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-   -   Rebuilt 95 FZJ80 Birfields (http://www.risingsun4x4club.org/forum2/showthread.php?t=15169)

MountainGoat 02-25-2011 08:55 PM

Rebuilt 95 FZJ80 Birfields
 
This is a follow up to my recent Birfield Quandary thread.

Dropped off my birfs at CVJ Axles, Inc. yesterday for rebuilding. I asked them NOT to pack grease in them, because I wanted to use a particular grease when I reinstalled them. Of course I also wanted to take a look at them without having to remove all that grease, too! They called at 9 am today and told me they were ready. When I picked them up they were not packed, as per my request. I was however a bit taken aback because they obviously weren't my original housings. There were none of the heat treating or burn marks that the OEMs had on them. It also appeared to me that the bowls were a bit shallower than my originals were. I didn't take that particular measurement before I gave them mine, so I can't verify that. I did, however, measure them for total length and for spline length and they were exactly right for a 95 FZJ80. I took some other measurements on my old ones as well and checked the new ones. All the measurements are pretty much the same. Ball size, housing thickness in the ball grooves and between them, and inside diameter from the bottom of one ball groove to the bottom of the one opposite.

Here are pictures of my old birfs with 260k miles on them:

The driver's side cage and star were pretty much seized together. Lots of big chips, scoring and hammering. I couldn't get them apart and the star would barely move inside the cage:

http://www.risingsun4x4club.org/uplo...s/IMG_7127.jpg

Horizontal grooves in the ball slot:
http://www.risingsun4x4club.org/uplo...s/IMG_7129.jpg

Scoring and chipping on the star. Notice the groove where the ball rides to the left:
http://www.risingsun4x4club.org/uplo...s/IMG_7131.jpg

More chips on the cage:
http://www.risingsun4x4club.org/uplo...s/IMG_7135.jpg

The old housing:
http://www.risingsun4x4club.org/uplo...s/IMG_7138.jpg

The rebuilt birf:
http://www.risingsun4x4club.org/uplo...s/IMG_7146.jpg

http://www.risingsun4x4club.org/uplo...s/IMG_7147.jpg

I took out 2 of the balls so I could see the grooves, cage and star. They all look virtually brand new. There are some surface marks, mostly they are from what feels like graphite that I think they used to lubricate it enough to get it together. Note the lack of chipping, grooves or hammering:
http://www.risingsun4x4club.org/uplo...s/IMG_7152.jpg

http://www.risingsun4x4club.org/uplo...s/IMG_7153.jpg

http://www.risingsun4x4club.org/uplo...s/IMG_7154.jpg

http://www.risingsun4x4club.org/uplo...s/IMG_7155.jpg

The outside of the housing has machine ridges on it, not smooth like the OEM:
http://www.risingsun4x4club.org/uplo...s/IMG_7156.jpg

I would have pulled all the balls out and split the cage and star but frankly they were much tighter than my old ones and I didn't want to beat them to death. I put my short side axle in one and it fit. The joint moves smoothly with no play. Feels tight like I would guess a new one would.

Tomorrow we install them. Assuming everything fits I should be back on the road! BTW these cost $149 each.

ajax 02-25-2011 10:05 PM

sweet hope they work out for you!

60wag 02-26-2011 06:16 AM

It looks more like a replacement birf than a rebuilt. What did they reuse from the old one?

SteveH 02-26-2011 07:06 AM

Excellent (very excellent) photos - thanks!

MountainGoat 02-26-2011 07:38 AM

Quote:

Originally Posted by 60wag (Post 176780)
It looks more like a replacement birf than a rebuilt. What did they reuse from the old one?

Apparently nothing. You saw the pictures - the only part of the old ones that could possibly have been salvaged was the housing, provided the grooves were somehow removed. The balls are the same size, so I suppose they could have used my old balls. :hill:

MountainGoat 02-26-2011 06:03 PM

Well they are in. All buttoned up. Took it for a test drive and they didn't click, rattle or grind. The clock starts at 266,246 on the odo. We will see how they do.

Am I tired? Yep. Time for a :beer:.

Thanks for helping me get this job done Martin. I owe you big time now!

:hill:

MDH33 02-26-2011 06:28 PM

Quote:

Originally Posted by MountainGoat (Post 176809)
Well they are in. All buttoned up. Took it for a test drive and they didn't click, rattle or grind. The clock starts at 266,246 on the odo. We will see how they do.

Am I tired? Yep. Time for a :beer:.

Thanks for helping me get this job done Martin. I owe you big time now!

:hill:

Cool! Glad it ran well, sorry I couldn't hang for the test run. No problem on lending a hand. :thumb:


Man, this really makes me want Spring to arrive. Looking forward to getting out in the 40 and Cruise Moab! :cool:

Hulk 02-27-2011 01:06 AM

Wow, great deal. They really treated you right!!

Dr. Schlegs 03-21-2011 08:11 PM

What is the word on those rebuilt birfs? I'm finding myself needing to fix my clicking front end. I have been looking at all the avenues that you have explored and not overly impressed by the options. Toyota :birf: too spendy, Ebay:birf: seems like a waste of time and money. Longfields will not work on the fulltime 4wheel drive. CV unlimited seems possible, but why are they so cheap? Used :birf: worth while is few and far between.

:whiteflag:

I have a headache from searching the web.

nakman 03-21-2011 08:15 PM

Schlegs you asked for my opinion, I think you should try these. Or try swapping yours left to right first, then see if the clicking goes away. But it depends on how often you like going in there.. if you don't want to pop spindles for another couple years then I'd go down the same path Dan did here..


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