GPM Racing 20CRMNTI Steel Center Diff Gear Set 53T/19T (M1.0) for Arrma 1/5 Kraton 8S (MAKX1953TS)

Centre differential gear set for ARRMA Kraton

The MAKX1953TS gear set is supplied as a matched 53T centre gear and 19T idler in module 1.0, designed to be a direct replacement for ARRMA Kraton 1/5 centre differential parts. Manufactured from 20CrMnTi steel, the gears offer improved wear resistance under sustained 8S brushless loads while preserving the original tooth profile and module size.

These components are intended for RC drivetrain use only and fit into the vehicle’s centre differential housing. During assembly check bearing clearance and gear mesh. Retaining the stock M1.0 pitch and tooth counts keeps the set compatible with Kraton gearbox geometry and the factory pinion/spur relationships.

Assembly notes: ensure mating surfaces are clean, confirm correct idler location, and set mesh carefully before a short bedding run. The steel material reduces deformation and pitting risk compared with softer alloys, which supports consistent centre diff behaviour in high torque setups.

Compatible Models

• ARRMA 1/5 Kraton 4X4 8S BLX Brushless Speed Monster Truck RTR-ARA110002
• ARRMA 1/5 Outcast 4WD 8S BLX Stunt Truck RTR-ARA5810
• ARRMA 1/5 Kraton 8S EXB 4X4 Roller Brushless Speed Truck-ARA5208
• ARRMA 1/5 Kraton 4X4 8S BLX EXB Brushless Monster Truck RTR-ARA5808V2
• ARRMA 1/5 Outcast 8S EXB 4X4 Roller Brushless Stunt Truck-ARA5210
• ARRMA 1/5 Outcast 4X4 8S BLX EXB Brushless Stunt Truck RTR-ARA5810V2

Use this 20CrMnTi steel gear set when greater durability and consistent centre differential response are required for demanding 8S Kraton applications.

How does this compare to the OEM parts?

The MAKX1953TS gears match the OEM tooth counts and module but are produced from 20CrMnTi steel for enhanced wear resistance versus the stock components ARA310919 and ARA310921.

What checks should I perform after fitting?

After installation, verify gear mesh, inspect bearing seating, and run a brief break-in session to confirm smooth engagement and correct indexing.

Is special tooling required to fit these gears?

No special tooling is required beyond standard workshop tools for differential assembly; ensure you have the correct shims and that shafts are clean for proper bearing fitment.

Will these gears affect drivetrain efficiency?

When meshed correctly, steel gears offer durable engagement with negligible efficiency loss; any increase in drag is typically outweighed by improved longevity under heavy loads.

Can I run these with higher than 8S power?

These gears are rated for demanding 8S brushless use; for higher voltages or extreme setups, evaluate the entire drivetrain and monitor for increased wear or heat.

Do these change gear ratios?

No. The kit maintains the original 53T and 19T tooth counts with M1.0 module, so gear ratios remain consistent with the factory configuration. Write Product Review Please sign in your account before you can write any review. Sign In Close

Made to order: GPM Racing parts are shipped to us from GPM's factory, so please allow around 14 days for dispatch.