/driveshafts

6061-T6 Billet Aluminium Centre Spool
→ Integrated 35-spline hardened steel insert—ready for the most extreme applications.

8620H Steel Crown & Pinion Gear Set
→ Surface-ground and precision-cut for smooth, quiet operation and exceptional wear resistance.

6061-T6 Billet Rear Cover
→ Designed with integrated cooling fins
→ Built-in fill and level bungs for fast and easy fluid changes

Wheel Speed Cherry Sensor Provision
→ Designed for accurate wheel speed data integration.

Multiple Sensor Ports
→ For real-time temperature monitoring—ensuring optimal performance and longevity.

Premium Bearings & Oil Seals
→ Built to withstand high stress and provide consistent, long-term operation.

Zinc-Coated Grade 10.9–12.9 High Tensile Metric Bolts
→ Wherever applicable, we use the strongest hardware to ensure safety and reliability.


🔧 Optional Add-Ons

Lightweight 8620H Billet Steel Ratio Gears (Listing / Pricing to be confirmed)

→ Available in 3.1, 3.3, 3.5, 3.7, 3.9, 4.1, 4.3, 4.6 (You may also use gear sets from other manufacturers if preferred; however, our gears are precision-ground to ensure exceptionally smooth and quiet operation.)

→ Available with ISOTROPIC SUPER FINISHING if required (ISF) for even further performance

Skid Plate (Optional Extra) 

→ Enhanced underside protection for motorsport and off-road use.

Laser-Cut Subframe Fitting Kits (Listing / Pricing to be confirmed)
→ Chassis-specific kits for streamlined and precise installation.

Precision JIG Systems for Subframe Fabrication (Listing / Pricing to be confirmed)
→ Designed in-house to ensure accurate fitment and ease of integration.


🚘 Vehicle Compatibility & JIG Options

We currently support a wide range of platforms, including:

Nissan: S13, S14, S15, R32, R33, R34, A31, C33, C34, C35, Z33, Z34
Toyota: JZA80 Supra, MK5 Supra, Z30 Soarer, JZX90/100/110 Chasers
BMW: E36, E46, E46 M3, E92, F Series
Mazda: MX-5 NA, NB
…and more applications on the way!

👉 All JIGs and fitting kits will be sold separately for easy selection and ordering.


Special Offer – Order Two and Get Free Gears!

If you pre-order two differentials in one transaction, we’ll include a free pair of gears for each differential – with a ratio of your choice.

We’re currently finalizing gear ratio options behind the scenes and will have a full listing available soon. Alternatively, our differentials are fully compatible with gearsets from other well-known manufacturers, giving you total flexibility when it comes to your gearing setup.


📦 Pre-Order Details & Availability

Pictured is our 3D printed prototype used to validate production tolerances and fitment prior to final machining.

Pre-order pricing is strictly limited—available only until we reach the minimum required orders to produce the first batch of 200 units. Once that threshold is met, discounted pricing will be removed.

Estimated Completion: Late 2025
Servicing Interval: Annually (Individual parts can be purchased for servicing)
Warranty: 6 months unconditional
Extended Warranty Program Available – 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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