Outer Limits 4x4 Board

its an 86 zook and its got an a1500 nissan motor and a nissan auto in it i brought it like so. the drive shaft to the transfer is real short almost uni to uni and its making a huge vibration, has anyone done such a conversion and can help me or steer me to someone who can help correct this problem please??
my email is chadwik@bigpond.net.au

i havent done that exactly but do have 4k corolla and auto ,my shaft consists of a single uni.the internal cap size of toyota and zook are the same so its flange to flange and one uni .to eliminate vibrations i set the engine up so that that uni had bout 3 to 5 degress of flexion.so basically my advice for what its worth is set your motor up so that the jack shaft is nearly dead straight.mine doesnt vibrate at all.heres a pic if it helps ya .jack shafts dont come any shorter than this

roc box wrote:i havent done that exactly but do have 4k corolla and auto ,my shaft consists of a single uni.the internal cap size of toyota and zook are the same so its flange to flange and one uni .to eliminate vibrations i set the engine up so that that uni had bout 3 to 5 degress of flexion.so basically my advice for what its worth is set your motor up so that the jack shaft is nearly dead straight.mine doesnt vibrate at all.heres a pic if it helps ya .jack shafts dont come any shorter than this

i dont follow what your saying mine looks simular but the zook yoke is welded in about 10mm of the old nissan tail shaft (2 sets of uni's_) 1 nissan 1 zook i lifted the gearbox up 5mm and it calmed the vibration.
what do you think keep lifting it?

What sort of condition are the Uni's in ?? Are they new and greased ?

Did it always vibrate or just start and gradually get worse ?
Are your transfer case arms straight ?

albey wrote:

roc box wrote:i havent done that exactly but do have 4k corolla and auto ,my shaft consists of a single uni.the internal cap size of toyota and zook are the same so its flange to flange and one uni .to eliminate vibrations i set the engine up so that that uni had bout 3 to 5 degress of flexion.so basically my advice for what its worth is set your motor up so that the jack shaft is nearly dead straight.mine doesnt vibrate at all.heres a pic if it helps ya .jack shafts dont come any shorter than this

i dont follow what your saying mine looks simular but the zook yoke is welded in about 10mm of the old nissan tail shaft (2 sets of uni's_) 1 nissan 1 zook i lifted the gearbox up 5mm and it calmed the vibration.
what do you think keep lifting it?

i have no shaft just the one uni between the 2 flanges.its all that connects the flanges together.yeh try different possies for it something might gel.i can put my finger on the transfer lever at 80ks and theres no vibes .

love_mud wrote:What sort of condition are the Uni's in ?? Are they new and greased ?

Did it always vibrate or just start and gradually get worse ?
Are your transfer case arms straight ?

it was bad when i brought it but i shimmed the gearbox up a little and it got a little better, the faster u go the worse it get's. is it possible to get such a small shaft balanced?

has anyone done the same converion or does someone know of someone who has?

With a shaft that short it sould not really need balancing.. are the uni's in perfect phase ?? (Can you snap a pic like roctoy ?)

love_mud wrote:With a shaft that short it sould not really need balancing.. are the uni's in perfect phase ?? (Can you snap a pic like roctoy ?)

i can but ill have to email it to you is that cool?

such a short shaft will need balancing it doesnt take much.

whats the model of the engine? what is it out of and whats the power like from it? thanx

albey wrote:

love_mud wrote:With a shaft that short it sould not really need balancing.. are the uni's in perfect phase ?? (Can you snap a pic like roctoy ?)

i can but ill have to email it to you is that cool?

yep .. just click on the email link under any of my posts ...

fuck it im not going there anymore chucking a suzuki 1.3 in it now

I had that combo in my zook maybe the exact one? If it is I had the jackshaft made by hardy spicer and there was no vibration.
Nik