Re: [Chrysler300] Speedometer pinion gear for 300G

["'Fern Rivard' crc@xxxxxxxxxxxx [Chrysler300]" <Chrysler300-noreply@xxxxxxxxxxxxxxx>]

Michael, does your speedometer show the distance travelled correctly against a marked mile? If that is correct, then you’re correct that your speedo needs calibration.

Fern

 

 

From: mailto:Chrysler300-noreply@xxxxxxxxxxxxxxx

Sent: Saturday, July 18, 2015 3:20 AM

To: chrysler300@xxxxxxxxxxxxxxx

Subject: Re: [Chrysler300] Speedometer pinion gear for 300G

 

 

My "F" has the proper gear for the rear axle ratio of the car, but reads 12 mph slow at highway speeds. It has been off that far since I obtained the car in 1979. I always attributed it to the speedometer being out of calibration........

Mike

----- Original Message -----

From: mailto:jholst@xxxxxxxxx [Chrysler300]

To: John Nowosacki

Cc: chrysler300@xxxxxxxxxxxxxxx

Sent: Friday, July 17, 2015 1:51 PM

Subject: Re: [Chrysler300] Speedometer pinion gear for 300G

 

 

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] <mailto: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.

Â

Thanks!

Â

Bob J

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Posted by: "Fern Rivard" <crc@xxxxxxxxxxxx>

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