No 4 LOW

ChuckD · Jan 18, 2004

I did a AA SYE on my 93' 231 tcase about 2 months ago. I thought everything was working correctly. Well we went up to the snow this weekend and I could shift into 4 High just fine. But when I would shift into 4 low and nothing, just like nuetral. Then I noticed if I held the handle the partime light would come on. So I tried that for awhile, and figured it is just a linkage problem. Well i found out I was just in 2 low, the rear wheels were spinning but the front was not.

I'll be tearing into this Monday. Do you guys know if I have to rebuild it or is there a simple fix.

Thanks,

Chuck

JeepFreak21 · Jan 18, 2004

ChuckD said:
I did a AA SYE on my 93' 231 tcase about 2 months ago. I thought everything was working correctly. Well we went up to the snow this weekend and I could shift into 4 High just fine. But when I would shift into 4 low and nothing, just like nuetral. Then I noticed if I held the handle the partime light would come on. So I tried that for awhile, and figured it is just a linkage problem. Well i found out I was just in 2 low, the rear wheels were spinning but the front was not.

I'll be tearing into this Monday. Do you guys know if I have to rebuild it or is there a simple fix.

Thanks,

Chuck

I had that problem after piecing together 3 231's to make 1 231. Turns out I used a shift fork from an off year or something and it wasn't bent the same.
Unfortunatly, that's probably not your problem unless you had a bunch of random t-case parts laying around when you did your SYE

ChuckD · Jan 18, 2004

That's the thing, the install went very smoothly, except for those pestsky snap rings. I did read in the instructions that the shift fork may be too long. I think I measured it and it was within specs. But I guess that would explain why I can't get into 4 low.

Thanks Billy

ChuckD · Jan 18, 2004

Gary E · Jan 18, 2004

So you took the linkage off and tried to shift it into two low. One of the drivers challenge rigs in moab had some issues withing popping out of 4 low, I can't remember if it went out of 4wd or went into neutral, but basically it seemed like it had to have some linkage holding it in 4 low

ChuckD · Jan 18, 2004

Gary E said:
So you took the linkage off and tried to shift it into two low. One of the drivers challenge rigs in moab had some issues withing popping out of 4 low, I can't remember if it went out of 4wd or went into neutral, but basically it seemed like it had to have some linkage holding it in 4 low

It shifts into 4low, but no partime light and no go. If I pull it tight the partime light comes on and I have rear 2 low, and that pops a bit while moving.

Gary E · Jan 18, 2004

ChuckD said:
It shifts into 4low, but no partime light and no go. If I pull it tight the partime light comes on and I have rear 2 low, and that pops a bit while moving.

So have you adjusted the linkage? Maybe you just can't pull it far enough?

ChuckD · Jan 18, 2004

Gary E said:
So have you adjusted the linkage? Maybe you just can't pull it far enough?

Ok Gary, I'll check the linkage. But I'm waiting to do it on Monday. I don't see why the linkage would be the problem. I lowered the tcase 1", I didn't have any trouble, so now I'm back to stock without the drop. It may have bent it over time, I'll know more by Monday.

CRASH · Jan 19, 2004

Did you trim the shift rail enough? Often this is a problem for peeps when they install a new talihousing.....

CRASH

ChuckD · Jan 19, 2004

CRASH said:
Did you trim the shift rail enough? Often this is a problem for peeps when they install a new talihousing.....

CRASH

I didn't trim it at all. According to the directions it did not stick out far enough. I do know for a fact the 231 I have had the roller bearings on the main shaft, if that helps. I was mistaken to mean the shift rail fand not the shift fork.

If that's the problem then I'll I would have to do is take off thetail housing.

Thanks everyone!

CRASH · Jan 19, 2004

ChuckD said:
I didn't trim it at all. According to the directions it did not stick out far enough. I do know for a fact the 231 I have had the roller bearings on the main shaft, if that helps. I was mistaken to mean the shift rail fand not the shift fork.

If that's the problem then I'll I would have to do is take off thetail housing.

Thanks everyone!

Check it again, I bet it needs a trim......

CRASH

moneypitxj · Jan 19, 2004

it says not to have the shift rail stick out anymore then an inch. i never trimmed mine and my tcase always pops out of 4low so mine is probably too long.

willysnut · Jan 20, 2004

Is the mode hub installed properly? I rebuilt my 231 during the summer and put the hub in wrong it all went together fine but would only shift into 4hi harshly and would not fully engage 4lo and would pop out. Remedy was to split the cases and reverse the range hub and reassemble. As I remember the long side of the hub faces the long end of the shift rail during assembly. Took about two hours to correct, can be done without removing the T/C.
Works fine now. Maybe thats your problem as adjusting the linkage wouldn't help.

XJJPR · Jan 20, 2004

Check these things,

linkage
shift rail rod, too long.
range hub and all the plastic guides

mark

ChuckD · Jan 25, 2004

Gary and Mark were right, it's the linkages. Still a bit out of adjustment, but 4Low and 2H are right in place. 4H works, but I have to work the lever a little. I did pull off the HD cone, and the shift rail was only 3/4".

Thanks again everyone!

No 4 LOW

ChuckD

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