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Discussion Starter #1
Yeah Yeah...isnt this how it is suppose to start for a Newbie. I did the search..http://www.pirate4x4.com/ubb/smilies/smile.gif..I would like to confirm. the dana 300 is the same, with the same strength whether it is the long or short style tail shaft. Gears,bearings,tailshaft diameter etc
 

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Fawking Newbie! <IMG SRC="smilies/rolleyes.gif" border="0"> <IMG SRC="smilies/rolleyes.gif" border="0">

LOL! Couldn't resist Mike!

Good question though, we need to figure that out before either one of us runs that one.

Another question, are the short ouput shaft models worth more than the longer ones (or a least to folks with rear driveline length issues)?

Ed
 

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Discussion Starter #3
Man Rock Taxi
since you and I are doing the swap I was hoping for an answer form someone else. maybe Cutter will help us.... <IMG SRC="smilies/smile.gif" border="0">
 

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the strength difference would be in the splines that are cut into the long shaft.. vs the short shaft.. the short shaft has a collar for the speedo gear..
but i would consider the long shaft.. since all the upgrades are for it.. 4:1 kit.. hd output shaft.. none of those will work on the short shaft.. as of yet..
short shafts are only found in 1980 jeep cj's
 

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Originally posted by elusiv:
<STRONG>short shafts are only found in 1980 jeep cj's</STRONG>

And some 81's

But I agree, the upgrades available for the long shaft are far more important that the little bit saved in driveshaft length.
 

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Discussion Starter #6
Another question to add ? and more info. can I convert the long shaft and shaft housing from one unit to the other. also I am installing a Klune-V. I have moved the rear axle back 6 inches but at full droop with both wheels u-joint could bind. 1 inch could make a difference....also there is no cost invlolved a friend and i will just swap Thanks
 

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The tail housings have a different bolt pattern, this is why the 32 spline AA kit wont work in the short case. Id recomend goin with the long shaft as well. Even if you dont upgrade, spare or replacment long output shafts are a lot easier to come by than the shorter ones. IMO, there is no major strength difference between the two different shafts.
 

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I don't believe that a Tera-Low gear set won't work on a 'shortie' since the major differences are outside the main case ...
The rear output retainer bolt patten is different, the ID of the rear output shaft's (inner) bearing cone is different, the speedo gear set up is different, and the bearing retainer is shorter.
Everything else is the same.
Who knows for sure a Tera-Low won't work?
Is that something from TeraFlex?
The only difference in a good rebuild kit is the addition of an extra rear output inner cone bearing.
The option of going to the stronger AA rear shaft upgrade if needed is the only reason I didn't install the 'shortie' sitting on my bench. I didn't want the risk of needing another set of drivelines made ...
<IMG SRC="smilies/emb.gif" border="0">
P.S. It is easy to adapt a shortie retainer to a later case as the shortie has a symetrical circle bolt pattern and all that would be needed is to drill a new hole.
The later retainers had to go "Texas" with one bolt going outboard to accomidate the newer 'dial' style speedo gear assy.
So if you wanted to adapt a 'shortie' case to accept a long shaft and retainer I would be a good idea to add by welding (or JB Weld) a little meat for the outboard seat that would be around a new bolt hole outside the circular 'shortie' pattern.

[ 10-21-2001: Message edited by: Jaffer ]
 

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jaffer,, actually.. i think the terra gears will work fine.. jeepgod was at my house and posted that bunk under my name....
 

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Is there anyway to visually see if a D300 is a short shaft or long shaft?

I just bought a 5, and the drivetrain has been swapped in. (Someone before me). I'm 99.9% sure that it has a 300, but how would I be able to get underneath it and tell if it's short or long? (Seeing as that I don't have a long shaft D300 laying around. <IMG SRC="smilies/thefinger.gif" border="0"> )

Thanks
 

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Discussion Starter #13
On the short from the housing to the cover or beginning of the yoke it is 3 inches then 5 inches from the housing to tabs on the yoke. it is 4 and 6 or 6 1/4 respectively. also look above one has a round pattern the other texas state pattern

Mike
 

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Easiest way to tell is the 'shortie' has a D20 style plain screw on type speedo cable coupling and a long shaft version has the 'dial a tooth' style speedo assembly with a fork for holding the dial in place.
The need for the larger dial style speedo gear assembly was the reason for the retainer bolt pattern going 'Texas'.
 
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