3.42
Discussion in 'Ask An Owner Operator' started by Abusumeyo, Jul 20, 2012.
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Hardly had any emmision system issues either and they were 2011-2014. And we idled a ton. Never shut em off. I think super low rpm bean counter tunes is the root cause of after treatment issues -
3.73 is the best good take off speed and still will run out of numbers
D.Tibbitt Thanks this. -
ChicagoJohn Thanks this.
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Derailed Thanks this.
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So can sommeon tell me the best way to gain a little more road speed. DD15 with 10 speed OD and 342 rears low pro 22.5 tires.To get 75 MPH I am turning 2100 RPM
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You should be at 1700 -
3.42 ring/pinion
40in tall tire
.73od
2100 = 101mph
The newer 10 speeds are .73 still, correct? Something don't jive.
For them to jive your truck would have to be 4.42s and im positive it doesn't have that ratio.
With 3.91 on 295/75/22.5 im at 1600 at 65 (.73) or 1400 at 65 in the big hole .62 -
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I have 3.55 spicer rears and 10 speed eaton. The truck will run 70mph at 1600 rpm loaded. In the future I would want to replace the 10 with a 13 to keep the engine in optimal rpm range on some pulls.
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