Verizon cell phones can check too. Seems to be pretty accurate in my area.
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01 ext. cab, shrt bed, 6spd w/ BD short shift kit, edge juice w/hot, bd 155 sticks, sb con fe clutch, 5 inch Diamond Eye, BD aux lift pump, Smarty, II silver 62, Haisley Machine O-ring head gasket, Arp Studs, all done by me!