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LostMy65 · 11-16-2015, 04:31 PM

There's a few rpm calculators out there, but I've always preferred the one LVPhotos shared because it's all there in one chart.

11-16-2015, 04:31 PM	#3
LostMy65 But Found Her 25yrs Later! Join Date: Oct 2010 Location: Oregon City, Oregon Posts: 10,530	Re: Changing gear ratio question There's a few rpm calculators out there, but I've always preferred the one LVPhotos shared because it's all there in one chart. __________________ I lost my 65 - Found it 25 years later: http://67-72chevytrucks.com/vboard/s...d.php?t=426650 66 C20 Service Truck: http://67-72chevytrucks.com/vboard/s...d.php?t=428035