Jump to content
HybridZ

Aftermarket Stub Axles


Z-Dreamer

Recommended Posts

Is anyone currently making aftermarket stub axles for 240-280Z's?

 

I've read many posts about custom/aftermarket half-shafts and CV's, but nothing on stub axles!

 

It seems that the stub axles are the last weak-link.

 

If there are none, who will step-up the plate and have some made. :D

 

Mark

Link to comment
Share on other sites

There are lots of machine shops that would be glad to make 280Z stub axles and companion flanges. They can even make them out of 4340 or some other high strength steel. Unfortunatly, there's no market to support the manufacture of those parts.

 

Don Potter used to buy new 280Z stub axles and companion flanges, radius, shoot peen, polish, and heat treat (basically blueprint) the parts and sell a complete set for $1,000.00. I know of no one ever breaking those special parts and the few that I know exist are hoarded by the owners. Don stopped doing it shortly before he fell ill because no one was buying them anymore.

 

A short run (20 sets) of stub axles and companion flanges made out of 4340 would probably cost at least $20,000.00 including design, machining, broaching, polishing, and heat treating. Anyone now willing to pay the same $1,000.00 per set that Don was charging?

Link to comment
Share on other sites

Moser engineering' date=' Dutchman Axles, there are a ton of em. Do a Google search.

 

Thing is most people just upgrade to the 280 and call it done. Have heard of CV's exploding, but can't recall someone breaking the 280 stubby.

 

Jon[/quote']

 

Well I've heard members on this site that have broken "all the above".

 

As for CV's, Porshe 930 CV's should handle anything 99.99% of HybridZ members can dish out!

 

Mark

Link to comment
Share on other sites

There are lots of machine shops that would be glad to make 280Z stub axles and companion flanges. They can even make them out of 4340 or some other high strength steel. Unfortunatly' date=' there's no market to support the manufacture of those parts.

 

Don Potter used to buy new 280Z stub axles and companion flanges, radius, shoot peen, polish, and heat treat (basically blueprint) the parts and sell a complete set for $1,000.00. I know of no one ever breaking those special parts and the few that I know exist are hoarded by the owners. Don stopped doing it shortly before he fell ill because no one was buying them anymore.

 

A short run (20 sets) of stub axles and companion flanges made out of 4340 would probably cost at least $20,000.00 including design, machining, broaching, polishing, and heat treating. Anyone now willing to pay the same $1,000.00 per set that Don was charging?[/quote']

 

Johnc,

 

How much do you think it would cost for a short run of say 50 to 100 sets?

 

If the cost for a bullit-proof set of stub axles could be kept to say under $500 then I could see buying a set and keeping the Datsun IRS.

 

Mark

Link to comment
Share on other sites

How much do you think it would cost for a short run of say 50 to 100 sets?

 

You'ld never sell 50 sets. Basically, there are 20, maybe 30, Z guys across the US that are willing to spend serious money on their cars to get that last bit of performance.

Link to comment
Share on other sites

Guest plainswolf

So if I run at 300-320 rear wheel torque with an auto tranny, and have an R200 posi and 930CV joints, I should be reliably OK for only occasional racing or just occasionally spinning around? seriously?

Link to comment
Share on other sites

Guest JAMIE T

You don't need porsche CV's for such a modest amount of power. There are guys who run consistantly in the 10's with LSD and stock ZX CV shafts.

Link to comment
Share on other sites

Guest GaryZ
You'ld never sell 50 sets. Basically, there are 20, maybe 30, Z guys across the US that are willing to spend serious money on their cars to get that last bit of performance

 

A shame, because as an active racer, I would be quite interested. $1000 seems reasonable considering the effort.

Link to comment
Share on other sites

I see this as MUCH more important than many other parts we HybridZers over-engineer. Jim Biondo actually had some VERY serious issues with stub axles and the housing for the stub axle deforming if memory serves me correctly... Pete Paraska can comment further on this.

 

As for $1000... I'd spend it in a second as long as we could be sure that the existing housing and race for the bearings could also withstand the additional loading... My car is expected to see 495#ft. of torque repeatedly. We also expect to run on sticky tires and for the car to be in the 2500# range. The torque is what kills them, so yea, I'd be very willing to buy some for $1000 a set...

 

Mike 8)

Link to comment
Share on other sites

One of our customers enjoyably sent this thread my way, good to see this interest, we have just recently been actively pursuing this ourselves for a few customers; if feasible we'll do production as per usual! We commented on this in another thread not so long ago.

 

At present no pricing to put forth; I'm working with one candidate manufacturer to narrow our specifications as we progress in the potential production process. I've given them several OE examples as part of our exercise.

Link to comment
Share on other sites

Excellent! Ross, you are on your way to being an icon in this community and beyond.... the work you put into developing specialty parts is greatly appreciated. Mark me down as interested as well.... probably this winter, once I am done reconditioning my shell.

Link to comment
Share on other sites

Thanks a LOT for the support guys, it goes a long way to making the long hours and efforts satisfying in a world where many just try and duplicate similar/knock parts off easy for a quick buck. We really enjoy our complete approach in working to offer very effective solutions and it's most rewarding when it goes full circle as without customer support and appreciation by running the parts the energy circle that keeps it going stops.

 

The custom stub axles will ease delivery of some of our other products as well :wink: This week all our pieces for the rear control arms are completed and are being fabricated for our second prototype that we plan to take to full production very shortly. First prototype had some learning experiences and we feel we've improved upon these to nail it with this setup, will see very shortly:)

Link to comment
Share on other sites

Guest GaryZ

I wish you the best Ross! We did some preliminary work with a local fabricator and the shalf/spline portion was no problem, but the flange and how to attach it killed off the project - cost wise.

 

Each time I take to the track I hold my breath on the hard downshifts (dog ring transmission) and lament the loss of NISMO racing parts - so you would be just "what the doctor ordered!"

 

gary

Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

×
×
  • Create New...