Birty Dastards Jeep Club

Tech Forum => Workshop => Topic started by: Asylum on January 13, 2007, 12:31:15 AM

Title: Speedo Adjustment Gear
Post by: Asylum on January 13, 2007, 12:31:15 AM

I know this is a dumb question but what is the actual name of the gear required to give a correct speedo/milage reading after a diff regear?

Been searching for ages with no luck. Didnt know if its because American's call it something specific I dont know about?

Cheers all

Clayt
 

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Post by: greggmo on January 13, 2007, 12:33:39 AM

what size tires dood?

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Post by: Asylum on January 13, 2007, 12:42:51 AM

Its for my everyday (Shiny) TJ

I put 3.73 R&P's front and rear in because one of my LSD plates broke up and got chewed, doing a fair amount of damage to the R&P

Am runiing 31's BFG's and have gone from 3.07 to 3.73

 

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Post by: Asylum on January 13, 2007, 12:48:15 AM

Found it.

See am going stupid.

(http://http://i94.photobucket.com/albums/l115/Asylum76/Speedo.jpg)

 8)

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Post by: greggmo on January 13, 2007, 01:00:16 AM

if you speak to light house the will calculate it for ya and supply the gear. i just did mandas after the re-gear. gone from a 30 tooth to a 34 and now at thirty on the speedo it is roughtly doin 28 mph wich means your are well safe.

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Post by: Asylum on January 13, 2007, 01:11:06 AM

Thats great, cheers mate  8)

What do the numbers on the actual speedo sensor represent then?

I found this guide if anybody else is interested:

(http://http://i94.photobucket.com/albums/l115/Asylum76/Speedgearratiotiresizcalc.jpg)

 

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Post by: Asylum on January 13, 2007, 01:16:55 AM

I see I get it now, its representative of the speedo pinion gear teeth, so when changing the gear I have to make sure I turn the speedo censor to reflect the teeth range I am using.  8)