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Chevy Trailblazer Gear Ratios

3 messages,  Last post on Oct 22, 2009 at 4:53 AM

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What is this discussion about? Chevrolet TrailBlazer, Chevrolet TrailBlazer EXT, Fuel Efficiency (MPG), SUV

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#2 of 3 Re: Chevy Trailblazer Gear Ratio's [skyguy1] by burdawg Oct 06, 2008 (6:03 am)
Replying to: skyguy1 (Oct 05, 2008 10:30 pm) In general, the 3.42 should provide the best mileage since the engine turns less per wheel revolution. That's true under most conditions, but if you have a lead foot it won't make that much difference, and if you do all stop and go driving it won't help that much either. So I guess your answer is it's both, gear ratio and driving style for a given class with similar weight and power specifications. Of course it's foolish to compare a Cadillac Escalade with a Honda Pilot for example. In the Trailblazer the 3.73 is the middle of the road gearing for the best overall performance and economy. If your going to do a lot of heavy towing the 4.10 would be best. Likewise, if your use is mostly highway without a lot of stop and go or towing, then the 3.42 will give you good economy. I don't believe there's any "standard" for gearing in the Trailblazer.
#3 of 3 Re: Chevy Trailblazer Gear Ratio's [skyguy1] by ss06 Oct 22, 2009 (4:53 am)
Replying to: skyguy1 (Oct 05, 2008 10:30 pm) the 4:10 rear is for performance that why it comes on the ss blazer the 3:42rear will give you the best millage but i like the 3:73 rear. and you no the epa is a bunch of crap when the did a road test i think with road and track on a actual road the 6 cylinder got a little over 16 and the 400 hp ss traiblazergot 15 i own the ss and love even at 80 it will go faster then you count you have to cout bt 5 to keep up

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