[oscar]

me bro has these diffs in his sierra, the rear has pooed it so he says. wat will he need to replace it? eg crown and pinion

[steve]

is that the welded one he had in it?

[royce]

whatever bits are broken

gears or bearings or both

[oscar]

haha yep

[steve]

he wont know what's broke until he pulls it out.

the crown wheel might be ok. the axle could be broken?

[oscar]

he said it still works its just real loud when he accelerates

[royce]

new muffler perhaps?

[oscar]

haha, that too. diff noise

[royce]

if its noisy when you accelerate and quiet when you back off you can pretty well bet the pinion bearings are shot

[oscar]

really, he recons it sounds like metal on metal. he beter put it apart in case it is just the bearings so he doesnt trash the rest

[royce]

yeah itll wear the gears pretty quick

[oscar]

cheers yall

[oscar]

Will u need a wt crown and p0inion for a 5:12 center

[royce]

5.12 is the gear ratio
crown and pinion and the gears
WT gears are 3.7 ration

so no you wont, gears will be useless

[steve]

oscar wrote:

p0inion

i think dean's been drinking

[oscar]

haha hmmm u may be right.

me bro recons he may need a new vit diff which is 5:12. is there any gear swaping or anything else need to be done before the 5:12 can be bolted to a wt diff

[royce]

go slap your brother round the head a bit

his diff is made of these parts

Sierra carrier (the big steel bit everything bolts to)
Vitara 5.12 front gears (crownwheel and pinion)
Sierra hemisphere (the bits where the axles slide into)
various bearings (same for both diffs)

the bit that is stuffed on his will be the bearings (you can be 99% sure fo that)

the only way buying any WT diffs will help him is if he goes and buys a front and rear sierra diffs and puts them in with the resulting difference in acceleration and low range gearing

swapping gears is hard work and a job for somebody with the tools and knowhow (and by tools I mean dial gauges, presses and preload meters)

pull the tail shaft off, jack the wheels up and give the pinion a shake to check for any free play / dodgy sounds

then pull it out, take to diff shop and get bearing replaced, only be a few hundred

[oscar]

did u say drop it into your house so u can fix it

Thanks man.

[steve]

drop it in to my place and i'll get my team on to it.


don't need it back before 2010?

[royce]

I will fix it for free


if you buy all the tools needed to do it and donate them to me

I can do you a deal on the dial guage and stand, but buggered if I know where to get the prelod checker from bar suzuki

[oscar]

ok steve i'll drop in in

in 2010

Hmm. so if its just the bearings u would recomend just getting them replaces. why would it be 300 or so.Labour intensive ah i just got a complete kit for me case for 115

[royce]

bearings arent dear but yeah setting the pinion is a bit time consuming cause you have to put it together, check it and pull it apart and re shim if its no good

though as it has been running it might be quicker to fix up

[oscar]

cool, hopfully the gears are ok

[oscar]

ok bad news, gears are stuffed aparently, so if he gets a wt front he will have two wt diffs to use BUT he has a lockright in the front.Iam guessing that it wont go in a wt diff or ami wrong

[royce]

who said and how do they know?

did they set em up and lap em or is it missing teeth?

if he only needs some gears, just go buy a 5.12 vitara front diff and pinch the gears and chuck the rest

if he has a lockrite in the front he will need a WT rear diff to swap it over, cant fit a locrite to a WT front

confused yet

[oscar]

nope understand.

he said it was major slopy after taking tail shaft off. then when he pulled the diff centre out it was missing teeth etc.

so ants rear still wont fit if u just use the gears

[royce]

nope vit front and rear are different size