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Does the D2 have an Overdriven 4th gear?

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Old Feb 24, 2014 | 11:41 AM
  #1  
Dane!'s Avatar
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Default Does the D2 have an Overdriven 4th gear?

If so, what is the ratio of the overdrive?


Thanks,
Dane.
 
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Old Feb 24, 2014 | 11:48 AM
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ems12's Avatar
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From the Rave

1st 2.480 : 1
2nd 1.480 : 1
3rd 1.000 : 1
4th 0.728 : 1
Reverse 2.086 : 1

Not sure if that answers your question or not
 
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Old Feb 24, 2014 | 01:22 PM
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Default Discovery 4th gear

[QUOTE=Dane!;448983]If so, what is the ratio of the overdrive?
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No overdrive, as "overdrive" found in nice Rover 3 litre cars from the 1960s, but perhaps an overdriven 4th gear. Ok, bad joke, but I am not a comic anyway.
 
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Old Feb 24, 2014 | 03:50 PM
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So these don't have overdrive? That explains the MPG.
 
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Old Feb 24, 2014 | 04:32 PM
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"So these don't have overdrive? That explains the MPG."
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In part. Also in play is fact that the vehicle has a heavy four sided steel frame, which was begun on the very first Land Rovers (series ones), contributing to overall heavy vehicle weight for size, and other factors working against good gas mileage, but one must remember that when these GM designed all aluminum V8 engines were first used by Rover, they were pretty standard V8s in those days, gasoline was cheap, so gas mileage wasn't the concern that it is today. Time caught up with Rover; that is why the company is now owned by a company in India, sadly. Years ago, a British firm made and sold an overdrive unit for installation in the series Rover manual transmission, where the winch drive shaft would otherwise go.
 
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Old Feb 24, 2014 | 05:41 PM
  #6  
vette427sbc's Avatar
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From: Middletown NJ
Default

Originally Posted by ems12
From the Rave

1st 2.480 : 1
2nd 1.480 : 1
3rd 1.000 : 1
4th 0.728 : 1
Reverse 2.086 : 1

Not sure if that answers your question or not
Unless the transfer case is driving it back down to 1:1, 4th gear is an overdrive
 
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