GPM Racing 4140 Carbon Steel +7075 Alloy Front & Rear Complete Differential for Traxxas 1/5 X-MAXX (TXM1211)
We are the importer of record — the price you see is the price you pay.
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
- 1/5
- Weight
- 414 g
About this product
GPM TXM1211 Differential Assembly Technical Overview for TRAXXAS X-MAXX 8S
The GPM TXM1211 supplies a full front and rear differential gear set engineered to reinforce the TRAXXAS X-MAXX 8S drivetrain. Key materials are 4140 medium carbon steel and 7075 alloy, chosen to resist wear and provide predictable load handling across the diffs during high torque applications.
Packing includes
- Differential Gear set – 12pcs
- Stainless Steel Washer 16x22x0.1 – 8pcs
- Diff case – 2pcs
- Grade 12.9 black Cap Head Screw 3×10 – 8pcs
- Grade 12.9 black Round Head Screw 3×10 – 8pcs
- Rubber sealing ring 17×1 – 2pcs
- Differential gear spacers – 8pcs
- Diff Case Gasket – 2pcs
- Spider gear shafts – 4pcs
- Diff Bevel Gear 32T – 2pcs
- Front + Rear Pinion Gear 10T – 2pcs
- Bearing 15x24x5 – 2pcs
- Black gasket – 2pcs
Original Name / Part No:
- 7880+7790+7881+7791
Compatible Models
- TRAXXAS-1/5 X-MAXX 8S MONSTER TRUCK-77086-4
- TRAXXAS-1/5 X-MAXX 6S MONSTER TRUCK-77076-4
- TRAXXAS 1/6 4WD XRT 8S-78086-4
- TRAXXAS 1/5 X-MAXX Ultimate 8S-77097-4
- TRAXXAS 1/5 X-MAXX 8S MONSTER TRUCK-77096-4
- TRAXXAS 1/6 XRT Ultimate 8S 78097-4
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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
