e4od \c6 gear ratios

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Jan 26, 2008 | 05:42 PM

mike86f350

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e4od \c6 gear ratios

does anyone know the gear ratios for both the c6 and e4od diesel trans thanks mike

Jan 26, 2008 | 06:11 PM

Dave Sponaugle

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From: Nutter Fort, WV

C 6
1st - 2.46
2nd - 1.46
3rd - 1

E4OD
1st - 2.71
2nd - 1.54
3rd - 1
OD - .71

Jan 26, 2008 | 11:29 PM

mike86f350

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thanks dave

Jan 26, 2008 | 11:44 PM

turboman24

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Hey DAve does the 2.46:1 and 1.46:1 and 1:1 is that the ratio of engine revolutions to wheel revolutions considering one has stock tires and a 4:10 rearend

Adam

Jan 27, 2008 | 01:37 AM

Dave Sponaugle

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From: Nutter Fort, WV

That is the ratio of the crankshaft RPM to the drive shaft RPM.

The axle ratio divides the drive shaft RPM by the axle ratio to determine the axle RPM.

Engine RPM 2000
2.46 first gear
Driveshaft RPM 813
Axle ratio 4.10
Axle RPM 198.29

235/85-16 tires 31.72" diameter

31.72*3.1415=99.648" travel per revolution of the tire
99.648/12=8.304 feet per revolution

5280/8.304=635.838 revolutions of the tire per mile

198.29/635.838=.311

60*.311=18.66 MPH at 2000 RPM in first gear if there was no loss in the torque converter and I did not round off the numbers in my calculations.