JL/JK Front M180/Dana 30 4.10 Ratio

 JK Dana 44 Rear 4.56 Ratio Rubicon

Pro Active Gears 2-Cut process is the same process used by OE gear manufacturers, which insures the highest level of Quality and Performance. This process, when used in conjunction with quality materials and precision heat treating, makes for an easy-to-set-up, quieter operation for Ring & Pinions, which can be used in Cars, Vans, and SUV’s. There are 2 ways to manufacture Ring & Pinions. The rst method, which is called “5-Cut”, has been used since the 1920’s. The second method, known as “2 Cut” or known to some as “Phoenix Cut”, was developed in the late 1990’s to make gears that run quieter than the traditional “5 Cut” gear sets. Today, all Original Equipment Manufacturers (OEM) are using the 2-Cut process to produce most of the Ring & Pinions for their vehicles. CHA Industries now offers this same advanced technology for the aftermarket!

• Strength and Durability
• Quiet Operation
• Easier Set-Up than the Standard, Aftermarket 5-Cut Gears