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post #1 of (permalink) Old 01-25-2004, 02:46 PM Thread Starter
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interlock pin - dana 20 (Done!)

I'm having trouble w/ my dana 20 shifting. It dosen't want to go into high range. When I force it to shift it moves forward a notch but dosen't engage all the way (I just get a grinding noise when I try to move). So ........ I have a spare that came out of a J-10 FSJ and the shift linkage is way to far forward. I'm going to twin-stick it and use it while I screw around w/ the original. Found some good write ups on here for the linkage, thanks guys.

Anyone have a good description or pic's of how to remove the interlocking pins? Apparently there is an access panel somewhere and an allen screw?
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post #2 of (permalink) Old 01-25-2004, 05:34 PM
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Re: interlock pin - dana 20

This picture is a D300 but the D20 is very similar in this area. The D300 has two interlocks and the D20 only one. Plug is on the side and shouldn't be hard to find (under the mud and grease), items 2 & 3 in this picture.



Hope this helps
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post #3 of (permalink) Old 01-25-2004, 05:58 PM Thread Starter
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Re: interlock pin - dana 20

I found and removed the plug. But behind it I only see the shift rod (solid) and not the pin. If there was a pin there that I'm not seeing, how would I remove it? Is it suppose to just fall out?
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post #4 of (permalink) Old 01-25-2004, 06:08 PM
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Re: interlock pin - dana 20

I'm having trouble w/ my dana 20 shifting.

I'd take a close look at the nut that holds the shifter [img]images/graemlins/chairfall.gif[/img]
Did I say that out loud?
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post #5 of (permalink) Old 01-25-2004, 06:16 PM
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Re: interlock pin - dana 20

After you disconnect the shift forks you should be able to turn and then remove the right shift rod (front drive engage).

I think that the interlock is between the two shift shafts and will prevent the right shift rod from coming out unless the left shift rod (high/low range) is in low (or is it high, you will get it). The interlock will then come out through the hole in the side and the left shift rod should turn and come out also.

My memory of a D300 is sorta fuzzy and it's been alot longer since I was into a D20 so I hope that there isn't something I am forgeting to do here. Go slow and look at the exploded views and I'm sure you will get it apart.
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post #6 of (permalink) Old 01-25-2004, 06:20 PM
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Re: interlock pin - dana 20

</font><blockquote><font class="small">In reply to:</font><hr />
I'd take a close look at the nut that holds the shifter

[/ QUOTE ]

Isn't that a given around here?? If we weren't nuts then we would be somewhere else. [img]images/graemlins/40BEER.gif[/img]
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post #7 of (permalink) Old 01-25-2004, 07:49 PM Thread Starter
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Re: interlock pin - dana 20

I now believe that there is a set screw that has to be loosened to remove the shift rod. I can see it in the pic where the right shift fork meets the right shift rod.



I don't have a allen wrench that long and even if I did I'm afraid that I would never get it set back in the right place again. Also, reinstalling the springs and ball bearings that hold the shift rods in place has me a little nervous.

So, I'm going to wimp out and to the twinstick w/o removing the interlocking pin. I'm thinking I will still have 2 hi and lo in the rear' and 4 hi and lo. That's all I think I need.
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post #8 of (permalink) Old 01-25-2004, 09:20 PM
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Re: interlock pin - dana 20

Well damn... go to Sears and get a set of Allens. This isn't brain surgery. Yes you do have to remove the setscrew that holds the shift fork to the shift rod.

Sorry, sometimes I just have to say D'oh!

You can do it.... it's just a greasy box of gears... you have thumbs and likely an adjustable wrench to put on that long allen wrench when you get back from Sears.

If you don't really feel comfortable with taking that D20 apart you should find someone that does. Sorry if I took you someplace into the deep.

I hope this isn't a [img]images/graemlins/thud.gif[/img]
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post #9 of (permalink) Old 01-25-2004, 09:52 PM
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Re: interlock pin - dana 20

sounds like you need a straw... too just suck it up... you have two of them... tear the broken one apart.. and figure it out... damn.. not even a week after i leave... and whats the first thing i see... whine whine whine... im a dirty whore.. whine whine whine... [img]images/graemlins/grin.gif[/img]
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post #10 of (permalink) Old 01-25-2004, 11:22 PM Thread Starter
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Re: interlock pin - dana 20

Hey Pat,







































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