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'74 1.8 914
 
Madmax914's Avatar
 
Join Date: Feb 2014
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944 CV's on a 108mm Stub Axles

I'm looking at buying a set of 911 hubs and outer axle stubs to upgrade my 914 to 5x130 bolt pattern. Will the 944 CV joints work with the 108mm stub axles?
Old 08-19-2014, 03:44 PM
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John Rogers's Avatar
 
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There is a post here (I think) or one of the other 914 sites that lists ALL possible combinations including what splines are on what parts. It was posted by an old time vintage racer named Steve Levelsberger.
Old 08-19-2014, 04:42 PM
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madmax, here's a definative article and good resource.
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Old 08-21-2014, 11:29 AM
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944 CV's are 100mm
930 & some 911 CV's are 108mm

944 CV's are 33 spline
930 CV's are 28 spline

Short answer, No they will not fit.
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Old 08-21-2014, 07:30 PM
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Something to consider is what you plan to be doing? If it is racing either on track vintage racing, serious auto-x or time trialing then at sometime something in the drive train will fail. When I was racing my 914-6 we decided to make the weakest part of the drive train the CV joints and used modified (available still) type one CV joints. Sure enough about every other year one would fail, usually the inner right side and the replacement takes about an hour of the whole assembly. After the weekend we would then do a transmission check to look for loose metal, etc and never did break a tranny after we started this.
Old 08-22-2014, 05:32 AM
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'74 1.8 914
 
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Thanks for the help, I just bought some 911 hubs with some 100mm outer axle stubs. When I get closer to completing this project I'll get some custom axles to transfer all that HP. Thank you everyone for your input, it was very helpful. Kept me from making a mistake.
Old 08-23-2014, 08:12 PM
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