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Terminology: Tall/ short gears vs. Low/ high gearing #5407025 04/18/20 02:12 PM
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dlundblad Offline OP
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What is the correct way reference this? Is it personal preference?

I have a racing video game that allows you to change the “short/ tall” gearing among other things. I personally find it annoying.. the gears aren’t short. I prefer the terms high and low.

What’s the BITOG consensus?


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Re: Terminology: Tall/ short gears vs. Low/ high gearing [Re: dlundblad] #5407035 04/18/20 02:26 PM
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Tall = high = 2.56 rear gear

Short = low = (deep) = 4.56



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Re: Terminology: Tall/ short gears vs. Low/ high gearing [Re: dlundblad] #5407051 04/18/20 02:49 PM
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A high ratio is a low gear. 4.56:1 higher rpms towing

A low ratio is a high gear. 2.76:1 lower rpms fuel economy.

Last edited by spasm3; 04/18/20 02:50 PM.

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Re: Terminology: Tall/ short gears vs. Low/ high gearing [Re: spasm3] #5407055 04/18/20 02:55 PM
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4WD Online Confused
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This is how I have always heard it

8A9C931B-BCCF-46AC-9B54-258B53E87056.png
Re: Terminology: Tall/ short gears vs. Low/ high gearing [Re: 4WD] #5407137 04/18/20 04:13 PM
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High gears as in high speed or AKA tall gear.

Low gears as in slow speed or AKA short gear. Let say If you drive your 67 Camaro with a 4 speed on the street with 5:13 butt gears, you will be doing a lot of shifting mumbling that 1st gear was sure a short gear. drive


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Re: Terminology: Tall/ short gears vs. Low/ high gearing [Re: dlundblad] #5407214 04/18/20 06:24 PM
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dlundblad Offline OP
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Sorry guys. Should’ve been more clear.

I’m well aware of the differences. Just curious about how it should be specified.


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Re: Terminology: Tall/ short gears vs. Low/ high gearing [Re: dlundblad] #5407225 04/18/20 06:49 PM
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Think lots of folks have migrated to “ordered it with a three seventy three rear for towing” …

This guy is always coaching folks on his radio show to get the right gear set:

https://www.carprousa.com/Picking-The-Right-Axle-Ratio-For-Your-Pickup/a/507

Re: Terminology: Tall/ short gears vs. Low/ high gearing [Re: dlundblad] #5407233 04/18/20 07:03 PM
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hpb Offline
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Yeah, it's just personal preference. The various terms for it are interchangeable, so there's not really a right or wrong.


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Re: Terminology: Tall/ short gears vs. Low/ high gearing [Re: dlundblad] #5407282 04/18/20 08:20 PM
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Depends on who you're hanging with. The circle track guys both dirt and pavement BITD talked about how deep a gear they were running. The offroad and crawler guys I've been around talk about low gears. Truck guys who tow complain about how tall the gearing is and wish for rear end gears in the 4s.



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Re: Terminology: Tall/ short gears vs. Low/ high gearing [Re: dlundblad] #5407310 04/18/20 09:00 PM
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FlyNavyP3 Online Content
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Differential ratios are confusing. It helps if you remember that high vs low gears is because the speed reference is the output shaft speed (axle shaft) versus the input shaft speed (pinion/drive shaft).

Thus a high (speed) gear is a 2.76 where a low gear would be a 4.56. High versus low for gear radios is the inverse of the numerical difference between 2 gear ratios because it's all about the output speed.


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Re: Terminology: Tall/ short gears vs. Low/ high gearing [Re: dlundblad] #5407392 04/18/20 11:09 PM
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Those are just arbitrary conventional subjective terms, that could just as easily be defined the opposite ways. Not a problem, as long as speaker and listener both understand the conventions. Distance traveled per engine revolution would be less ambiguous.

Final-drive ratio doesn't mean much nowadays without knowing the transmission ratio (and any other applicable ratios) that's in series with it. It used to make sense when the top transmission "gear" was generally 1:1.

Last edited by CR94; 04/18/20 11:13 PM.

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Re: Terminology: Tall/ short gears vs. Low/ high gearing [Re: Hirev] #5407427 04/19/20 01:22 AM
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Originally Posted by Hirev
High gears as in high speed or AKA tall gear.

Low gears as in slow speed or AKA short gear. Let say If you drive your 67 Camaro with a 4 speed on the street with 5:13 butt gears, you will be doing a lot of shifting mumbling that 1st gear was sure a short gear. drive


5:13 gears on street...... 1st gear? "We don't need no stinkin' 1st gear" 2nd>>>3rd>>>4th. crzy

Last edited by oldhp; 04/19/20 01:22 AM.

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Re: Terminology: Tall/ short gears vs. Low/ high gearing [Re: oldhp] #5407429 04/19/20 01:52 AM
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Originally Posted by oldhp
Originally Posted by Hirev
High gears as in high speed or AKA tall gear.

Low gears as in slow speed or AKA short gear. Let say If you drive your 67 Camaro with a 4 speed on the street with 5:13 butt gears, you will be doing a lot of shifting mumbling that 1st gear was sure a short gear. drive


5:13 gears on street...... 1st gear? "We don't need no stinkin' 1st gear" 2nd>>>3rd>>>4th. crzy


According to the gear ratio calculator I found and 20 minutes of research on ‘67 Camaro’s, assuming 245 70r15 tires, Muncie M21 trans ratios, a 5500rpm redline, and a 5.13 axle, your top speed would be 85mph and first gear tops out at 39mph crzy


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Re: Terminology: Tall/ short gears vs. Low/ high gearing [Re: FlyNavyP3] #5407440 04/19/20 03:29 AM
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True … but for many years I’ve just talked in ratio numbers as you would when shopping an LT or SUV.

Of course 6 speed to 10 speed transmissions and CAFE have tweaked the rear end offerings a bit too.

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