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> Easy 5-Lug Conversion - 911 Running Gear, For High Power Applications...
Eric_Shea
post Jan 9 2011, 04:46 PM
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I think you're safe with any of these... they should all be coarse spline/108mm.

QUOTE
70 901.332.209.15 Chilled cast
70 901.332.209.21 Pressure cast
71 911.332.209.00
72-73 915.332.209.01

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Steve
post Jan 9 2011, 04:50 PM
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Thanks Eric!!
Can I use any one of these part numbers today in my 914 trans and then reuse them later someday if I upgrade to a late model 8:31 915?
Just curious!!
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Eric_Shea
post Jan 9 2011, 07:27 PM
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If you get an early 915 that takes the coarse splines... yes. I think you're safe with anything up to 74 or 75 but there's probably someone a little more knowledgable on 915's here than I.

I "believe" the 76 915 was the first with a thinner spline and the smaller 6 bolt CV's.
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Steve
post Jan 9 2011, 09:40 PM
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Thanks Eric!! I am curous what Paul is using, since he is using 108mm CV's with a 1977 915/61 Trans.
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Eric_Shea
post Jan 9 2011, 09:51 PM
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I "think" he's using later stuff all around. He can weigh in. He had to make spacers for his hub-centric hubs if I recall, that would make those later. 930 stuff would be the same 108mm size, The CV's are 6 bolt no-pin vs. 4 bolt 2-pin.

I've had a few early flanges machined to 6 bolt (Bob Burton, George Spencer and Andrew Mallagh come to mind) to accomodate new 930 CV's. The pin holes need to be drilled and tapped for the extra two bolts.
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racerbvd
post Jan 9 2011, 11:20 PM
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Thanks Eric!!!
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Harpo
post Feb 23 2013, 04:26 PM
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Behold my new 914 axles with 911 C/V joints and sway-away axles. However where can I find new boot clips? The originals have 74 oetiker stamped on them.

For those of you considering this route the C/V joints are pressed on the the axles and It took 500 psi with a press to separate them. Thanks for your help Eric.

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Eric_Shea
post Feb 23 2013, 04:58 PM
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Those small clips do seem to have dried up. May have to use regular clamps.

Great Job BTW!! (IMG:style_emoticons/default/smilie_pokal.gif)
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davesprinkle
post Feb 23 2013, 05:18 PM
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Oetiker clamps are available from McMaster-Carr. Search for "ear clamp".
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Harpo
post Feb 23 2013, 05:51 PM
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I was not able to locate any "ear clamps" but I did find these

http://www.mcmaster.com/#standard-hose-clamps/=llxpjh

However I have to buy 25 so if anyone needs any let me know.

David
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Eric_Shea
post Feb 23 2013, 06:43 PM
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http://www.mcmaster.com/#ear-hose-clamps/=llyeki

Dave always has good info. (IMG:style_emoticons/default/biggrin.gif)
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PRS914-6
post Feb 23 2013, 11:53 PM
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The idea is to allow the axle to "float" and not put any side load on the CV's., only rotational load. This is much better for the CV's . The outside snap rings keep the axle from sliding too far either way. No internal ring is needed

Also, don't forget the 5mm spacer required for the stub axles. As you know, I prefer the hub centric style.


QUOTE(Gint @ Jan 22 2009, 08:16 PM) *

While I'm here, no groove for a retaining ring on the inside of the new axle shafts? No worries about the shaft floating out? Theoretically there shouldn't be an issue. but... a question for the hell of it.
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PRS914-6
post Feb 23 2013, 11:59 PM
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QUOTE(Harpo @ Feb 23 2013, 02:26 PM) *

For those of you considering this route the C/V joints are pressed on the the axles and It took 500 psi with a press to separate them. Thanks for your help Eric.



Eric, the axles should slide in the CV's like a clutch and input shaft unless you are just talking about removing them from the stock axle. If you have to press the CV's on the new race axle you loose the self centering action they were designed to have.
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Eric_Shea
post Feb 24 2013, 10:11 AM
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Paul, he bought complete cv/axle assemblies that had the 4 bolt 2 pin config. That's the only way to get those CVs these days. He had a tough time pressing them off the 911 axle. Sometimes they come right off. Sometimes they need a little "help".
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PRS914-6
post Feb 24 2013, 10:24 AM
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QUOTE(Eric_Shea @ Feb 24 2013, 08:11 AM) *

Paul, he bought complete cv/axle assemblies that had the 4 bolt 2 pin config. That's the only way to get those CVs these days. He had a tough time pressing them off the 911 axle. Sometimes they come right off. Sometimes they need a little "help".


OK, I was only worried about the fit on the new axle. Sometimes I have to press the old ones off too but they fit on easy over the new race axles
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Mark Henry
post Jul 2 2013, 11:34 AM
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QUOTE(Harpo @ Feb 23 2013, 06:26 PM) *

Behold my new 914 axles with 911 C/V joints and sway-away axles. However where can I find new boot clips? The originals have 74 oetiker stamped on them.

For those of you considering this route the C/V joints are pressed on the the axles and It took 500 psi with a press to separate them. Thanks for your help Eric.

Attached Image


I was going this route, but I'm thinking of using the later G50 CV, mainly because I'm a CSOB (would save me $150) and I should be able to figure out a solution for the gasket/end cap issue.

The G50 is 6 bolt X 10mm and has no relief for a gasket, but is suppose to be the same in all other regards.

http://forums.pelicanparts.com/porsche-911...patibility.html

Part number for the G50 CV is 911-332-923-01-M60
http://www.pelicanparts.com/cgi-bin/ksearc...-332-923-01-M60

(IMG:http://www.914world.com/bbs2/uploads_offsite/forums.pelicanparts.com-26-1372786441.1.jpg)

(IMG:http://www.914world.com/bbs2/uploads_offsite/forums.pelicanparts.com-26-1372786892.1.jpg)

(IMG:http://www.914world.com/bbs2/uploads_offsite/forums.pelicanparts.com-26-1372786892.2.jpg)


Only real issues is the 6 bolt 10mm vs 4 bolt 2 pin and no gasket. It looks like the 928 cap will not fit into the early flange/stub.

(IMG:http://www.914world.com/bbs2/uploads_offsite/forums.pelicanparts.com-26-1372786893.3.jpg)
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tomeric914
post Aug 21 2013, 08:52 PM
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Adding to an already great thread...

Dimensions of a stock 914 transmission output flange

Attached Image

Overall length is 100mm

Total of 18 coarse splines
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chad newton
post Aug 22 2013, 08:06 PM
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Ok, so what if you went with the newer style everything. Like for my 78 I have. Do I need to make an adapter to make the 6 bolt cv's fit the trans axles? Or is there a different way then that?
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tomeric914
post Aug 22 2013, 08:25 PM
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QUOTE(chad newton @ Aug 22 2013, 10:06 PM) *

Ok, so what if you went with the newer style everything. Like for my 78 I have. Do I need to make an adapter to make the 6 bolt cv's fit the trans axles? Or is there a different way then that?

'75-'79 (or so) has smaller cost reduced CVs (100mm) versus the earlier 108mm.

Later 915 with the 100mm variety CV have fine spline which won't fit the 901 coarse spline output...
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PRS914-6
post Aug 22 2013, 09:18 PM
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More comparison photos. You can clearly see the ability to run more HP with the 911 goodies. I run the 108 four bolt/2 pin CV's No problems yet.

First, the Swayaway on the right side:
Attached Image

Attached Image

Attached Image
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