One of my rear bearing have started to go.
Was thinking of being lazy and pulling a whole axle from the wreckers.  Just want to make sure what axle I can use for a '99 Tracker.
All Sidekick/Trackers are to short right?
XL-7 have the a different spline count and are to thick.
So Tracker/Vitara/GV from '99 and up...Right.

I need a few other parts from the wreckers, so this seems a easier fix then putting on new bearings (assuming that I can find one with good bearings  )

That's too much work for a relatively easy bearing replacement need.  

See...
http://www.suzuki-forums.com/1g-1999-2005-vitara-grand-vitara/19396-has-ne1-here-pulled-rear-axle.html

And what if the junker rear is toast?  

Great info in that link - thanks for posting that.  I think I may be doing this project later in the summer.  Any idea how the front compares?  I think I have one front and one rear that need replacing.

Front bearing info...
http://www.suzuki-forums.com/1g-2001-2006-xl-7/31078-wheel-bearing-bad-can-i-fix.html

http://www.suzuki-forums.com/1g-1999-2005-vitara-grand-vitara/38531-2000-grand-vitara-ltd-bearing-replacement.html

Also, with regard to swapping out the entire rear from a donor...I see that you are 4WD, so differential gear ratios have to match whatever you have up front too.  

hey jay, just buy my whole tracker!  . . . .  only 100k on it and the body is still straight.

Also, with regard to swapping out the entire rear from a donor...I see that you are 4WD, so differential gear ratios have to match whatever you have up front too.  

Cuz has a press at work so everyone's right, I should just put new bearings in.
Ohh yeah, and update my little tag line (I've got a BL and 33" tires now with 5.13 gears. )

hey jay, just buy my whole tracker!  . . . .  only 100k on it and the body is still straight.

HMMMM...........................................no.
Wife would kill me. 
Would be tempeted if you wanted to buy my Smart Car, less then 75K km .

Thanks for the links.
I don't know how many inner seals I've replaced, but seeing the video made me take a REALY close look at the down loaded manual I have.
Wouldn't you know it, I'VE BEEN PUTTING THE SEALS BACKWARD!!!!!
Thanks again..