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75chev4x4 · 06-26-2012, 08:07 PM

Nice truck. Look on your transfer case shifter knob if you see low lock, low,n.high and high lock you got the 203 case. The 3/4 tons with the 400 small block must have come with the turbo 400 because of the extra torque(thinking to my self).

06-26-2012, 08:07 PM	#3
75chev4x4 Registered User Join Date: May 2012 Location: Estacada, Oregon Posts: 254	Re: 1976 K20 Silverado Nice truck. Look on your transfer case shifter knob if you see low lock, low,n.high and high lock you got the 203 case. The 3/4 tons with the 400 small block must have come with the turbo 400 because of the extra torque(thinking to my self).