GPM KG1200S/G1 is made for THUNDER TIGER K-ROCK MT4 Car Kit Upgrade
Handbook number: PD1895
This item includes :
Bevel Gear-2pcs
Steel Pin 2.5x11-2pcs
Product major function & use:
Improve the ability transfer in diff case
The product is upgraded to harden steel #45 causeing this to be more powerful to work with.