Thread: My 72 gmc build
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Old 08-18-2015, 09:50 AM   #122
1972GMCsierra4x4
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Join Date: Feb 2013
Location: Winchester Kansas
Posts: 145
Re: My 72 gmc build

Hey all, I know it's been awhile. I've been driving the old girl every day for a couple months now and am happy to say things are great. Two weeks ago I took it 2 1/2 hours to college and the only complaint I have is it is LOUD at 80 mph; so loud you consider wearing ear plugs. The tires I have howl like old bias plies that you used to be able to buy at feed stores. Other than that I don't have any complaints
I am wishing now that I had installed 3.73 gears instead of the original 4:10s. Even with the
ranger it still winds up pretty high on the interstate. The next time I buy tires I'm going to a 33x9.50 instead of my 31x10.50s I have now. I did the math and it will be pretty close to a 3.73 rear end. Plus, with a narrower size, it may help increase MPGs a little
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