noisy transfer gears

Post by **built4thrashing** » Sun Dec 21, 2008 9:12 pm

recently rebuilt the t/case in the sierra and it is really noisy. the noise is only really bad when under power at speeds and is really bad above 80km/h. to the point where it is heard over the stereo and the noise of the extermes.

Any thoughts what could be making such a loud whine and tips on how to fix.

Cheers B4T

Post by **joeblow** » Sun Dec 21, 2008 9:30 pm

was it shimmed as per the zook workshop manual?

Post by **jonno_racing** » Sun Dec 21, 2008 9:56 pm

mine did that...
then i added oil...

check the oil!! i felt like a tool when i did it!

Post by **built4thrashing** » Mon Dec 22, 2008 9:03 pm

the entire case was given to a gearbox rebuilding shop with the relivant section of the manual. and it came back just as noisy. Ive since swapped the gears into a different case as i fount the input shaft bearing was loose in its housing. new case is better but everything is still noisy..

And yes It has oil.

B4T

Post by **St Jimmy** » Mon Dec 22, 2008 9:09 pm

Bad bearing,

mine was noisy till i put new bearings in it.

Post by **Pezooki** » Tue Dec 23, 2008 1:39 pm

Hi B4T.

I assume that ALL new bearings were used in the rebuild? (Was the Front Output needle bearing, and the 2 main needle bearings replaced too?)

Pez

Post by **brendan_h** » Tue Dec 23, 2008 2:00 pm

joeblow wrote:was it shimmed as per the zook workshop manual?

is there anymore info i can get here? i got my rebuilt kit today and hopfully going to rebuild the tcase tomorow

Post by **joeblow** » Tue Dec 23, 2008 2:08 pm

done.....

Post by **brendan_h** » Tue Dec 23, 2008 3:21 pm

are you able to buy shims at repco maybe supercheap?

do you need a press to press the bearings off?

Post by **GRPABT1** » Tue Dec 23, 2008 10:01 pm

I got all my bearings on/off with a gear puller and a few sizes of pipe and hammer.

Post by **brendan_h** » Wed Dec 24, 2008 9:44 am

GRPABT1 wrote:I got all my bearings on/off with a gear puller and a few sizes of pipe and hammer.

thanks. a nothing thing i might add. is the tcase shifter supost to be able to pull out? how do i explain it. like there nothing holding it in there only the rubber boot?

Post by **Gwagensteve** » Wed Dec 24, 2008 11:05 am

no, there's a locking ring you have to push down and turn anticlockwise to release the lever.

Sounds like yours has come undone.

Steve.

Post by **brendan_h** » Wed Dec 24, 2008 11:25 am

does anyone have any pics of what the lock ring looks like?

Post by **GRPABT1** » Wed Dec 24, 2008 10:16 pm

Stock shifter on the right, evil twin shifter on the left with locking ring over it. Stock shifter works with a shifter bush (mine was gonesky), the evil twin doesn't. The locking ring pushes down and turns clockwise to lock onto the two pins inside the the cases shifter surround.

Post by **jonno_racing** » Wed Dec 24, 2008 10:49 pm

oooooh some one has twin sticks!

Post by **GRPABT1** » Thu Dec 25, 2008 10:15 am

joeblow wrote:was it shimmed as per the zook workshop manual?

What is the potential problem if it wasn't? Is it just noise or can the gears fail?

Post by **joeblow** » Thu Dec 25, 2008 9:30 pm

GRPABT1 wrote:
joeblow wrote:was it shimmed as per the zook workshop manual?
What is the potential problem if it wasn't? Is it just noise or can the gears fail?

its like a diff, if there is noise than they are more than likely not running with an optimum pattern which could lead to early gear wear and maybe failure.

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