Problems with my zook

[Stubbs]

I have an 87 lwb leafy zook and I have been getting vibrations throughout the whole car at around 50-65km/h. On the way back from a camping trip a little while ago the vibrations got alot worse as i was driving at around this speed, the 4wd/2wd gear stick was shaking quite abit until the drive-shaft dropped off at the transfer-case end. The 4 bolts holding it on have just snapped. I was also unable to engage 4wd for a few days before this happened.
Thankfully the exhaust pipe hangs under the drive-shaft on my zuk and stopped the drive-shaft from dropping the front end to the ground and causing a crash. The car still starts and is alright engine-wise but cannot engage any gear in 2wd or 4wd.
I have been told that this could all be a problem with the transfer-case and am looking for a new one now. If this isn't the problem, any advice would be very helpful as I am keen on getting my zook running again ASAP.

Cheers, Stubbs

[nicbeer]

Were the bolts possible loose before and because of vibrations they have snapped

Try spin the box by hand to see it it feels ok

cheers

[Stubbs]

I’m pretty sure that the bolts weren’t loose but it could b possible because the length of time that it has been vibrating could maybe loosen one bolt which could have thrown it off balance and stressed the others but I cant see any bends in whats left of the bolts but that could just be because there is only about 3mm left of them to look at.
I tried spinning the box in neutral and I could spin it and it didn’t make any grinding noise or anything like that and it felt smooth.
I have a strong feeling that it is a transfer-case problem though because I cannot move the 4wd/2wd gear stick at all whatever I try to do with it but the stick could just be stuck or broken, I’ll have to pull it apart before I know for sure

Cheers, Stubbs

[nicbeer]

hmm

Lift the stick up a bit and then move between 2wd and 4wd. sounds like the shifter sheet has gone that is below the transfer lever.

take lever out and have a look at the rubber bit below it.

a seach on here for shifter sheet is also good to do.

cheers

[Nev]

could be possible that it is two different problems..transfer may not shifting coz shifter bush is stuffed (seems to be a fairly common problem) and the vibrations could be caused from a bent driveshaft. Do you remember hearing any loud bangs offroad before the noise appeared? Just what it sounds like it may be to me...

[BOB_1]

Could it be a Uni on the tailshaft completely letting go?

[Stubbs]

Do you remember hearing any loud bangs offroad before the noise appeared?

no, i dont remember any bangs or anything like that, i think the driveshaft is alright but ill have a good look at that today

Could it be a Uni on the tailshaft completely letting go?

Im pretty sure that the uni joints are alright aswell but i'll check it out

I'm going to be pulling up a bit of the floor today and getting under the gearstick to have a look to see if anything has moved around and hopefully i'll find whats wrong

[Stubbs]

I bought a 1lt case and have been changing the flanges etc over the last few days and it should be all finished today. The problem ended up being a rubber ring just under the shifter that had broken down but I had already bought the 1lt case before I knew that the problem was so small, so I thought I might as well use the lower gearing anyway.
Thanks to everyone for the help

Cheers, Stubbs

[smileysmoke]

hi stubbs.

you didnt mention if the vibration was still there.. or was this fixed when the transfer case? would be good see what it was caused by.

cheers mate

[Stubbs]

G'day

There are no vibrations any more, I think that was just the bolts loosened or something which eventually caused the breaking of the studs. The only thing wrong with the case was a small rubber ring that had broken down a bit and somehow made me unable to engage any gears.
The 1lt case I have in now is great, the low-range is sweet.

Cheers, Stubbs