Forum Discussion
Need-A-Vacation
Jul 06, 2014Explorer
What cab style is your GMC, reg, extended, or crew?
What rear end gear do you have, 4.10's? Glove box code will be GT5 for 4.10's, GT4 for 3.73's.
What rear end gear do you have, 4.10's? Glove box code will be GT5 for 4.10's, GT4 for 3.73's.
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