Rear wheels only turn in 4LO - Page 2 - JeepForum.com
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post #16 of 46 Old 02-14-2020, 09:05 PM
John Strenk
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Quote:
Originally Posted by CSP View Post
Edit: Read more replies after posting so guessing this isn't it.

Glad I'm not the only one who thought only the rear wheels work when it's shifted into 4lo, as in everything is fine in the other tcase selections.

Turns out they only work if it's shifted into 4lo.
I did the same thing. Thatís why ther is an oops in my first post.



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post #17 of 46 Old 02-14-2020, 11:08 PM
RedNeckCorvette
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373 rear 2.73 front I do not think removing the drive line at this time is as important as inspecting that transfer case for damage.
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post #18 of 46 Old 02-16-2020, 10:18 AM Thread Starter
specv510
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I had some time yesterday evening to check things out and take things apart. No broken gears. Linkage and forks are working correctly as far as I can tell. I have no clue how this thing is supposed to engage, but as soon as the rear fork moves to high the output spins like itís in neutral. I found an old post that sounded like they had the same problem as me and they had to tighten a set screw? The pictures in the post wouldnít load so I donít know where the set screw is?

Some pics:



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post #19 of 46 Old 02-16-2020, 10:29 AM Thread Starter
specv510
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Rear wheels only turn in 4LO

...also, when I had the linkage apart and was trying to move each rod independently, I broke the circled piece below. Seems to be a pain to find it by itself, but it looks like if I go with a twin stick set up that piece is no longer needed. Is that correct?




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post #20 of 46 Old 02-16-2020, 10:51 AM
shadoow
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the set screw is probably for a shift fork which makes sense that you're not getting the right gear action when you shift it. Is so, you'll have to disassemble some to get to it.
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post #21 of 46 Old 02-16-2020, 10:20 PM
CSP
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1982 factory service manual can be found here: https://oljeep.com/edge_82_tsm.html

It will have the specifics of your Dana 300 transfer case. Don't worry about the model year.
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post #22 of 46 Old 02-17-2020, 05:59 AM
jeepdaddy2000
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You have the cover off. With the transmission in gear and it locked in 2H, rotate the rear output yoke and see what isn't engaging.

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post #23 of 46 Old 02-17-2020, 11:45 AM
John Strenk
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Originally Posted by specv510 View Post
...also, when I had the linkage apart and was trying to move each rod independently, I broke the circled piece below. Seems to be a pain to find it by itself, but it looks like if I go with a twin stick set up that piece is no longer needed. Is that correct?




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I'm not sure what part you have circled here?


The part that connects t both rods?
The shift lever?


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post #24 of 46 Old 02-17-2020, 01:03 PM Thread Starter
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Originally Posted by John Strenk View Post
I'm not sure what part you have circled here?


The part that connects t both rods?
The shift lever?


Itís the shift control link according to the Haynes manual. The FSM just calls it a control link.



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post #25 of 46 Old 02-17-2020, 01:04 PM Thread Starter
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Quote:
Originally Posted by CSP View Post
1982 factory service manual can be found here: https://oljeep.com/edge_82_tsm.html

It will have the specifics of your Dana 300 transfer case. Don't worry about the model year.


Iíve read through the section on the Dana 300, but it doesnít offer a solution for my situation. And the schematic doesnít help me understand how this thing works.


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post #26 of 46 Old 02-17-2020, 01:10 PM Thread Starter
specv510
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Originally Posted by jeepdaddy2000 View Post
You have the cover off. With the transmission in gear and it locked in 2H, rotate the rear output yoke and see what isn't engaging.


Unfortunately nothing engages. The shift forks move like theyíre supposed to, but the rear output yoke spins like itís in neutral. I donít have a clue what is supposed to make it engage while in high? It does engage in low.


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post #27 of 46 Old 02-17-2020, 06:39 PM Thread Starter
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I think Iíve solved my mysteryóthe rear output shaft gear (#36) is on backwards. Do I have to drop the whole transfer case or can I pull everything out through the rear output?




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post #28 of 46 Old 02-17-2020, 07:07 PM
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Originally Posted by specv510 View Post
I think Iíve solved my mysteryóthe rear output shaft gear (#36) is on backwards. Do I have to drop the whole transfer case or can I pull everything out through the rear output?




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Looks like whoever adapted the sm 465 to the dana 300 got the gear flipped when they installed the longer d300 input shaft. Not sure if you can get to it through the rear output. It's normally installed by taking the input shaft assembly off the front of the case


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post #29 of 46 Old 02-17-2020, 07:15 PM Thread Starter
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Originally Posted by cjoffroad View Post
Looks like whoever adapted the sm 465 to the dana 300 got the gear flipped when they installed the longer d300 input shaft. Not sure if you can get to it through the rear output. It's normally installed by taking the input shaft assembly off the front of the case


I had a feeling that was the case. I guess Iíll try it without dropping the TC, but in the back of my head I know Iíll be taking the whole thing out.


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post #30 of 46 Old 02-17-2020, 07:40 PM
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I had a feeling that was the case. I guess Iíll try it without dropping the TC, but in the back of my head I know Iíll be taking the whole thing out.


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Yeah on second look the bearing (44) has to be pressed off the output shaft and the gear (42) won't come out through the output opening. Looks like your dropping it.


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