1971 Chevy Pickup rpm problems - The 1947 - Present Chevrolet & GMC Truck Message Board Network

chazdo2 · 08-13-2016, 08:40 PM

I have a 71 Chevy 4x4. It has the old dash. It seems like it revs too high for the speed I am going. Not sure what the gear ratio is. The dash tac has no numbers on it but appears to work. It has inside and outside hash marks on the tac. When I am going around 55 MPH it is at about 4 oclock. You guys who know these trucks inside and out have a guess at what RPM I am running at that angle? If it is too high can I change the gear ratio in the rear end?

08-13-2016, 08:40 PM	#1
chazdo2 Registered User Join Date: Mar 2016 Location: auburn new york Posts: 71	1971 Chevy Pickup rpm problems I have a 71 Chevy 4x4. It has the old dash. It seems like it revs too high for the speed I am going. Not sure what the gear ratio is. The dash tac has no numbers on it but appears to work. It has inside and outside hash marks on the tac. When I am going around 55 MPH it is at about 4 oclock. You guys who know these trucks inside and out have a guess at what RPM I am running at that angle? If it is too high can I change the gear ratio in the rear end?



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