Twin sticks for the dana 20

[ragtopped]

I just put twin sticks on my tcase and was wondering what the pros and cons if any are for this. Do you guys run in rear h and front low or vice versa. Or do you have to be in in high or low with both at the same time.

[TBS-POPS]

Re: Twin sticks for the dana 20

you cannot have one in hi and the other in low as you will split the case wide open!!! both in hi or low together or being able to go rear neutral and front engaged is what twinstick'n is about, with the correct rail mods.

[CityHick]

Re: Twin sticks for the dana 20

The key is proper rail modifications (grinding specific spots down). Check out this site for details: http://www.wt4x4.net/tech/twinstick.htm

This being said with a t-shift D20 without rail mods you get everything but front low. Aside from the day I broke my D20 rear output I have yet to have a reason to run in front low but there's a first time for everything.

As for "accidentally" engaging one low/one high, you have to try to do that. You'll see with the shifters the two ranges are very far apart with neutral in the middle, so you'd notice if you had them crossed up well before doing any damage just by looking at them.

I do like the rear low option for the rare occasion when I'm pulling a stump or something though!

[welndmn]

Re: Twin sticks for the dana 20

I use front low all time, front digs are very handy on the trail.
But yes, you need to do the rail mods to take full advantage of it.

[twisted 66]

Re: Twin sticks for the dana 20

I have also heard with rail modifications it can pop out of gear easier.

[ragtopped]

Re: Twin sticks for the dana 20

Do you need to do the rail mods on the J shift case or just the t case

[House]

Re: Twin sticks for the dana 20

With the J Shift all you have to do is cut the "flags" apart on the shift linkage
with a cutoff wheel so they can work separately, no internal mods like on the T Shift.

[71BRONCO71]

Re: Twin sticks for the dana 20

If you don't have a selectable locker and need to make a tight turn, You can always pop the front end out of gear.

Thats what I do.

[jchevy4x4j]

Re: Twin sticks for the dana 20

Don’t want to beat a dead horse, as I have probably read every article on modifying the shift rails for the Dana 20 I can find online, however I have my transfer case out, and getting ready to start this project. I have read over both articles below several times. Is there a reason to take the transfer case (T Style) all apart including the idler gear if you can get to the set screws without removing those items?

http://wt4x4.net/tech/twinstick.htm
http://www.mallcrawlin.com/forum/sho...ation-(T-shift)

If I do need to take out the idler gear and output shaft are there any other tricks or advice other than what is in these two articles you would like to share? Looks like I’m going to try and tackle this on Saturday as my Tranny is getting rebuilt.

Cheers! Time to go stare at the opened transfer case and probably over think this project even more!

[SonicDonkey]

Re: Twin sticks for the dana 20

Jesse, you should have given me a little notice. I have a D20, Tera lo, and twinsticks sitting ready to be built. We could have had a tcase beer drinking party!

[welndmn]

Re: Twin sticks for the dana 20

That one is one of mine, and yes the idler gear needs to come out to get the shift forks off.

[jchevy4x4j]

Re: Twin sticks for the dana 20

Thanks Mark for that right up. Seen your name at the bottom of the article. I see you replaced the 1 front output shaft seal, 2 thrust washers, and 2 shift rail seals. Did you get those at the local parts house or where did you buy the kit from? I also notice the bigger kits replace the idler shaft. Im guessing that only needs to be replaced if there are bad scratches and nicks in it? Also is there any reason to replace the detent springs other if they seem to be warn out?

[welndmn]

Re: Twin sticks for the dana 20

I bought all the seals separately from Bay Shore truck equipment, it was cheaper then a whole kit, but I get everything at cost.
I'd replace the springs just because you're in there, I think JBG was the only person selling those.
I see no reason to replace the idler shaft unless, like you said, it's trashed.

[CityHick]

Re: Twin sticks for the dana 20

Jack O'Brien (Obrien's 4-wheel west) out of Roseville has a heavier rated detent spring kit. Might be quicker to give him a call vs. ordering from Michigan. His springs solved my issue of popping out of gear - but my detent springs were visibly shorter and a lot less springy so that explains my problem...

When I rebuilt my t-case the kit came with a new idler shaft and because it was there, I replaced it. Did I need to? Probably not.. but what the hell.

[jchevy4x4j]

Re: Twin sticks for the dana 20

I take it O'Brien works out of his home? His address is residential and I called but had to leave a message. I will try him first. I live 10 minutes from there.