TCase Dana 300 Twin Stick Shift Pattern

[thatoneguy99]

Let me start off by saying that these are some of the worst pictures I have ever taken. Hopefully you can gleam some information from them somehow.

I understand that this is a beaten dead horse, but because of that, it is hard to find a meaningful thread about it (that helps me). I don't know how to shift my twin stick setup. I bought it like this. This is a Dana 300 tied to a TH350 Transmission . The right stick seems to have two positions only. Neutral and low. The left stick seems to have three positions. Hi, neutral, and low.

From what I can tell, all the way back on the left stick is hi, middle is neutral, all the way forward is low. The right stick seems to have all the way forward and all the way back.

All the way forward on the right stick and the front driveshaft doesn't move (in park), as expected. All the way back it moves. The left stick acts as I assume it does and I feel a noticeable click into each position.

Is it possible that I have no front high with the rear in neutral? Is there a position on the right stick that I am just not finding? Maybe it needs to go even further back, but it won't/can't for some reason?

Please help me figure this out. Then I will never forget it. Thanks in advance and if you need more information, please let me know.

 

[Manic Mechanic]

Right stick should be the front axle and have low, high, and neutral.

Left stick is rear axle with the same options. Right stick can not be shifted into high gear without the left stick also being in high.

 

[thatoneguy99]

Thank you! So, I should not be able to put the left stick in neutral and the right stick in high? Which is what I was trying to do.

 

[Manic Mechanic]

You should be able to put the right stick in low and the left in neutral

 

[thatoneguy99]

Yes, I can do that. Just not front in high, while the rear is in neutral.

 

[TSB8C]

I have the same setup, except different Transmission (700R4). Left stick is rear axle with back being high and forward being low, neutral in center. Right stick is same for the front axle. So 2H high is left stick back and right stick centered (neutral). 4H is both sticks back. 4L is both sticks forward. Front wheel drive only would be left stick centered (neutral) and right stick forward for front axle in low - useful when rear is slipping and you want only the front to pull you out.

 

[dirt4boy]

This might help. It applies to the twin stick I adapted to my 20 Transfer Case .

 

[KRUPP]

I’d wager that there’s some slop or adjustment necessary in the linkage for the right/front stick.

Or, is this something that only happens when the Jeep is at rest? If so, a bit of rotation to the front driveshaft while moving the front shifter definitely helps things to operate correctly.

 

[grimmjeeper]

I’d wager that there’s some slop or adjustment necessary in the linkage for the right/front stick.

Or, is this something that only happens when the Jeep is at rest? If so, a bit of rotation to the front driveshaft while moving the front shifter definitely helps things to operate correctly.

The Dana 300 is not synchronized so that can come into play. Moving <2 MPH helps things line up and makes for a smoother shift.

But there can also be some adjustments needed in the linkages too.

This is the shift pattern for my Dana 300

 

[CJ]

Please be very careful when using your twin stick. Many remove the safety pills so you can do a dig. But that allows you to place a high and low range in gear at the same time. That equals an explosion.
Just saying...

 

[grimmjeeper]

Please be very careful when using your twin stick. Many remove the safety pills so you can do a dig. But that allows you to place a high and low range in gear at the same time. That equals an explosion.
Just saying...

Yeah. Don't cross the streams. It would be bad.

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[CJ]

LMAO! So many don't understand about crossing the steams. Damn we are old...

 

[thatoneguy99]

Thank you to everyone, I figured it out. The problem was me and not knowing that I couldn't put the front in high without the rear also in high. I was tracking down a noise (still am technicall), and had removed the rear driveshaft. I assumed I could put the rear in neutral and the front in high and drive it to see if the noise went away. Now I know I can't do that and have to have the rear in high at the same time as the front.

Once I learned that, the right stick went into high no problem. The noise I am hearing is almost like a grinding noise when I let off the gas going about 30 or 40 mph. I am 95% sure that it got better when I replaced the rear u-joints, so I am going to do that to the front driveshaft as well.

 

[KenS]

There are multiple options with twin sticks