CV and Axle Cross Reference

[tom1394racing]

It is a Lobro at 108 mm with 6 bolts and is part of my Porsche stash. I assume it is the late 911 CV as labeled but I could be wrong.

[McLaren-TAG]

Since I didn't find it in when I searched for it yesterday, thought I'd tack it on to this thread.

When reassembling the bearing assembly, the thick portion of the inner should align with the thin portion of the outer flange flange. Not sure if there is an inside or outside portion to the outer flange, hopefully someone will chime in on that.

It's obvious to know when you didn't put it back together right as there will be no perpendicular axial movement. When assembled properly it should be able to more like your wrist.

[winders]

Originally Posted by McLaren-TAG

When reassembling the bearing assembly, the thick portion of the inner should align with the thick portion of the outer flange flange. Not sure if there is an inside or outside portion to the outer flange, hopefully someone will chime in on that.

It's obvious to know when you didn't put it back together right as there will be no perpendicular axial movement. When assembled properly it should be able to more like your wrist.

You have it backwards. The CV in the photo is assembled correctly.

[winders]

Here is a CV joint fresh out of the GKN box:

[winders]

The outer race of a CV joint has a grove around the outside. That goes toward the outside of the axle assembly.

The star (inner race) has a raised surface on one side. That goes toward the inside. The cage has an edge that is thicker on one side than it is on the other. The thicker edge goes to the outside.

[McLaren-TAG]

Originally Posted by winders

You have it backwards. The CV in the photo is assembled correctly.

Yeah thanks, what my brain though was not what the fingers typed... go figure. Corrected now.

[KTL]

Scott,

I have a set of '87 Carrera original axles on the shelf at home. I can measure the inner/transmission side CV joint if that would help confirm the dimension you're looking for?


Looking at some Porsche PET and printed parts reference info I have, the inboard CV joint for the 930.332.037.08 axle is a 911.332.923.01 Tom's listing is for the older 930 axle thru 1985 and actually the part number shown for the CV joint is incorrect. That CV joint should be 930.332.034.00

I think WorldPac is wrong in that they're either showing the wrong part number for their joint, or worse, putting the wrong joint on their axle?

[winders]

Kevin,

Through trial and error, I figured out what parts I need. It just took a while.

For example, the axles from GKN/WorldPac come with a boot flange that requires an older style boot: 901.332.293.12. All of the boot kits for what the axle is supposed to be come with the 928.332.293.02 boots. These boots are for a boot flange with a recess and the boots have a rib that fits in the recess.

Anyway, I know what to order now....

Scott

[brentrussell]

I seem to have a issue with a set of the Moon Plates I ordered... they are spaced at 47mm centers, part # 911.332.191.00 however my axles seem to be at 44mm centers.
1981 SC 915 Transmission.

Anyone able to offer any clues to this? have I ordered the wrong one.... can't find another part #, also checked on my pet file and part # is correct.

Thanks Brent

[tom1394racing]

The 100 mm 6 bolt CV's used from mid '75 through mid '85 did not use lock plates. The PET shows them but I have never seen lock plates on these CV's.

[brentrussell]

Thanks Tom,

That explains it, will install without lock plates.
Locktite, schor washers and torque them in.

Thanks again.

[DRACO A5OG]

Originally Posted by brentrussell

Thanks Tom,

That explains it, will install without lock plates.
Locktite, schor washers and torque them in.

Thanks again.

You could retro fit them with 993 PET# 993 349 191 00 locking plates Pelican Parts - European Automotive Parts and Accessories - Porsche • BMW • Mercedes • Volkswagen • Audi • Saab • Volvo • MINI
or even 100MM VW plates.


VW plates shown, you will need a little longer socket bolts to accommodate the space for the plate and lock washers. I would not recommend locktite unless it is light to medium strength.

Either way, recheck the bolts after 300-500 miles or maybe sooner to insure they have not come loose.

[tom1394racing]

I have updated this chart with some corrections an additions since my last time posting it.

[DRACO A5OG]

Sorry, but 75.5-85.5 the socket bolt is M8 vs 85.5-89.0 is M10

[T77911S]

Originally Posted by winders

The outer race of a CV joint has a grove around the outside. That goes toward the outside of the axle assembly.

The star (inner race) has a raised surface on one side. That goes toward the inside. The cage has an edge that is thicker on one side than it is on the other. The thicker edge goes to the outside.

nice.
I did not know that about the cage.
I had one bad joint that was due to a bearing sticking in the grove in the cage, at least that is all I found wrong. I had to grind the slot out ijn the cage so the bearing would not stick.
when I put that CV back together( yes I am reusing it) the center part would not move freely like it should. (part of why it went bad I suspect). I had to flip the center part around so it would move freely.IE, the grove on the outer part is now towards the inside but the center part is on the axle correctly.
if the cage was in backwards would that make it sticky or bind up?

cant believe I did 4 CV's and only one would have the cage wrong.
i was going to flip the bad one anyway and let the bearings ride on the "good" side of the outer race, just to see how it would wear.

[tom1394racing]

Originally Posted by DRACO A5OG

Sorry, but 75.5-85.5 the socket bolt is M8 vs 85.5-89.0 is M10

Yes that is correct.

I updated the chart once again.

[doswald]

Tom, thank you for your attention to this-very helpful!

dho

[philipp79]

I am not sure if the spline count for 64-68 SWB is correct in the tab. Isn't the spline count 25 for SWB? Could someone please verify?

I would need an eqivalent CV joint for my SWB...? Does anybody know which CV joint is compatible to SWB and available?

Thanks and regards

Philipp

[tom1394racing]

Phillip

You are correct. I just checked one. I have revised my chart. Thanks for your attention to detail.

[philipp79]

... and to complete the swb-chart... here is the porsche No. Cv only: 901-332-031-10
and the löbro number:C153100199001