Fw: [Chrysler300] Rear End 300F-fUN WITH NUMBERS

["The Richardson Family" <therichardsonfamily@xxxxxxxxxxx>]

The math seems to make sense but, that's assuming the final drive through the transmission is a 1:1 ratio.  I don't think that's right, is it?

On a limited slip - turn the drive shaft 1 complete rotation and count the revolutions of the wheel - that should give you the correct rear end ratio - or is it the other way around?  I don't recall exactly but, I do remember getting 3.55:1 on my "Letter L", which is the pumpkin that was installed by my Stepfather.  That's as much as I can contribute to confuse things.....

Dan Richardson
300L Family Heirloom


----- Original Message ----- 
From: Rich Barber 
To: 'jean-yves chouinard' ; chrysler300@xxxxxxxxxxxxxxx ; 'Thomas Cox' 
Sent: Sunday, August 28, 2011 1:31 AM
Subject: RE: [Chrysler300] Rear End 300F-fUN WITH NUMBERS


  
I've spotted a reference for the 9.00 X 14 tire on the 300F as having an OD
of 28.68". 

Assuming no slippage:

MPH=(3,000*Pi*28.68*60)/(3.23*12*5280)=79.2 MPH. 

RPM @ 60 mph=2,273 RPM

Axle Ratio to give 60 MPH @ 3,000 RPM: 4.26 One reference says the
available ratios ranged from 2.73 to 3.91.

From: Chrysler300@xxxxxxxxxxxxxxx [mailto:Chrysler300@xxxxxxxxxxxxxxx] On
Behalf Of jean-yves chouinard
Sent: Saturday, August 27, 2011 4:27 PM
To: chrysler300@xxxxxxxxxxxxxxx; Thomas Cox
Subject: Re: [Chrysler300] Rear End 300F

I could be wrong here, but isn't the 300F rear end ratio 3:31 to 1 ?
And the 300G ratio 3:23 to 1?? 
I know , not a huge difference...and I agree with Don , 3000 rpm seems high
at just 60mph...
Jean-Yves

----- Original Message ----- 
From: Thomas Cox 
To: chrysler300@xxxxxxxxxxxxxxx <mailto:chrysler300%40yahoogroups.com> 
Sent: Thursday, August 25, 2011 8:48 PM
Subject: [Chrysler300] Rear End 300F

At 60 mph, I am running about 3,000 rpm. Is this to be expected with a 3.23
rear 
end? I wonder if I have the correct "chunk" in the F rear end.

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