GPM Racing 20CRMNTI Steel Front and Rear Differential Gear 30/12T Set for Arrma 1/16 Mini Kraton 3S Dsc 4x4 RTR Brushless Speed Truck (MAKM1230FR)
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Handled by us in the UK under the Consumer Rights Act — no sending it overseas.
What our customers say
A selection of recent five-star reviews, as written.
-
★★★★★
Ordered flishrc cobra. Communication was great. Ordered larger batteries but they were the wrong size. Olly shipped the right batteries and gave a refund for the difference I paid. Couldn't ask for more. Thanks for the help with the order.
Robert, 22 September 2026
-
★★★★★
Very helpful when the vehicle I wanted wasn't in stock. Very fast deliver too.
Anna Abbott, 17 September 2026
-
★★★★★
Excellent service speedy delivery and good customer service
GLYN, 10 September 2026
-
★★★★★
Great product and service. I enjoy buying from these guys. Thanks to radio-controllled.co.uk.
Paul Jordan, 3 September 2026
-
★★★★★
Dealt with customer services over an order I accidently placed, they were prompt and dealt with it will, completely refunded within a small window of time, thanks!
Oliver Galustian, 23 July 2026
-
★★★★★
Really good online rc store with some great products and sales on. The owner is very knowledgeable as well.
Simon, 19 July 2026
-
★★★★★
Product delivered promptly and in excellent condition 👍had very helpful and prompt responses from Olly to all my questions, I will definitely be using them again 👍
Mark Clucas, 30 January 2026
-
★★★★★
The customer service and advice were first class!
Steve Avery, 9 September 2025
-
★★★★★
The seller knew I was after one and very kindly informed me when they came back into stock so now have a Flywing Bell 206. Fantastic bit of kit. Well worth the wait.
Pete Goddard, 15 April 2025
-
★★★★★
Great service, car arrived fast and really well packaged. Also, I had a little problem....(which turned out to be me doing it wrong) but someone replied the same evening! Will definitely be buying from them again.
Graham Rousseau, 10 February 2025
Key Specs
- Scale
- 1/16
- Weight
- 31 g
About this product
Heavy-duty 30/12T diff gear kit for Mini Kraton 3S
This RC-scale gear set replaces the factory differential gears ARA-3294+ARA-2672 and is intended for ARRMA Mini Kraton 3S 1/16 models. Components are machined from 20CrMnTi steel and receive a hardened black surface treatment to raise wear resistance under heavy drivetrain loads. The kit uses a spiral cut ring gear paired with larger bevel gears (30T) and 12T pinions, 0.8 module, preserving mesh geometry and gear ratio matching for the stock drivetrain layout.
All supplied gears and pinions are delivered pre-assembled inside the package accessories, simplifying swap-in work during maintenance or upgrade. For longer-term stability it is recommended to apply thread locker on mounting screws and verify gear mesh and bearing seating during reassembly. This part is an RC accessory and is not intended for real vehicle use.
Compatible Models
- ARRMA 1/16 Mini Kraton 3S DSC 4X4 RTR Brushless Speed Truck-ARA2508S
- ARRMA 1/16 Mini Kraton 3S DSC 4X4 RTR Brushless Speed Truck-ARA2508
This hardened 30/12T differential gear set is recommended when replacing worn bevels or upgrading ARRMA Mini Kraton 3S drivelines; always confirm gear mesh and secure fasteners with thread locker before operation.
Does this kit match the stock gear geometry?
Yes. Tooth counts and module are selected to preserve the stock mesh geometry for ARRMA Mini Kraton 3S 1/16 setups.
What manufacturing material is used?
The gears are turned from 20CrMnTi steel and given a hardened black finish to resist wear under torque loads typical of brushless speed trucks.
Are parts pre-assembled to help installation?
Yes. The package accessories include pre-assembled gear sets; installers should still verify bearing seating and mesh alignment during reassembly.
Any advice for first-time installers?
Use a correct feeler for mesh checks, apply medium-strength thread locker to mounting screws, and run the car at low speed initially to confirm smooth operation before full use. Write Product Review Please sign in your account before you can write any review.
Made to order: GPM Racing parts are shipped to us from GPM’s factory, so please allow around 14 days for dispatch.
What our customers say
A selection of recent five-star reviews, as written.
-
★★★★★
Ordered flishrc cobra. Communication was great. Ordered larger batteries but they were the wrong size. Olly shipped the right batteries and gave a refund for the difference I paid. Couldn't ask for more. Thanks for the help with the order.
Robert, 22 September 2026
-
★★★★★
Very helpful when the vehicle I wanted wasn't in stock. Very fast deliver too.
Anna Abbott, 17 September 2026
-
★★★★★
Excellent service speedy delivery and good customer service
GLYN, 10 September 2026
-
★★★★★
Great product and service. I enjoy buying from these guys. Thanks to radio-controllled.co.uk.
Paul Jordan, 3 September 2026
-
★★★★★
Dealt with customer services over an order I accidently placed, they were prompt and dealt with it will, completely refunded within a small window of time, thanks!
Oliver Galustian, 23 July 2026
-
★★★★★
Really good online rc store with some great products and sales on. The owner is very knowledgeable as well.
Simon, 19 July 2026
-
★★★★★
Product delivered promptly and in excellent condition 👍had very helpful and prompt responses from Olly to all my questions, I will definitely be using them again 👍
Mark Clucas, 30 January 2026
-
★★★★★
The customer service and advice were first class!
Steve Avery, 9 September 2025
-
★★★★★
The seller knew I was after one and very kindly informed me when they came back into stock so now have a Flywing Bell 206. Fantastic bit of kit. Well worth the wait.
Pete Goddard, 15 April 2025
-
★★★★★
Great service, car arrived fast and really well packaged. Also, I had a little problem....(which turned out to be me doing it wrong) but someone replied the same evening! Will definitely be buying from them again.
Graham Rousseau, 10 February 2025
