Porsche 944 axles and 944 CV's for Vanagons

[crazyvwvanman]

In order to keep the twisting forces oriented the same, the used axle needs to stay on the same side of the vehicle. Swapping ends doesn't change this. If you move the axle over to the other side of the tranny it will reverse the twist. Swapping ends doesn't change this either.

Mark

[ALIKA T3]

Thanks Mark
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[r.e.wing_fc3s]

do these 944 cv's have increased travel over the stock axles or just increased angle?
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Reference Automotive: NW Washingtons Vanagon Specialist. (360)366-6965. referenceautomotive.com

[Jon_slider]

> do these 944 cv's have increased travel over the stock axles or just increased angle?

IF your shocks allow increased down travel, your axles will be at a higher angle at full droop, in which case you might want a CV capable of operating at a higher angle.

I chose to use a CV with greater than the maximum 17 degree operating angle of stock CV's because at maximum droop, my axles are at 19 degrees. My fox shocks front and rear, allow an extra inch of droop.

The 944 CV is rated for a max angle of 22 degrees.

I now have 3000+ miles on the 944 axles and 944 CVs on the rear of my van. They are working great, no problems of any kind. I have been offroad and have locked my axles on the fly when going up hills, and I have even yanked other vans out of the sand.

I have stock front axles and CVs, they are also working great. My syncro weighs over 5000 lbs and the TDi motor has over 200ft lbs of torque. My front ride height currently is 20", my rear ride height is 21"

I use Swepco 210 in my transaxle, and in my front differential, which has a solid shaft, no Viscous Coupling. The van has a decoupler as well as front and rear lockers.
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My Soapboxes: Inflation; Handling; Gearing; Decoupling; Swepco

[insyncro]

I'm running 944 CVs front and rear on a Syncro that is not lifted from stock.
Many, many miles without issue.
I have tested these same axles on my lifted Syncros and they work great, no issues to report.

[r39o]

[Jon_slider]

> Are you using current new kits

yes, brand new Lobro 944 CV's
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My Soapboxes: Inflation; Handling; Gearing; Decoupling; Swepco

[Captain Pike]

They work on a 181 too.
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LEARN TO SELF RESCUE
59 Panel bus, 1966 Single cab. 73' 181. 73 Westy. 91' H6 Vanagon 3.3L.
.....................All Current.......................

[r39o]

[insyncro]

[r.e.wing_fc3s]

so ill ask again anyone know if the 944 axles have increased travel i.e. in/out distance. compared to stock/930/thing/type 4. i am aware of the angle differences. id like to not have to uses limiting straps. the axles i have achive the angle i need but they need more extension at full droop to not be the limiting factor.
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Reference Automotive: NW Washingtons Vanagon Specialist. (360)366-6965. referenceautomotive.com

[Captain Pike]

Go get a set and see if they tear out. Then post your results. Go Kirk on this one. Where no man has gone before......
_________________
LEARN TO SELF RESCUE
59 Panel bus, 1966 Single cab. 73' 181. 73 Westy. 91' H6 Vanagon 3.3L.
.....................All Current.......................

[Jon_slider]

> they need more extension at full droop

never heard of anyone talking about CV joint travel the way you are

but the 930CV body is thicker, so I would guess it has more plunge than the 944 which is narrow similar to the stock CV joint

I believe if your CV joints are the limiting factor, there is a problem with your shock travel being excessive, for which limiting straps would be the cure

what shocks and springs are you using, and did you modify the shock mount to increase extension, thereby creating your bind on the CV joint?

Let us know what caused your CVs to bind, and how you fix it
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My Soapboxes: Inflation; Handling; Gearing; Decoupling; Swepco

[Jon_slider]

This carnage report just in from Mogfest

930 Axle and CV fails to break, instead forces transfered to differential, breaking the output shaft.

A spare 930 axle could not be bolted in place as the repair involves the Transaxle.
http://www.thesamba.com/vw/forum/viewtopic.php?p=6221311#6221311

alternatively, here is a broken CV cage, not a 930CV, the axle shaft also broke. A spare axle and CV assembly bolted right in
http://www.thesamba.com/vw/forum/viewtopic.php?p=6221974#6221974

Moral of the story, if you dont want your axles and CV's to act as a protective fuse for your transaxle or differential, use a 930 Axle and CV to transfer the force to the differential.
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My Soapboxes: Inflation; Handling; Gearing; Decoupling; Swepco

[insyncro]

There are beefier internal parts available for when 930s are being used.
Derek Drew broke that same part with a waterboxer powered Syncro.

[syncrodoka]

[Jon_slider]

> I have been running 930s for a few years without breaking anything-

my comments are based on evidence of breakage. Since you have no breakage, yet, we dont know where your system's weak link is. But my guess is you will break your transmission before your 930 axles and CV's.. thats the point of sharing this info

fwiw
your 2.2 subie motor has had less power than the 2.5 subie that broke the differential output shaft, and your syncro runs smaller tires and has less ride heigh/body lift

> should I be worried?

now that you have increased your motor power to approach the power of the one that broke the diff output shaft you are in position to join the club.

All you need is bigger tires, more body lift, learn to drive like Frankensubie and DASMULE, and a trip to Mogfest.

You wont know where your weak link is until you break something, abuse required.

are you feeling lucky?

Im running 944 axles and 944 CV's, and have never broken one.. should I worry?
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My Soapboxes: Inflation; Handling; Gearing; Decoupling; Swepco

[syncrodoka]

So you are now saying that it is more than just the parts? I would like to know if this is a imminant failure or isolated.
I have been in the mogfest pit before and drove home 12 hrs under my own power.
Do you know the particulars on both failures? The Das Mule failure was abuse so no learning involved.

[insyncro]

Driver error in harsh terrain breaks parts.
One slip of the clutch with a tired foot from prolonged creeping and ....whammo.

[Hodakaguy]

I just started to clean up/re-pack my stock CV joints last night on my Syncro. The first CV I pulled apart looks really good, except one race that has a flat spot big enough to catch a nail on. The ball from that race is also dull and slightly pitted.

I think I'll just replace all the CV joints on the bus with new units while I have it apart. Sooooo.....

So which would be the better CV (quality/longevity) for my stock axles.... Empi Off Road T2 CV Joints with the hardened balls and cages or would a Lobro 944 CV be the best? I'm going to be running the Fox Shocks with limiting straps.

Thanks

Hodakaguy
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