Thread: centre diff problems?

Originally Posted by lambrover

Have you been 4x4ing, you may have wind up in the transmission. have you tried rotating the wheels when it was jacked up, it can be hard to turn just the drive shaft as there is lots of weight involved.

Hi yes I have tried rotating the wheels,I removed the inspection plate and can see the centre diff lock selecter,it is moving back and forward.but with the car off the ground everything turn together just as if the front shaft gear is jamed in diff unit
jim.

The centre diff is not strong, nor lubricated well enough to sustain offroad work while unlocked.

It sounds like you will have to pull the centre diff.

A one piece cross shaft is a good strength upgrade for centre diffs.

Well its all apart(I love the smell of gear oil in the morning),the one piece cross shaft that I had paid for when last rebuilt somehow turned into a standard 2 piece setup which is now a 3 piece.
Thanks to all for the advice,yes the centre diff comes out the front,yes it can be removed with T/case in the car,will it all go back together easily?I'll let you know.
Jim.

Originally Posted by yt110

Well its all apart(I love the smell of gear oil in the morning),the one piece cross shaft that I had paid for when last rebuilt somehow turned into a standard 2 piece setup which is now a 3 piece.
Thanks to all for the advice,yes the centre diff comes out the front,yes it can be removed with T/case in the car,will it all go back together easily?I'll let you know.
Jim.

how long ago did you have it rebuilt, man I would be so about the non exsistant one piece cross shaft. good luck mate.

Originally Posted by lambrover

how long ago did you have it rebuilt, man I would be so about the non exsistant one piece cross shaft. good luck mate.

Yes I'm not happy about it and the bloke that O/H it has shot through,it was about 6 years ago,so I suppose its has lasted OK.I have regularly changed oils etc.and I'm very careful with the drive line in the county specialy my centre diff ,I've been off roading with people who have cut up a track the bragged how they made it "in 2WD",I hate that.I've spent a lot of time and money to avoid wheel spin and when needed select my track preservation mode(rear maxi drive/front true track.).
Jim

Originally Posted by yt110

Well its all apart(I love the smell of gear oil in the morning),the one piece cross shaft that I had paid for when last rebuilt somehow turned into a standard 2 piece setup which is now a 3 piece.
Thanks to all for the advice,yes the centre diff comes out the front,yes it can be removed with T/case in the car,will it all go back together easily?I'll let you know.
Jim.

That is not good for a one piece cross shaft - I would suspect a faulty item or else bad manufacture, inferior material, or heat treatment. Do you know whose make it was?

They should be many times stronger than 2 piece shafts that are reduced to half thickness where they cross.

Edit: Sorry I think I may have miss-read your post. I first thought the one piece broke into separate pieces, but on reading again, it seems like you were duped and stock 2 piece shaft were fitted instead of a one piece.

Originally Posted by yt110

Yes I'm not happy about it and the bloke that O/H it has shot through,it was about 6 years ago,so I suppose its has lasted OK.I have regularly changed oils etc.and I'm very careful with the drive line in the county specialy my centre diff ,I've been off roading with people who have cut up a track the bragged how they made it "in 2WD",I hate that.I've spent a lot of time and money to avoid wheel spin and when needed select my track preservation mode(rear maxi drive/front true track.).
Jim

good one mate, there is not much point to spinning your wheels any way,my tyers are over $400 each and the track gets stuffed for the other users that don't have big tyers ( can't get through).

I'm about to drop in a 'new' TC into my county.. is a one peice shaft something I should upgrade while it is out?

If so, what do I ask for?

(forgive my blatant ignorance.. or potentially stupid questions..)