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SYE conversion...how can you tell if TC is in 4wd

3K views 54 replies 8 participants last post by  Nubby55 
#1 ·
Hey folks....I am currently in the process of an SYE conversion....the TC is currently on my workbench and about ready to reinstall in jeep.

some of the tutorials that I have been reading and watching say....."with the TC in the 4wd position".... unfortunately I didn't happen upon this recommendation to put the TC in 4wd before starting....until after I already had it out.

do I need to be concerned about this when going to reinstall or will it work itself out when I reconnect the linkage?

thanks in advance...
 
#2 ·
When you turn the rear yoke by hand the front will spin too. It will spin in two wheel too but not if you hold the front yoke still. I would keep the case in whatever position the shifter is in already.
 
#3 ·
I think they recommend putting it in 4wd for reinstallation. So when you are reconnecting the linkage, the shift rod will not move. I might have it backwards, but in any case, the position of the box doesn't matter as long as the shifter is in the same position.
 
#4 ·
Then put it in 4LO and tie it to a big tree and give it hell and see if it spins the front tires.
 
#5 ·
alright....may be a dumb question....but I don't want to tear this thing apart again....instructional video called for "black rtv" to seal this case back up....they had about every other color of rtv...but the black stuff they had doesn't actually say "rtv".... does it matter?
Auto part Technology Electronics Electronic device
 
#6 ·
Yes it does matter. You want the rtv because its oil resistance. That silicon says its holds up against mild temps, weather and vibration, not atf. I would get somthing with high resistance to oil and temp
 
#8 ·
had it all back together and then was double checking the directions one last time before reinstalling....when I read the part about models before 1997 having bearings in one of the sprockets that have to be removed for proper fitting on the new shaft.....not sure how missed this the first time around...but didn't recall seeing these bearings....tore the whole thing apart again as mine is a 95....and as my luck would have it....no bearings after all....oh well....better to be save than sorry....time to put this thing back together again and get it back in the jeep....I miss my toy.
 
#13 ·
thanks for the help Mike....kind of a nube at this level of auto mechanics 101....

it looked like some at some point (I bought the jeep used about a year ago) someone had put what looks to be black rtv between the two.....I have cleaned all of that off....so you are saying just bolt them back together....metal on metal?
 

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#14 ·
There shouldn't be fluid in there I do believe they make paper gaskets for them but imo id rather have it leak so I know if the trans rear seal or the front xfer case seal is leaking, that and its possible to fill up your xfer case with gear or motor oil from your trans leaking into it if it cant leak out somewhere else.
 
#21 ·
got the TC back in today....(I.e bolted back in to the trans) starting to think about a drive shaft now....read a lot of measuring for length....not sure how precise this measurement has to be...the new drive shafts that I have looked at on line appear to extend and compress (slip if you will) to different lengths...

also...does the sye eliminate the need for the spacers (drop kit) between the frame and the skid plate?

what should I expect to pay for a rear drive shaft.....don't need "the best" but also don't want to by a peice of junk
 
#22 ·
damn...need some help. got the skid plate back on and everything.....seems that 2 High (which is what the jeep was in when I took the TC off....is working....I have no rear drive shaft on it yet but the rear yoke is spinning when in gear.....if I try to put it into 4H or 4L however.....I got nothing...neither yoke spinning....I am hoping maybe I have the linkage just hooked up wrong or something.
 
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