Printable Version of Topic

Posted by: bbrock Oct 4 2018, 07:21 AM

I just plugged the OEM CV joint part # into Sunset Porsche's web site and got a hit ($73.64). So these are available again?

https://www.sunsetporscheparts.com/oem-parts/porsche-splined-joint-91433202903

EDIT: Don't Order these! What you get are 25-spline joints which appears to be the part for a 914-6. They won't fit on /4 axles. For more detail, see http://www.914world.com/bbs2/index.php?s=&showtopic=336979&view=findpost&p=2698908

Posted by: bdstone914 Oct 4 2018, 07:29 AM

Call them or any Porsche dealer and ask. They are linked to the worldwide inventory. Porsche parts number stay forever as a lookup number. No assurance of availability. Let us know. The complete axles have been available.

Posted by: 914Sixer Oct 4 2018, 07:30 AM

I think complete axles are only available.

Posted by: bbrock Oct 4 2018, 08:06 AM

Didn't see a phone number but sent an email. They've been very responsive by email in the past so we'll see what they say. They've also been pretty good about listing NLA items as such in the past so I'm cautiously optimistic. I also thought only complete axle assemblies were available which never made sense why joints weren't offered since they had to be getting the joints from somewhere.

I'll let you know if I hear anything from Sunset.

Posted by: Gulf91474 Oct 4 2018, 11:04 AM

Call PMB ..............

Posted by: cuddy_k Oct 4 2018, 12:09 PM

I bought new, complete drive shaft setups from Jim Ellis Porsche in 2016.

Part 91433200903

They were $ 280.60 ea back then, but I see them listed as 742.20 now.

EDIT: suncoast porsche has em for $ 684.21
https://www.sunsetporscheparts.com/oem-parts/porsche-driveshaft-91433200903

I wonder why the price tripled...are they NLA again? WTF!!

Posted by: bretth Oct 4 2018, 12:19 PM

WTF? $700 bucks now? At that price they better be able to handle 500hp+. I sure hope CVs are now available separately.

Posted by: dr914@autoatlanta.com Oct 4 2018, 01:01 PM

we get a download from Porsche once a month of their price list with many many parts that are priced, but when you order they say that they have been discontinued.
No cv joints we have the cv joints and axles rebuilt by a very reputable guy and have never had a problem, even the old original 914-6 cv joints!

Posted by: JoeD Oct 4 2018, 06:34 PM

Same - bought a set 2 years ago from Jim Ellis and it cost me just at $600 for both axles and CVS, fully assembled. They even came greased.

Posted by: North Coast Jim Oct 4 2018, 06:52 PM

I bought two new complete axles and CV joints from Porsche North Ohmstead, Oh for IIRC $275 each. They are available. Buy the complete axle and have piece of mind.

Posted by: 914_7T3 Oct 4 2018, 10:42 PM

Call the Beaverton Porsche main # and ask for Luke in parts. They separate out the wholesale parts business as online only under the Sunset Porsche Parts Name.

Posted by: Chris914n6 Oct 5 2018, 12:21 AM

The Gaudin Porsche website quoted me a shipping cost of $10, so I'm assuming it's flagged as available somewhere in the US.

Posted by: Matty900 Oct 5 2018, 11:22 PM

I purchased the new half shafts from Sunset. After about 1,700 miles we noticed that there was all kinds of grease coming out of them. Now that Eric Shae/ PMB has new ones, I would recommend calling Eric first.

Posted by: bbrock Oct 11 2018, 11:52 AM

Sunset got back to me about the joints. They are available but are shipped from Germany (3-5 weeks). This means there is a competitive option to buying Type I joints that need modification.

For complete axle's, Eric's already modded and ready to bolt in Type I assemblies win hands down at less than half the current price of OEM axles.

It's nice to have options

Posted by: 914sgofast2 Oct 11 2018, 02:43 PM

Can anyone explain, or does any one know, why the Type 1 Bug and Porsche 944 CV joints have 6 bolts holding the CV joint to the flanges (without any roll pins) while the 914 CV joints only use 4 bolts and 2 roll pins?

Posted by: 90quattrocoupe Oct 11 2018, 09:02 PM

As a follow up to this, has anyone drilled out the holes for the roll pins, and used a bolt?

Greg W.

Posted by: brant Oct 12 2018, 11:14 AM

just one person's experience

I put new type 1 joints (x4) on the racecar.
granted it might be an extreme environment
but with limited hours of use... 20?
I noticed much more wear than original joints

so this could be due to my application
but I am also harboring the belief that the type 1 (modified) joints do not hold up nearly as well as original specification joints used to.

I'm not a fan
I'm going to upgrade to 944 CV's and add real weight to the racecar in exchange for longevity.... and I hate adding weight!

Posted by: 914_teener Oct 12 2018, 02:16 PM

I have the same opinion after about 4 years since replacement. MAYBE 10k Miles on them?

I haven't inspected them yet....just a mess I'd not get into at the moment.

Posted by: Olympic 914 Oct 13 2018, 02:31 PM

Ran in to this problem also. grease thrown up on the underside of the trunk. just cleaned it off again. This winter I will clean them off good and put a bead of RTV on them and see how that works.

Posted by: 914sgofast2 Oct 13 2018, 03:02 PM

Anyone have any insight into the original question about why 914 CV’s have 2 roll pins while the CV’s on 944’s snd Bugs don’t?

Posted by: 914Sixer Oct 14 2018, 11:31 AM

Originally the early 911 CV's had 6 bolts. Then they changed to 4 and 2 roll pins on the large 108 stub axle. When they switched back to the 100mm axle they went to 6 8mm bolts. After that they went back to the larger 108 again with 6 10mm bolts. My guess is the extra clamping force is need from the 6 bolt application. The VW Thing, 411/412 and VW bus all used 6 bolt 8mm bolts. They all used 100mm CV's with different angles of departure.

For more information go to Blind Chicken Racing CV Joints 101

Posted by: bbrock Dec 4 2018, 08:09 PM

Bloody hell!!! I just went to pull the trigger on a pair of cv joints on the Sunset Porsche site and now those joints are listed at $150 apiece. Two months ago they were listed at $75.

Posted by: 914_teener Dec 4 2018, 08:20 PM

No comment. Clay will give me a time out.

Wait till next year.

Posted by: mb911 Dec 5 2018, 06:54 AM

I have decided I am just going to use lobro type 1 CVS and just machine the gasket area .. It will be pretty straight forward and fairly inexpensive..

Posted by: bbrock Dec 5 2018, 08:49 AM

That's what I'm going to do now too, but as of two months ago, it would have been cheaper just to get the correct joint. I just don't understand what kind of games they are playing with these joints that are clearly still being made but they don't want to share.

Posted by: ChrisFoley Dec 5 2018, 09:12 AM

I stopped offering modified Type 1 CVs precisely because of the availability of Porsche 914 axles and CVs. Now that they've skyrocketed in price I may have to reconsider.

Posted by: bbrock Dec 5 2018, 09:17 AM

I'd be down for a pair of joints.

Posted by: 76-914 Dec 5 2018, 10:34 AM

@http://www.914world.com/bbs2/index.php?showuser=19 teener are those the ones I. sold you when I converted to Subaru? If so, they didn't have more than 600 miles on them, IIRC.

Posted by: mb911 Dec 5 2018, 11:22 AM

@http://www.914world.com/bbs2/index.php?showuser=20845 the type 1 one joints are about $45 each..

Posted by: bbrock Dec 5 2018, 11:34 AM

I guess I was comparing the Genuine joints with the Lobro kits that include boots, bolts and other goodies; and then factoring in additional machining costs. Not exactly apples to apples comparison.

Posted by: ChrisFoley Dec 5 2018, 11:52 AM

I was selling the modified Lobro T1 units (with boot, gasket & installation hardware) for $110 each, so not all that cheap compared with new 914 ones @ $150.
Quite a bit of work goes into making them fully compatible & easy to use.

Posted by: 914_teener Dec 5 2018, 12:00 PM

Yes they are. I haven't inspected them yet. I may though if I keep the car for now.

Have a spare trans and I may swap it in if I don't sell the car and I'll do it then.

I've probably put those miles on them Kent since I got them from you. I'll assume they were Lobro's?

One thing for sure with the type 1's I've experienced is they will sling grease if you don't have the gasket recess that Foley used to sell. It is a real pain but I got mine to finally seal with some high temp silly cone. I had to clean the faces really well and when you bolt up the joint it is near impossible to keep the joint and the flange grease free when installing them.

AND if you use the gasket without the recess the bolts will back out.

So if I'd to go that way again I'd definitely get a set with the recess.

My two cents.

Posted by: bbrock Jan 2 2019, 12:49 PM

Now the price for Genuine Porsche is down to $134. Are these things tied to pork belly futures?

Posted by: Mark Henry Jan 2 2019, 01:23 PM

BTDT
Not quite that easy, the CV material is hard as hell. Might be easier to send it to a crank grinder and have them grind the recess in.

Posted by: mb911 Jan 2 2019, 01:25 PM

Sales would be my guess.. I am going to machine some of the Lobro type 1 in the next week or so.. Plan on using the 2 914 ones that I have that are good and the 2 lobro ones in the less stress area.. Now where would the least stress area be?? Ultimately I am sure I will end up with something else but for now this will be the best solution.

Posted by: worn Jan 2 2019, 02:32 PM

Yes. Yes, that is how they are priced.

Posted by: 76-914 Jan 2 2019, 02:33 PM

Sorry Rob, I missed this earlier. Yes they are Lobro.

Posted by: ChrisFoley Jan 2 2019, 02:45 PM

A sharp carbide tool bit will cut them just fine. The body is only moderately hard, and the ball track area is flame hardened.

Posted by: rgalla9146 Jan 3 2019, 01:34 PM

Today I assembled driveshafts with four of the modified Type 1 joints that Chris
marketed in the past.
The modifications were done beautifully. They're going in my project car with a
fresh 2.0 6 cyl.
I hope the reports of early wear prove wrong.
Has anyone ordered or purchased the available 914 6 assemblies ?

Posted by: dr914@autoatlanta.com Jan 3 2019, 02:27 PM

we are very lucky to have stripped so many 914s in years past that we have many many many many cvs that we can rebuild, so make them into ready to install axle assemblies. Makes it easy and non greasy for the mechanics

Posted by: 914_teener Jan 3 2019, 03:41 PM

I don't know if there is any "early" wear or not. I haven't taken them apart yet.

I can only report that without the recess of the gasket they will sling grease without sealing them really well.

I could be that the "early" wear is caused by the grease being slung out....causing early wear.

Since you have a set by Chris with the recess....should be good to go...don't look back and drive it like you stole it.

Posted by: brant Jan 3 2019, 05:37 PM

I’m having early wear out
Not a grease problem
Machined
Sealed
And twice vw the wear of stock in a hard use situation (so far)
Fresh grease frequently

Posted by: 914_teener Jan 3 2019, 06:56 PM

Now I'm curious....I hate re-greasing those things but this has peaked my interest.

I probably don't have more than 6K miles on those things, no track time but spirited driving.

Posted by: rgalla9146 Jan 4 2019, 03:57 PM

I just learned something interesting.
I have a 914 6 CV that's missing it's balls. (no rude comments please)
So why not substitute some from a new modified Type 1 that I have on hand ?
Cheap fix right ?
Guess what ?.... the balls are bigger... and not in the direction that you'd guess.
The balls in a VW CV are 17.44mm diameter.
In the 914 6 they're 15.84
I'm no engineer but that doesn't seem right.
You'll be comforted to know that 914 and 914 6 CVs have the same size balls.




Attached thumbnail(s)

Posted by: mepstein Jan 4 2019, 07:10 PM

I’m no bearing expert but smaller might mean more of them and thus more contact area on the race. At least it works that way with bikes.