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914World.com _ 914World Garage _ CV Joint alternative

Posted by: Red-Beard Sep 27 2005, 09:46 PM

There is a local shop on my monday night route which remans CV joints. The machine the joints and install oversize balls. The 914/6 friggen joint is unique. At least 1 of mine has gone bad.

Has anyone tried this?

Posted by: Gint Sep 27 2005, 10:04 PM

Nope. Lemme know how it works out?

Posted by: mikey Sep 27 2005, 11:06 PM

My -6 CV joints were buggered too. I just replaced them with -4s at the recommendation of Brad and Rich Bontempi at HPH. They said the only difference between a -6 and -4 CV is that the -6 internally has one more spline. The dimensions, strength, outside appearance, etc of the -4 CV are the same as the -6.

Changing ball size sounds like a lot of trouble and expense. If you go that route let us know how much it cost and what the result was. (I still have my worn out -6 CVs that could be redone).

Posted by: jkeyzer Sep 27 2005, 11:18 PM

mikey - where did you get your -4 joints?

I would like to know the costs of rebuilding also.

Someone should go into business adapting VW CV's for 914's. All it would require is a lathe...

Posted by: Aaron Cox Sep 27 2005, 11:19 PM

QUOTE (jkeyzer @ Sep 27 2005, 10:18 PM)
mikey - where did you get your -4 joints?

I would like to know the costs of rebuilding also.

Someone should go into business adapting VW CV's for 914's. All it would require is a lathe...

Jeff-

which vw Cv's? and what is turned on the lathe?

Posted by: Engman Sep 27 2005, 11:27 PM

Yep - got both seats redone locally for $100 - this was 5 years ago - 12000 miles and they are fine...

M

Posted by: mikey Sep 27 2005, 11:52 PM

QUOTE
mikey - where did you get your -4 joints?

I got mine at HPH in Redwood City. Rich Bontempi had just got a bunch of them.

Posted by: lapuwali Sep 28 2005, 03:22 PM

Hm. Perhaps buy a set to put on the shelf would be prudent. Did Rich indicate he had a steady supply, or did he just raid some secret NOS stash?

Posted by: jkeyzer Sep 28 2005, 03:45 PM

QUOTE (mikey @ Sep 27 2005, 09:52 PM)

QUOTE
mikey - where did you get your -4 joints?

I got mine at HPH in Redwood City. Rich Bontempi had just got a bunch of them.

New or used?

Posted by: jkeyzer Sep 28 2005, 03:47 PM

Oh and Aaron. I think they are just VW bug CV's.

Two holes need to be opened up to fit the dowel pins (and have a seat about 1/2" down to keep the dowels from going too far).

The outside edge needs to be turned down a couple mm to fit the gasket.

That is if we are going for a perfect replacement, you can "make things work" with no mods at all. But you know how much we like things to be original!

Posted by: mikey Sep 28 2005, 06:22 PM

QUOTE
New or used?

New.

Don't remember what the cost was. I've heard that they periodically are hard to come by so I grabbed them as soon as they were available.

Posted by: SLITS Sep 28 2005, 06:25 PM

The reman people use a dedicated machine to hog out the recesses (built specifically for that purpose) and that is why they use an over size ball. Common practice.............

Posted by: Red-Beard Sep 28 2005, 07:13 PM

QUOTE (mikey @ Sep 27 2005, 09:06 PM)
My -6 CV joints were buggered too. I just replaced them with -4s at the recommendation of Brad and Rich Bontempi at HPH. They said the only difference between a -6 and -4 CV is that the -6 internally has one more spline. The dimensions, strength, outside appearance, etc of the -4 CV are the same as the -6.

Changing ball size sounds like a lot of trouble and expense. If you go that route let us know how much it cost and what the result was. (I still have my worn out -6 CVs that could be redone).

So, are you saying a 4 axel will replace a 6 axel?

Posted by: mikey Sep 28 2005, 07:20 PM

Exactly - a -4 axle with -4 CV joints on it will replace a -6 axle with -6 CV joints on it.

However, you can't mix and match axles and CV joints, due to the fact that the -6 CV joint and axle have one more spline than the -4 CV joint and axle

In all other respects (dimensionally) they are the same.

Posted by: Aaron Cox Sep 28 2005, 07:25 PM

why didnt porsche have ONE cv for all early 911's and 914's?

one spline difference.....

Posted by: Cap'n Krusty Sep 28 2005, 07:44 PM

QUOTE (Aaron Cox @ Sep 28 2005, 05:25 PM)
why didnt porsche have ONE cv for all early 911's and 914's?

one spline difference.....

Because the axles, like the bodies, the engines, the trannies, and a lot more, were sourced from VW. VW used their CVs, modified, and Porsche used theirs. 911 CVs didn't come from any VW product or project. The Cap'n

Posted by: kart54 Sep 28 2005, 07:45 PM

Performance Products in the San Fernando Valley sells the complete axle for the 914-4 for $361.95 and the CV joint for $110.95 each. Just looked in my catalogue before writing this. Available now and have been for some time as far as I know. I bought a new pair of complete axles when I bought my car in February of this year.
You can find them at www.automotion.com or call 1 800 423-3173.
I have no affiliation with them, just a satisfied customer.
Randy

Posted by: mikey Sep 28 2005, 07:51 PM

QUOTE
Performance Products in the San Fernando Valley sells the complete axle for the 914-4 for $361.95 and the CV joint for $110.95 each.

Yipes! That sounds steep! I don't remember exactly how much I paid HPH, but I'm sure it was under $200 for each axle/CV joint unit.

Jeesh, maybe they have gone up that much in the last year due to availability (or lack thereof)