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starrman30 · 11-30-2014, 02:52 PM

wow what tranny do you have? my 69 feels like its revving up to 5000 rpm when I hit 60MPH. I'm pretty sure they al came with the 4 speed granny low tranny, except the automatic version.

I have never tried to hit 70 MPH

11-30-2014, 02:52 PM	#129
starrman30 Registered User Join Date: Jun 2005 Location: Anchorage, Alaska Posts: 10	Re: 1966 GMC 305 V6 Service wow what tranny do you have? my 69 feels like its revving up to 5000 rpm when I hit 60MPH. I'm pretty sure they al came with the 4 speed granny low tranny, except the automatic version. I have never tried to hit 70 MPH