Re: [ISTA] NP205 X-Fer Case..Driveline Gurus..

["Hummer Guy" <atiprogmc@hotmail.com>]

Hey,
I had a conversation with a list member in your vicinity recently about this 
and I stated that this little impasse would eventually hold up the 
development of the NP-205 for use in a SyTy application.

You have a couple of options.

1.) Find an NP-205 that was originally suited for a Dodge or a F*rd 
application.  They almost always have their input shaft for the front 
differential on the driver's side just like the SyTy.  Then you will be 
trying to mate a GM tranny to a foreign transfer case

2.) Find a "divorced" transfer case with a jack-shaft style input shaft from 
any manufacturer as long as the front output shaft for the front 
differential is on the driver's side.  The jack-shaft is a little driveshaft 
that connects in between the tranny and the transfer case and allows 
***ANY*** type of tranny to be output to the transfer case by merely 
altering the style of the jack-shaft to match.  The problem with this is the 
added length and decreased length of the individual driveshafts.....the 
front one will be really long and the rear one will be really short.  This 
setup is conducive to better rear biased weight transfer however.

3.) Use the GM style NP-205 with the output on the wrong side and turn the 
front differential to match it.  Then you will need to find someone to 
custom make you a set of reverse cut ring/pinion gears that will correct the 
condition you created by turning the front differential 180 degrees.  Try 
this experiment:  spin the input yoke of a differential, now turn the whole 
differential assembly 180 degrees while still spinning the input yoke in the 
same direction --> notice how the differential now makes the axles spin 
opposite to what it once did in the original situation.  Reverse cut gears 
will make everything back to normal.

In any case, custom driveshafts will have to be made which isn't a big deal 
at all.
It's all a matter of what you have to work with.

Hope this helps someone....
Later for now,
Matt...."Driveline Guru"??
atiprogmc@hotmail.com

Can anyone in Brookline beat me?


>From: Ryan Raketich <rraketic@secapl.com>
>Reply-To: Ryan Raketich <rraketic@secapl.com>
>To: syty@syty.org
>Subject: [ISTA] NP205 X-Fer Case..Driveline Gurus..
>Date: Thu, 1 Jun 2000 11:23:20 -0500 (CDT)
>
>Ok ready for the million dollar question...has anyone actually used the
>NP205 transfer case?? What transmission was this with...the reason I ask
>is because I am currently in the process of switching over to a 4L80e
>transmission and a NP205 transfer case...what's the problem you
>ask...trans guy is stating that the front driveshaft goes on the passenger
>side and not the drivers side like our trucks :-( CAN I CATCH A BREAK
>PLEASE!!!! Okay back to reality...worse comes to worse I will have to have
>the front differential moved over to the passenger side...oh yeah more
>customization :-o anyways enlighten me please....
>
>Ryan
>'92 Ty No Heart No Legs....:-(
>

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