Was in vendor section and bobby has photos of his new 4340 chromoly birfields that are 30 spline. I know Camo or whoever is going to check my IP :rolleyes:

Anywhoo, link here:
http://www.pirate4x4.com/forum/showthread.php?t=267952

http://www.pirate4x4.com/forum/attachment.php?attachmentid=138040

http://www.pirate4x4.com/forum/attachment.php?attachmentid=138041

Out of my price range (probably) but they do look nice! :cool2:

Ya, those are nice for $635.00 for all 4 pieces delivered right to your door. :(

IMO, great deal....normal 4340 inners are $250 a pair, Birfs are $120-160 each...

worst case ($160 x 2) + $250 = $570...for another $65 you get the "top" option available...my guess is, that's a nearly-unbreakable option, even for competitors...

however, as noted by many others, you have now pushed your weak point elsewhere, on a Cruiser, odds are it's the 6 lockout studs.

Wonder if he is going to make them for 80 series? I'm guessing those would be hard enough to run in a fulltime system. There are a lot of 80s running around with birfields that are beginning to wear out. The fulltime system is hard on them. With their bigger size they aren't as common as a break as a 40, but they physically wear out gettting a groove in the center. OEM is really spendy! There is a need for good aftermarket 80 birfs!!

He said 40's and 60's and mini trucks of course, no 80's! :(

IMO, great deal....normal 4340 inners are $250 a pair, Birfs are $120-160 each...

worst case ($160 x 2) + $250 = $570...for another $65 you get the "top" option available...my guess is, that's a nearly-unbreakable option, even for competitors...

however, as noted by many others, you have now pushed your weak point elsewhere, on a Cruiser, odds are it's the 6 lockout studs.

Then it's time for some 8740 chromo studs:

http://www.pirate4x4.com/forum/showthread.php?t=243154&highlight=studs

And adding 4 more dowels:

http://www.pirate4x4.com/forum/showthread.php?t=233101&highlight=hub%2A

Then I would think the r&p would be the weak link, right?

very nice.... notice how they do not neck down at the splines (prime breaking point).
very nice.

:eek:

Wow.. That's some MAJOR bling!!!

Boy those are pretty. Isn't there a potential of rapid wear in full time rigs with the softened birfs anyway? Can these be converted to part time economically? I know nothing about newer L/Cs, obviously!

Kent

Boy those are pretty. Isn't there a potential of rapid wear in full time rigs with the softened birfs anyway? Can these be converted to part time economically? I know nothing about newer L/Cs, obviously!

Kent
the fulltime rigs are the 80 and 100 series, and these are for the 62-60-55-45-40 series stuff....

however, given that they are NOT a softened product, they should have less chance of wear issues than other Longfield/etc products.

man I love options! Gotta get to breaking stuff so I can buy more! Let's all hope for another birf price war! We now have, Smurfs, longs, profields, newfields, marfields?(can't remember the name) and soon to come Pigfields.. This is awesome!
And inners we have options also!

He said 40's and 60's and mini trucks of course, no 80's! :(


80's yes there next any one have a old one to send me? :)

80's yes there next any one have a old one to send me? :)

Are you asking for an 80 birf or axles?
Butch

80's yes there next any one have a old one to send me? :)

Christo Slee, christo@SleeOffroad.com....bet he's got a pile of them.... and most aren't broke...lol

80's yes there next any one have a old one to send me? :)

I've got a couple different size 80 birfs (ABS, non) that I could send up to you.

kurt@cruiseroutfitters.com

I think you will have a great repsonse with the 80 series crowd.... i would buy a set... especially since the price of OEM 80 birfs is the only replacement option and that is spendy when it is not an upgrade..... BTW.... BLING BLING BLING

Who is testing these? I want to run 40's and was going to by a dana 60. Any guesses on if these will hold up to a 350, th350, atlas and 40's?

I think you will have a great repsonse with the 80 series crowd.... i would buy a set... especially since the price of OEM 80 birfs is the only replacement option and that is spendy when it is not an upgrade..... BTW.... BLING BLING BLING

If the 80 thing happens, use the later (94+) ABS birfields as the model. I'm in for a set and already a satisified customer of the 2nd generation Longfields in my FJ40. Very, very, nice.

This is a cool product, and I think it's time has come.
I would LOVe to get this setup for my axle,

But I noticed something about these things that is :rainbow:

The fawking birfield inner snapring...

'4- The inner axle is also made from 4340 chromoly. It is now 30 splines at
both ends. We also eliminated the big snap ring groove. No martack
need, these inners will come with the c-clip in place on the very end of
the axle that snaps into the Longfield. This c-clip snaps inside the race
to prevent the inner axle from sliding either direction..'

I messed with that inner snapring on my truck for over 2 hours this evening, and I couldn't get it to compress enough to go into the birfield. So I decided to wait overnight to finish this project, and had my inner shaft martacked.

Did I mention I hate that inner snapring?

I do.

SOrry if I am the wet blanket in the party. But that inner snapring is almost as bad as a broken birfield....

hose clamp....snug it over the snapring until it's compressed in the groove, begin to tap the birf on and the hose clamp will slide clear...

piece of cake.

Who is testing these? I want to run 40's and was going to by a dana 60. Any guesses on if these will hold up to a 350, th350, atlas and 40's?

He said 30 spline not 35 spline, so no it won't hold up. Yes It will hold up longer than the original birfs.

This is a great start in the right direction. It would be nice to see ARB do like they did with the D30 and offer a larger spline locker. If they would bump the locker up to 32(?) or 35 spline to work with a kit like this that then also sports the larger end for the differential, this set up would be a no brainer IMO. I just cringe at the possibility of the inner axel snapping off in the locker since both ends on this set up are the same size. I look forward to hearing some real world testing results on this set up. For the $$ it looks like a great deal. It looks like a great way to go as long as the inner axel survives at the locker.

Personally if I ran this set up I would make sure my front drive shaft was built out of typical thin wall tube. This would put the braking fuse in an area that is easy to swap out on the trail. Then just carry a spare or two.

Mark

Be alot more affordable than converting to Dana axles (which I still haven't ruled out yet. Not until I find out how much this guy can get 'em for).

Man this crap is making me really lean towards keeping my toy axles...

Be alot more affordable than converting to Dana axles (which I still haven't ruled out yet. Not until I find out how much this guy can get 'em for).

Man this crap is making me really lean towards keeping my toy axles...


Yes this will be cheeper and you can keep your smaller housing and be just as strong as a 60. :D

Yes this will be cheeper and you can keep your smaller housing and be just as strong as a 60. :D

Just one question, why did you keep the birfield INNER clip?

Just one question, why did you keep the birfield INNER clip?

maybe this is a stupid question, but why not?

maybe this is a stupid question, but why not?

The clip is a Major PITA, and with a martack, it is completely unnecessary.

Just one question, why did you keep the birfield INNER clip?

This is the only way to keep the inner axle from going in an out with no martack need. :)

bobby, read this thread....much better plan for eliminating c-clips....

http://www.pirate4x4.com/forum/showthread.php?s=&threadid=142653

bobby, read this thread....much better plan for eliminating c-clips....

http://www.pirate4x4.com/forum/showthread.php?s=&threadid=142653

Yes that will work to keep the inner axle from walking into the birf, but what keeps the inner axle from going out of the birf into the locker an from walking pass the seal area. Then you would only have about half the splines in the bir
f??

Well that inner axle you can always martack it.

Well, I was going to sell my old cruiser axles, but I just might hold on to them now.

i was thinking a sleeve on both ends....is that possible?

i just broke one of my longs and replacing it was nice with the inner clip so i did not have to deal with martacking anything but the key is to have extra inner clips

O.k. the cats out of the bag! The prototype inner race is 4340 but the final product inner race is made of 300M and will be longer. Yes, the inner cage and race is a patented design. The price will not change it is still at $635.00 a set, all 4 pieces. We feel this will be the strongest birfield on the PLANET! I want to design something for you guys that we can beat on with our eyes closed. :)

Bobby, please tell me you can put longer splines for the factory locker?

Dave

Bobby, please tell me you can put longer splines for the factory locker?

Dave
I don't understand the question. These will work fine for the factory locker. Do you mean for the electric locker? No, we don't make them for the electric locker.

Eta?

Pretty exciting stuff. Especially after wasting my $ on newfs for my 80.

Bobby showed & telled these at the McGrew run this last weekend & while I can't speak to how they'll test out, I can say that the attention to quality was obvious. Thanks for bringin them along Bobby (too bad I just bought your other ones & will have to wait for breakage :( )

I don't understand the question. These will work fine for the factory locker. Do you mean for the electric locker? No, we don't make them for the electric locker.

Yes, I mean the factory electric or cable locker. I'm not talking about the front 80 series locker though. Any way I can get them with long splines?

Dave

Yes, I mean the factory electric or cable locker. I'm not talking about the front 80 series locker though. Any way I can get them with long splines?

Dave


Sorry we only do stock short splines for now.

Bobby, you have polished the "Birfield Turd" to a gleam that I would never have expected :beer: