Hitch Receiver size?
#3
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Max. Trailer Tow Package (Regular Cab and SuperCab; restrictions apply; required
for towing over 5,000 lbs.) includes Class IV trailer hitch receiver, 7-pin wiring harness,
upgraded radiator, auxiliary transmission oil cooler, trailer brake controller, upgraded
rear bumper, SelectShift Automatic transmission, and manual telescoping/folding trailer
tow mirrors with manual glass or manual telescoping/folding trailer tow mirrors with
power/heated glass, integrated turn signal indicators and security approach lamps