Petroworks GRS II Gears makes your Transfer Case 115% lower than stock in low-range and 18% lower than stock in high-range.
With stock ring & pinion gears (3.72:1), the G.R.S. II (Gear Reduction System) gives you a final drive ratio of 66:1.
These gears were developed specifically to recover lost power when adding 31" tires.
(x1) Set of new GRS II 4.89 gears
(x2) Countershaft Needle Bearings
(x1) Countershaft O Ring
(x2) Large Seals
(x1) Small Seal
(x1) Shifter Sheet (Petroworks Polyurethane Shifter Sheet)
(x2) Thrust washers
(x1) Large Case Gasket
(x1) Small Case Gasket
(x1) Packet of Various size Shims
(x3) Flange Nuts
(x3) 62/28 Bearings
(x1) 6306N Bearing
(x1) 63/22 Bearings