Re: [Chrysler300] Speedometer pinion gear for 300G

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

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.Â 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.Â I'm running 235/75R15 tires and a 2.93 rear axle.Â Any suggestions on the proper gear? I know they come in different colors to differentiate different ratios.

Thanks!

Bob J