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Dual Range Question


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8 replies to this topic

#1 Jibs

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Posted 12 August 2004 - 09:11 AM

I was looking at the post in the marketplace about the dual range in an 81 Brat. Is the gear ratio different than in other Brats? I got the impression that the dual range from that year brat (81) seemed to be really good. Any help would be appreciated.

#2 GLCraig

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Posted 12 August 2004 - 09:14 AM

It probably has the same ratios as the rest of the 81/82 DR 4 speeds. Which have a taller 3rd and 4th then the 83+ DR 4speeds

#3 Guest_taprackready_*

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Posted 12 August 2004 - 10:47 AM

It probably has the same ratios as the rest of the 81/82 DR 4 speeds. Which have a taller 3rd and 4th then the 83+ DR 4speeds


If it had a taller 4th gear then that would make it an overdrive transmission.

Bill

#4 ezapar

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Posted 12 August 2004 - 10:55 AM

81-82 dual ranges have the same gearing. The change came in 83. The fourth gear is longer 83+, I'm not too sure about any difference in 3rd. I've had several of both to compare.


If it had a taller 4th gear then that would make it an overdrive transmission.


:lol:

#5 GeneralDisorder

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Posted 12 August 2004 - 10:56 AM

Yeah - the 3rd and 4th gears in the 81/82 are shorter. Good for a lifted rig, since the big tires don't like high gearing. Otherwise they just get crappy gas mileage on a stock setup.

GD

#6 Guest_taprackready_*

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Posted 12 August 2004 - 10:57 AM

Yeah - the 3rd and 4th gears in the 81/82 are shorter. Good for a lifted rig, since the big tires don't like high gearing. Otherwise they just get crappy gas mileage on a stock setup.

GD


So fourth gear is not 1:1 ratio?

Bill

#7 VaporTrail

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Posted 12 August 2004 - 11:03 AM

here is the list of gear ratios from the 82 FSM...

http://www.ultimates...ical/gears.html

#8 GeneralDisorder

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Posted 12 August 2004 - 11:06 AM

Actually - it's *over* 1:1, so 4th IS overdrive. The ratio of the 81/82 4th gear is like .942, where the ratio of the 83+ 4th is like .885.....

3rd gear is something like 1.344, and 1.266 respectively.

Look at his chart ^ it's better than my memory :-p

What I don't get about that chart, is it seems like 82 4WD wagon's didn't exist..... which they did.... for sure. Heh. Weird

GD

#9 VaporTrail

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Posted 12 August 2004 - 11:40 AM

I have a more complete list at home. this is what I found with some searching.....

http://www.ultimates.../mick/gears.htm




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