stock birf beefup

[Duffil]

[Birfailed]

Thats a nice housing there 

[boggerunner]

yes it is, thanks, but imma fix the knuckle ball gussets, u didnt clearence them enough for the seals

[Birfailed]

yeah things are garbage imo, I think they could of been redesigned rather than have to grind them half down right out of the box

[boggerunner]

yep, i wanted to pick up my 3rd tonight, but i cant get ahold of kevin, he must of got called back to work?

[Birfailed]

maybe, Jason is still out fracin, and tomorrow they gotta go move trucks around

[boggerunner]

when do u go back to work?
and update the avatar pic to a 1 ton pic

[Birfailed]

gotta be back the 2nd.  i've tried to update it, somethin about the computer doesn't like it, won't let me do it and i'm too lazy to resize pics

[yota-tota]

I really want to see how these turn out, i got spares that i want to get done as well. So when your welding around the bottom of the bell do you close up the holes for the large balls a bit? Like to add more material in those 6 sections? Or just on the outter lip?

Oh and does anyone know what type of cryo treament is needed if i went to a local heat treat company just for a price idea? Like is there a rockwell hardness number or somthing to go by?

[Birfailed]

when I sent things off it was cryod to -350F and then heated to a number I forgot.  They don't go by a rockwell hardness or anything, just how long it takes by size

[yota-tota]

Right on, I'll have to ask them about it i guess. They might know if i tell them it was cyro'd to -350F.

[Bazzi]

show us how it ends up...

[boggerunner]

i finally got the 4runner in the garage and tore down the old 85 axle, and got it pulled out.  i also clearencer the knuckle ball gussets. but thats all for tonight, tomorrow im gonna go to a friends house and use a 220 mig welder to put a nice fat bead on these birfs.  im only gonna beefup 3 of the 5 ive got.  i should nave it done and ready for a test run by 3 or 4 tomorrow night

[Duffil]

sweet. I expect to see a 21 road update by tomorrow night then.

[boggerunner]

if i can get eric or dan to come with, i might, but it might be a solo trip out to 29 road desert

[Stinky]

big ring little ring...high strength...cryo this, cryo that... i think yall are overlooking the most important metallurgical factor...

how do you plan on welding case hardened machine steel, and expect no surface fractures???

cuz last time i checked, a bearing race is full of nickel, molybdenum, silicone and other friction inhibiting alloys..... that are designed for wear resistance, not strength, since races are pressed inside whatever their supposed to fit inside so it takes the pressure and the race provides mobility with the least amount of resistance....

machined case hardened parts such as axleshafts, BIRFIELDS, ring gears, spiders, pinions, transmission parts... they all carry some or most of those friction inhibiting alloys, the the case hardening makes them stronger, but soooo brittle, its unreal....and when you weld case hardened , you create a metric ton of stress fractures, some not even visible to the naked eye, that when stressed, haha ill pass on the involvement of that...

and when all that extra in the knuckle ball comes apart, start looking for another housing... just lettin ya in on a different point of view....

[TIMS89CRAWLER]

he has an excellent point 

[boggerunner]

i couldnt get access to a 220 mig so i tried it with my 110, didnt wok for , so i just put some stock birfs in. mabey with my tax return i will get some um05's. 

[Stinky]

i couldnt get access to a 220 mig so i tried it with my 110, didnt wok for , so i just put some stock birfs in. mabey with my tax return i will get some um05's. 

thats b/c the metal is impregnated with oil/grease....you'll have to bring the metal to a temperature of 750-850 degrees for an extended period of time to get the petroleum out of it....then cool it of slow as hell, then weld it...which is right around when 3 posts up will occur....

[boggerunner]

yet this has been done before and is working great for a few people out there still running these

[Stinky]

i never said it couldnt be done, im just lettin you know what you're actually doing to the metal... i wouldnt run it, doesnt seem worth it to me, IMHO, sell your spares and get longs, and then your problems ALMOST go away... and at least you have a warranty...

and ya, youre only runnin a 22re n 36s, but duals and the weight of the runner effect drivetrain stress more than you think...

take a lot of close up pics of em when you weld them, im kind of interested in this.... and whats the part number on the bearing race...  curiosity strikes

[boggerunner]

i didnt end up using the race, and i gave up on welding anything, just running stock for now