Re: [Chrysler300] Speedometer pinion gear for 300G

["MARK HOPKINS m.hopkins@xxxxxxx [Chrysler300]" <Chrysler300-noreply@xxxxxxxxxxxxxxx>]

So that's how you know you were doing 106 mph!!

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From: "'Bob Jasinski' rpjasin@xxxxxxxxxxx [Chrysler300]" <Chrysler300-noreply@xxxxxxxxxxxxxxx>
To: chrysler300@xxxxxxxxxxxxxxx
Sent: Friday, July 17, 2015 12:42:59 PM
Subject: RE: [Chrysler300] Speedometer pinion gear for 300G

 

I appreciate the feedback.  I think the best approach is for me to first identify what is in there now, and then find the next higher pinion size, 1-2 tooth higher, and try that.  I have two electronic speed readout signs that I regularly cruise by to use as a reference.

 

Bob J

 

From: Chrysler300@xxxxxxxxxxxxxxx [mailto:Chrysler300@xxxxxxxxxxxxxxx] On Behalf Of john begian r2gthawk@xxxxxxxxx [Chrysler300]
Sent: Friday, July 17, 2015 11:23 AM
To: John Holst; John Nowosacki
Cc: chrysler300@xxxxxxxxxxxxxxx
Subject: Re: [Chrysler300] Speedometer pinion gear for 300G

 

 

I run 225/75-15 tires, with a 3.23 ratio.  The standard 18 tooth red gear had the speedo reading high, I was actually going 55 and speedo showed 62.  Put in the black, 19 tooth gear and all is well, I only show 2mph higher than actual now.  Good luck finding these gears, CI torqueflight specific and they are scarce.

 

John Begian

 

 

On Friday, July 17, 2015 1:49 PM, "John Holst jholst@xxxxxxxxx [Chrysler300]" <Chrysler300-noreply@xxxxxxxxxxxxxxx> wrote:

 

 

As a check of the speedometer I have used a portable GPS readout (hand held). My RAM Charger is on it's third speedometer and reads about 10 mph slow at 55. I'm sure that somewhere I got the wrong cable or gear or something, but for pushing snow it works. John Holst ( i have a sign on the dash that warns people not extend arms outside the window at speeds above 120 mph)


At 12:14 PM 7/17/2015, you wrote:

 

What does it read when you're doing 120? ;-)

On Fri, Jul 17, 2015 at 12:57 PM, 'Bob Jasinski' rpjasin@xxxxxxxxxxx [Chrysler300] < Chrysler300-noreply@xxxxxxxxxxxxxxx> wrote:

 

I'm trying to determine the proper speedometer pinion gear for my 300G.  My speedo reads lower than it should and I'd like to see if I can improve its accuracy, at 40 mph I'm actually doing about 45.  I'm running 235/75R15 tires and a 2.93 rear axle.  Any suggestions on the proper gear? I know they come in different colors to differentiate different ratios.

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Thanks!

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Bob J

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Posted by: MARK HOPKINS <m.hopkins@xxxxxxx>

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