GPM Racing 20CRMO Steel Diff Gear Set for 29mm Diff Case for Arrma 1/8 Kraton 6S EXB V6 (MKV61200S)

Precision engineered 20CrMo differential gears

This GPM MKV61200S gear set is manufactured from 20CrMo steel and engineered for strength and repeatable performance in high load situations. These components are intended for hobbyists who want durable internals that cope with aggressive driving and frequent impacts.

Accurate tooth profiles for reliable mesh

Each gear is finished to tight tolerances to promote consistent contact patterns and reduce premature wear. The included steel cross shafts and mating gears work together to maintain optimum drive engagement across a range of speeds.

29mm case form factor and build options

The set is specified for 29mm differential cases and supports both limited slip and open differential configurations. It is suitable for replacement of worn parts or as a straightforward performance upgrade for heavy use.

Compatible Models

• ARRMA 1/8 KRATON 6S EXB 4X4 RTR BRUSHLESS SPEED TRUCK – ARA8708V6
• ARRMA 1/8 OUTCAST 6S BLX 4WD EXTREME BASH STUNT TRUCK RTR – ARA8710
• ARRMA 1/8 KRATON 4X4 EXTREME BASH ROLLER SPEED MONSTER TRUCK – ARA106053
• ARRMA 1/7 MOJAVE 4WD EXTREME BASH ROLLER DESERT TRUCK (EXB) – ARA7204
• ARRMA 1/7 BIG ROCK 6S 4X4 BLX MONSTER TRUCK RTR – ARA7612
• ARRMA 1/8 KRATON 6S V6 4X4 BLX BRUSHLESS SPEED MONSTER TRUCK RTR – ARA8608V6
• ARRMA 1/8 KRATON 6S EXB AVC 4X4 RTR BRUSHLESS SPEED TRUCK – ARA8708T1
• ARRMA 1/8 NOTORIOUS 6S V6 4X4 BLX BRUSHLESS STUNT TRUCK RTR – ARA8611V6
• ARRMA 1/8 TALION 6S BLX 4WD EXTREME BASH SPEED TRUGGY RTR – ARA8707

What heat treatment does the steel receive?

Material selection and heat treatment are optimised for wear resistance and toughness to handle torque spikes typical of 6S setups.

Can this kit be used in performance tuning builds?

Yes, the GPM MKV61200S is suitable for builds where stronger internal gears are required to match higher power systems and aggressive driving styles.

Is additional break in required?

Run-in at moderate speed with proper lubrication is recommended to settle gear contact patterns before high stress use. 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.