GPM Racing Aluminium Front/Rear Gearbox Cover+Upper Arm Stabilizer - 10pcs Set for Tamiya TT02 (TT2012A)
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
- Weight
- 40 g
About this product
CNC engineered gearbox cover and upper arm stabiliser
This TT2012A aluminium upgrade replaces the front and rear gearbox covers and adds upper arm stabilisers for the Tamiya TT-02 range. CNC machined from 6061 T6 aluminium, the components are engineered to improve bearing seating, reduce driveline lash and enhance passive thermal conduction from the gearbox housing.
The kit includes a gearbox cover and one upper arm stabiliser for each end, together with the stainless steel fasteners required for professional installation. Anodised surfaces provide corrosion protection and consistent dimensional accuracy for repeatable fit across the listed TT-02 models.
Packing includes
- Gearbox Cover – 1pcs
- Upper Arm Stabilizer – 1pcs
- Stainless Steel Button Head Screw 3×8 – 2pcs
- Stainless Steel Round Head Screw 3×10 – 6pcs
Original Name / Part No:
A4+A2
Compatible Models
- TAMIYA 1/10 TT-02 11053610
- TT-02T
Use the TT2012A when you require a precision, CNC-machined replacement that tightens bearing clearances and provides improved heat transfer for gearbox stability; this set is aimed at hobbyists and tuners seeking repeatable, durable upgrades for TT-02 drivetrains.
What tolerances are targeted by this upgrade?
The TT2012A components are machined to tighter bearing seat tolerances than the injection moulded originals to reduce lateral play and improve gear meshing stability.
Are the fasteners stainless and corrosion resistant?
Yes, the supplied fasteners are stainless steel and selected to provide long term corrosion resistance when paired with the anodised aluminium components.
Does the aluminium cover change gearbox service intervals?
Aluminium improves heat dissipation which can help component longevity, but service intervals should still follow normal maintenance based on usage and load.
Is any machining required for fitment?
No additional machining is required for listed compatible models; the parts are supplied ready to install using the included stainless fasteners. 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
