 Possible HD Axle Upgrade With 100mm CV's, Need Opinions |
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| 914Sixer |
 Mar 23 2023, 01:53 PM
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#1
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914 Guru  Group: Members Posts: 9,122 Joined: 17-January 05 From: San Angelo Texas Member No.: 3,457 Region Association: Southwest Region 
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I was able to purchase a VW Bus Axle. 914 axles are 20.25 in length and about 25mm in diameter. This bus axle is 20.50 in length and 28mm in diameter (double check the length on what you are buying). Best I can measure the CV's are in the same place with just 3mm on each end difference. The 914 axles I have look like they were ground off to make them shorter from the factory There is plenty of room in the 944 Turbo stub axle and the 915 transmission flange for movement. The axles are fully loaded and ready to go. Depending on where you shop you can pick up a pair shipped for less than $185. The only modification I see will be adding extra gasket on the transmission flange. To make these work you will need 944 stub axles and 915 transmission flanges.
The old original bus cv's had 17 degrees on angle. The new 944/bus cv's go a full 24 degrees. Stock 914 cv angle was 12 degrees. Will play around this weekend and see what comes up. Opinions? Attached image(s) 
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| technicalninja |
Mar 23 2023, 02:19 PM
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#2
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Advanced Member Group: Members Posts: 2,531 Joined: 31-January 23 From: Granbury Texas Member No.: 27,135 Region Association: Southwest Region
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Very interesting!
What year Bus should you use for hunting? Where did you get your axles? You are a wealth of information and share it without fail. You should be cloned and installed in every enthusiast forum... |
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| rick 918-S |
Mar 24 2023, 04:40 AM
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#3
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Hey nice rack! -Celette Group: Members Posts: 20,946 Joined: 30-December 02 From: Now in Superior WI Member No.: 43 Region Association: Northstar Region 
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Sorry I do not get what you are saying. Does this bolt in as a replacement for the stock 914 axle? Sounds like it mates to the 914 flange. Is there something from the 944 you need to change on the outboard side to make it work?
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| 914Sixer |
Mar 24 2023, 05:51 AM
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#4
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914 Guru Group: Members Posts: 9,122 Joined: 17-January 05 From: San Angelo Texas Member No.: 3,457 Region Association: Southwest Region
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Not this is not a plug and play. This may let you use a stock off the shelf VW bus axle (100mm CV). You will need a 69-73 914-6/911 rear hub, 915 or 944 stub axle along with 915 transmission flange. Using these pieces you should be able to do upgrade.
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| rick 918-S |
Mar 24 2023, 06:02 AM
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#5
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Hey nice rack! -Celette Group: Members Posts: 20,946 Joined: 30-December 02 From: Now in Superior WI Member No.: 43 Region Association: Northstar Region
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I thought that is what you meant. Thank you. PMB has the outboard part.
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| Krieger |
Mar 24 2023, 08:20 AM
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#6
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Advanced Member Group: Members Posts: 4,803 Joined: 24-May 04 From: Santa Rosa CA Member No.: 2,104 Region Association: None
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Wow, that could make it easy. Who makes the axle assembly?
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| 914Sixer |
Mar 24 2023, 09:02 AM
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#7
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914 Guru Group: Members Posts: 9,122 Joined: 17-January 05 From: San Angelo Texas Member No.: 3,457 Region Association: Southwest Region
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Lots of axle makers on the internet. Just have to make sure you get the 20.50 " one. Adding pictures of 944 Turbo stub axle with custom pressed on spacer. Also shown with 914-6/911 hub.
Attached image(s)   
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| 930cabman |
Apr 2 2023, 12:47 PM
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#8
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Advanced Member Group: Members Posts: 4,069 Joined: 12-November 20 From: Buffalo Member No.: 24,877 Region Association: North East States
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| sechszylinder |
Apr 3 2023, 12:03 PM
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#9
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Member Group: Members Posts: 260 Joined: 9-April 03 From: /earth/europe/germany/berlin Member No.: 545 Region Association: None
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Years ago, I‘ve tried the same, but was never able to locate a set of these 20 1/2 inch vanagon axles.
They were always way longer than 20 1/2 …. Just for reference: http://blindchickenracing.com/How_to/CVJoi...s/axles_101.htm I‘ve ended up using modified 914 axles with 100mm CVs on 944 turbo stubs. Br Benno P. S. I have just looked in my records. You need to get axles for vanagons (1983 onwards) with automatic transmission, but only the left side will fit, which is 522mm long. Right side is 570mm |
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| sechszylinder |
Apr 22 2023, 01:58 AM
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#10
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Member Group: Members Posts: 260 Joined: 9-April 03 From: /earth/europe/germany/berlin Member No.: 545 Region Association: None
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any update regarding the vanagon axles ? (IMG:style_emoticons/default/idea.gif)
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