I thought the PCM accepted only factory ratios. Am I wrong in assuming
this? That'd be really cool, because I'd like to switch to 4.10 maybe 4.56
in my 98 once I get it all up and working with the 408.
TonyC
-----Original Message-----
From: Ronald Wong <ron-wong@home.com>
To: dakota-truck@BUFFNET.NET <dakota-truck@BUFFNET.NET>
Date: Sunday, October 28, 2001 5:28 PM
Subject: RE: DML: Re: Re: axle ratio
>That's only true in tire sizes, never in axle ratios. Like you said in a
>previous post, the speed sensor is on the axle.
>
>Ron
>00 PB SLT QC 4X2 5.9 46RE 3.92 LSD
>For modifications see my DML Profile (URL follows)
>http://www.twistedbits.net/WWWProfile/dakota/Kw9pV1EkFeOYY
>
>
>-----Original Message-----
>From: owner-dakota-truck@BUFFNET.NET
>[mailto:owner-dakota-truck@BUFFNET.NET]On Behalf Of TonyC
>Sent: Sunday, October 28, 2001 2:03 PM
>To: dakota-truck@BUFFNET.NET
>Subject: Re: DML: Re: Re: axle ratio
>
>
>I'm saying that switching to a FACTORY available ratio/tire size will not
>necessitate buying any items to correct the speedo. That its as simple as
>having the computer set to the new values. But changing to a NON-FACTORY
>ratio may (Probably) require one to do so.
>TonyC
>
>-----Original Message-----
>From: Andy Levy <andylevy@yahoo.com>
>To: dakota-truck-moderator@bent.twistedbits.net
><dakota-truck-moderator@bent.twistedbits.net>
>Date: Sunday, October 28, 2001 3:17 PM
>Subject: Re: DML: Re: Re: axle ratio
>
>
>On a 1998 or newer (and since we're taking about a 4.7, it's a '00 or
>newer), a change in rear-end ratio does not require areprogram, as the
>speed sensor is on the axle and not the driveshaft. Only tire size changes
>need a reprogram.
>
>TonyC wrote:
>
>> 3.92 is a readily available ratio. The computer can be reset by the
>> dealer to correct the odometer/speedo readings meaning you don't need a
>> speedo black box unless you're running really odd tire sizes.
>>
>> TonyC
>>
>> -----Original Message-----
>> From: kwreimer <kwreimer@email.msn.com>
>> To: dakota-truck@buffnet.net <dakota-truck@buffnet.net>
>> Date: Sunday, October 28, 2001 9:12 AM
>> Subject: DML: Re: axle ratio
>>
>>
>>>Can 3:70 be obtained? if so this may be better, still close to the 3:55
>>>but a little quicker of the line with the 3:70 or 3:90's, the 3:90 will
be
>>>ok i have thought about going to these myself, i have a 2K dak with 3:55
>>>limited slip now. I like the 3:55, but would be nicer to be quicker off
>>>the line. the RPM change should be minor, only around 200-300 RPM More.
>>>----- Original Message -----
>>>From: "DML" <gwbower@hotmail.com>
>>>To: <dakota-truck-moderator@bent.twistedbits.net>
>>>Sent: Saturday, October 27, 2001 9:27 PM
>>>Subject: DML: axle ratio
>>>
>>>
>>>> Anyone drive a 4.7 with a 3.92 axel ratio? If so how is the performance
>> at
>>>> highway speeds. what is rpm at 70mph (or even 80mph if you go that
>>>> fast). gas milage? I am trying to decide what ratio to get with a truck
>>>> I am
>>>going
>>>> to order when my present truck sells.
>>>>
>>>>
>>>>
>>>
>>>
>
>--
>-andy
>andylevy@yahoo.com
>Maintainer, DML FAQ - http://www.dakota-truck.net/faq/
>http://home.twcny.rr.com/andylevy/dakota/
>'99 CC 4x4 318 auto
>
>
>
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