Anything less than 1 Ohm is pretty low - try calibrating your meter with a known electronics grade resistor from Radio Shack. Its hard to measure difference between 0.7 and 0.4 Ohms.

Jeff
96 T100 SR5 4WD Ext Cab, Warn Hubs, HD torsion bars, Bilsteins, Camper Shell, TJM bar, factory 31 x 10.5's, Powertrax No-slip rear, Recaro driver's bucket