Author Topic: stock birf beefup (Read 6989 times)

Birfailed · « **Reply #31 on:** Dec 31, 2008, 12:37:30 PM »

Thats a nice housing there

boggerunner · « **Reply #32 on:** Dec 31, 2008, 04:06:18 PM »

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

Birfailed · « **Reply #33 on:** Dec 31, 2008, 04:23:14 PM »

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 · « **Reply #34 on:** Dec 31, 2008, 05:06:08 PM »

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 · « **Reply #35 on:** Dec 31, 2008, 05:14:00 PM »

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

boggerunner · « **Reply #36 on:** Dec 31, 2008, 05:44:55 PM »

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

Birfailed · « **Reply #37 on:** Dec 31, 2008, 06:47:05 PM »

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 · « **Reply #38 on:** Jan 01, 2009, 11:55:00 AM »

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 · « **Reply #39 on:** Jan 01, 2009, 12:23:29 PM »

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 · « **Reply #40 on:** Jan 01, 2009, 12:30:34 PM »

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 · « **Reply #41 on:** Jan 01, 2009, 04:17:00 PM »

show us how it ends up...

boggerunner · « **Reply #42 on:** Jan 03, 2009, 09:37:31 PM »

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 · « **Reply #43 on:** Jan 03, 2009, 09:44:22 PM »

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

boggerunner · « **Reply #44 on:** Jan 03, 2009, 09:53:15 PM »

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 · « **Reply #45 on:** Jan 04, 2009, 04:30:13 PM »

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 · « **Reply #46 on:** Jan 04, 2009, 07:09:57 PM »

he has an excellent point

boggerunner · « **Reply #47 on:** Jan 05, 2009, 11:42:31 AM »

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 · « **Reply #48 on:** Jan 05, 2009, 12:43:35 PM »

Quote from: boggerunner on Jan 05, 2009, 11:42:31 AM

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 · « **Reply #49 on:** Jan 06, 2009, 09:48:50 AM »

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

Stinky · « **Reply #50 on:** Jan 06, 2009, 10:16:53 AM »

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 · « **Reply #51 on:** Jan 06, 2009, 07:19:32 PM »

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

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