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Supplied Vehicle Information for ZONF12N
"Although rare, if your vehicle is equipped with both a stock 4"" rear block and a top mounted over load spring, 4 of u-bolt part number UBT4035 may be required.
Dually trucks will require different rear u-bolts.
Vehicles equipped with 2 piece rear driveshaft's may required the carrier bearing to be lowered. If required, order part # ZONF5401.
Front exhaust modification may be required to clear the front driveshaft on gas models.
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