4340 Chromolly D2 Rear Shafts

[Craigness]

Richard likes big hard shafts in his rear :rofl:

You fucking guyz....

The bottom line is that anything is better than stock. 4130 would be better and yes, anybody that would mill/roll whatever shafts like this as a one-off would cut the splines in a CNC lathe or turner. It's not bad as long as the scribes are sharp and the system lubricates the shaft with clean cutting oil.. You could always harden the shafts afterwards or if you want to go nuts, have them cryogenically corrected.

The bottom line is that it would come down to cost. If your going to be wheeling to the point that you bust a shaft, you better be able to afford new ones.

Why not a pro-rated program for psychos?

Sell them a pair of each and pro-rate the ones that brake for a year.

As for diamter, would'nt make sense to have the short one thicker to help even the weight between the two? If you have an even load distribution, you level out the weak point instead of shifting it to the weaker or lighter side. This assumes your locked of course.

If you could keep the cost down to around $100 per axle or even $175 per set, people would shut up and start testing.

You all should just start testing these things. Get some 38" fun country meats on a 5" lifted bitch and go out in the dry and pointy stuff and see what happens....

I bet you bust a U-joint before you pop a shaft.

 

[ChicagoDon]

If you could keep the cost down to around $100 per axle or even $175 per set, people would shut up and start testing.

You all should just start testing these things. Get some 38" fun country meats on a 5" lifted bitch and go out in the dry and pointy stuff and see what happens....

I bet you bust a U-joint before you pop a shaft.

Unpack the bowl and read what you just read.

 

[racerwad]

who could possibly make (for any make/model truck) 4130 axle shafts for $175? even chromo jeep axles are around $400 a pair.

 

[Craigness]

who could possibly make (for any make/model truck) 4130 axle shafts for $175? even chromo jeep axles are around $400 a pair.

How can you fucking guys tell that i'm high when i'm on dweb?

It's perscription goverment ganj. No laughing.

I know what the shit costs in stock. My buds (As in BUDDIES) own a metal fabricating business. If you make emough of them, you could get the cost down to the ground. These guys make things out of 4130 rolled for the transit athority and they are much more complex than this for less than $20 production costs each. I'm not saying to make 10,000 units, they dont make those kind of numbers but you can get the costs down in production and stock.

A lot of fabrication shops and CNC machines are pimped out for 2 additional 6-8 hour shifts after the main production is done for that day. Look at a company called SRP up in Mass. They are 5 guys who rent two spare offices at a CNC shop that in the 9-5 make race car shit. At night this small company rents 3 machines for $500 each per 6 hour shift and pumps out as much as they can.

They make bicycle parts.

 

[pwp]

How are you doing the splines? Cut or rolled?

They are being cut with a hob. You can see on one of the shafts where the hob started to touch the larger shoulder dia.

 

[rdoane]

ANy updates??

They got thrashed on this weekend at Gultches and did great.

 

[benlittle]

Interesting

 

[racerwad]

If you make emough of them, you could get the cost down to the ground. These guys make things out of 4130 rolled for the transit athority and they are much more complex than this for less than $20 production costs each.

i think you answered your own question. the volume simply wouldn't be there. in the case of the transit authority, they make so many that the tooling (which is the cost that is often highest and most easily adjusted) becomes amoritized more quickly. and, since the transit authority is probably a government agency, they probably released a request for proposal and your buddies placed the lowest bid, possibly undercutting themselves in the short term. regardless, the two models aren't really the same. that being said, if you think your buds could get the axles on the road for $175, i'm in

andy

ps-i wasn't the one that said you were high. pack away!

 

[D Chapman]

How can you fucking guys tell that i'm high when i'm on dweb?

It's perscription goverment ganj. No laughing.

I know what the shit costs in stock. My buds (As in BUDDIES) own a metal fabricating business. If you make emough of them, you could get the cost down to the ground. These guys make things out of 4130 rolled for the transit athority and they are much more complex than this for less than $20 production costs each. I'm not saying to make 10,000 units, they dont make those kind of numbers but you can get the costs down in production and stock.

A lot of fabrication shops and CNC machines are pimped out for 2 additional 6-8 hour shifts after the main production is done for that day. Look at a company called SRP up in Mass. They are 5 guys who rent two spare offices at a CNC shop that in the 9-5 make race car shit. At night this small company rents 3 machines for $500 each per 6 hour shift and pumps out as much as they can.

They make bicycle parts.

Well, we make bicycle parts, too. We've also got the Fastest CNC machine in the Valley and our machine rate is 55.00 an hour. That all boils down to about four (4) top crowns in an hour.

You stated that your boys pay $83.33 an hour to RENT a machine. How many axles to you think they can make in a 6 hour period? By the time you cut to length, true up, set tolerences, and get preped to even start hobbing slines - the day is almost over. So, if you have 500.00 in set-up already, is your landlord going to leave the machine set-up for you to return the next day for production? Even if so, how many axles can you make on rented equiptment in a 6 hour period? 12 to 15? On the high production end, you have 34.00 in the axle already. How much is 4130 per foot? 15 - 20.00? How many feet do you need for two axles? 6? So thats what, 90.00 in material?

So, there you go, $158.00 in a set of two axles and you have not purchased tooling or paid yourself....PLUS SET UP

Good luck with your endevor!

 

[pwp]

So, if you have 500.00 in set-up already, is your landlord going to leave the machine set-up for you to return the next day for production?!

Dan hit "kick in the pants" right on the head.
So everyday your going to do the same setup because the owner of the machine is using it for something else. So much for amortizing cost, which is the only thing that will bring your price down with qty.

Not too mention once your done, do you need to set the machine back up for what was originaly running by the owner ? I think Dans estimate of 12 - 15 per shift would be more like 4 - 6. Just dose not make sense.

Personally I would never even consider renting out any of my machines during down time, or unutilized shifts. I've never even heard of that done here in the midwest.

 

[D Chapman]

Personally I would never even consider renting out any of my machines during down time, or unutilized shifts. I've never even heard of that done here in the midwest.

I've never heard of it, either. Within 10 square miles, we have 7 machine shops. All seem to have more work than they can do. It's actually a bigger problem for these guys to find help...

 

[benlittle]

For me to get splines done locally it would be $850. :rofl:

Granted, that was one place but I'm guess not too many places can do it.

 

[rdoane]

For me to get splines done locally it would be $850. :rofl:

Granted, that was one place but I'm guess not too many places can do it.

$850 to get them cut?

Christ...I guess you don't want to know how much I paid total...

 

[nosivad_bor]

I also work in a Machine/Grind shop If I figured out a way to manufacture these axels in in a super efficient way I would not lower my price. It would spoil the market price, why make 50 bucks an axle when i could make 350 an axle ??

I dont understand what people have against paying enough money for a part so that the guy who made it can make a living. It's like retail is a bad word. If you can afford it eithe rmake your own or save up but dont be pissed when a company wants to make money. Now if you got a budy that hooked you up cause he has a shop , you should not expect that to be the price for everyone. In most cases your buddy let the shop absorb the cost.

 

[D Chapman]

For me to get splines done locally it would be $850. :rofl:

Granted, that was one place but I'm guess not too many places can do it.

Damn, Local guy here cut down 3 D-60 axles from my buddy. 75.00 set-up fee and ~60.00 per axle. But, this is all that guys does. Between the 4x4 community, hot rodders, racers, etc..... this guy stays busy!

 

[benlittle]

I also work in a Machine/Grind shop If I figured out a way to manufacture these axels in in a super efficient way I would not lower my price. It would spoil the market price, why make 50 bucks an axle when i could make 350 an axle ??

I dont understand what people have against paying enough money for a part so that the guy who made it can make a living. It's like retail is a bad word. If you can afford it eithe rmake your own or save up but dont be pissed when a company wants to make money. Now if you got a budy that hooked you up cause he has a shop , you should not expect that to be the price for everyone. In most cases your buddy let the shop absorb the cost.

I couldn't agree more.atriot:

 

[pwp]

It's actually a bigger problem for these guys to find help...

UGGGG :ack:

I have the same issues here ! Qualified help is non exsistant. It's funny how resumes have become fine works of fiction. Some of them very well written, even cozy up in bed with a good resume well written.

 

[Mongo]

you nailed it Rob...what's the problem with paying for quality work. It's why I stopped making cages for jeep's...to many idiots wanting it for nothing...

 

[benlittle]

Updates? How are these axles holding up?

 

[racerwad]

x2. are you actually going to make these axles or have you decided otherwise?

andy