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post #1 of (permalink) Old 12-05-2005, 08:02 PM Thread Starter
 
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Dana 20 question

I have a bit of a dilema, I just purchased a used Dana 20 transfer case, the gears look good and the shifter seems to shift fine, but upon further inspection I found two small holes near the shifter. They are threaded and look like a detent should go in the hole, but righ now there is just a plastic plug in each one. If you look down the hole while shifting the lever you can see small notches that look like they would accept a detent ball. Any help? If it does take a detent and spring where do I get them and do they come with the cap or plug to hold them in place?
Thanks,
David
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post #2 of (permalink) Old 12-05-2005, 08:19 PM
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Re: Dana 20 question

Those are simply a spring, ball bearing and a set screw to hold them in. Try here:

<u>All State 4WD</u>

Find the Dana 20 section (can't link their Java stuff) and look for this picture:



I think you are looking for item #6 and #7, might be on your own to find a couple set screws.

Now if you want to put a twin stick on it (likely what the prior owner had) just find a couple of set screws to plug the holes.

[img]/ubbthreads/images/graemlins/40BEER.gif[/img]
Dale

Edit: Second thoughts.... been years since I messed with a Dana 20. Maybe someone else should comment on running without the detents, always safer to stay with the original design.
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post #3 of (permalink) Old 12-05-2005, 08:35 PM
 
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Re: Dana 20 question

[ QUOTE ]
Those are simply a spring, ball bearing and a set screw to hold them in. Try here:

<u>All State 4WD</u>

Find the Dana 20 section (can't link their Java stuff) and look for this picture:



I think you are looking for item #6 and #7, might be on your own to find a couple set screws.

Now if you want to put a twin stick on it (likely what the prior owner had) just find a couple of set screws to plug the holes.

[img]/ubbthreads/images/graemlins/40BEER.gif[/img]
Dale

Edit: Second thoughts.... been years since I messed with a Dana 20. Maybe someone else should comment on running without the detents, always safer to stay with the original design.

[/ QUOTE ]
Are you sure he is not talking about the 4wd and low range light actuators?
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post #4 of (permalink) Old 12-05-2005, 08:40 PM
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Re: Dana 20 question

[ QUOTE ]
Are you sure he is not talking about the 4wd and low range light actuators?

[/ QUOTE ]

Ummm no I'm not sure. Don't remember there being switches on a Dana 20. There is a 4wd switch on a Dana 300. The diagram should help either way.

[img]/ubbthreads/images/graemlins/40BEER.gif[/img]
Dale
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post #5 of (permalink) Old 12-05-2005, 11:26 PM Thread Starter
 
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Re: Dana 20 question

can it be driven without the balls and springs?
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post #6 of (permalink) Old 12-06-2005, 06:32 AM
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Re: Dana 20 question

[ QUOTE ]
can it be driven without the balls and springs?

[/ QUOTE ]

Yes, but it's not a good idea if they are in fact the detents for the shift rails. If a rail should move under load it cause damage. And there's the safety issue if it were to pop into neutral just as you need power.
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post #7 of (permalink) Old 12-06-2005, 06:42 AM
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Re: Dana 20 question

It has been a good long time since I have had my D300 opened up, and I am going on the assumption that the D20, and 300 are the same.
But I think that all you should need to do is to plug those holes. I believe that when you are putting the Transfer case together, and the time comes to install those shift rails, you put the spring into the hole, then place the ball on top of it, and then slide the shift rail through. So as you look down into those holes the spring and ball are acutally Under the rail.
When you shift the Xfer case through the ranges, can you feel the case kind of "lock" into place? If so, I would think that the springs, and ball are in there.

Again, I am going on the assumption that the D300, and D20 are the same. I have never been inside a D20
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