I just put in 4.56 gears but I am only running 37" tires. The shop that did the install did not recommend anything bigger than 4.56. He said the pinion gear get very small on 4.88 or bigger, and you will have problems with speed sensors and if you tow anything behind the H2.
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03 H2 Sunset Orange Magna Charger w headers & cold air intake, 4\" Rancho lift, XTC Light Bars Front & Rear, 4.56 gears with Eaton Front Locker
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