 944 stubs on 911 hubs, the bearing spacer info you need |
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| Aaron Cox |
 Mar 16 2007, 08:23 PM
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#1
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Professional Tinkerer  Group: Retired Admin Posts: 24,548 Joined: 1-February 03 From: Corona, CA Member No.: 219 Region Association: Southern California  |
ok, so there are two ways to do this im told, you can make a spacer to fill the area on the stub where the dust seal on a 944 used to live, or you can lathe that off, and let the stub sit deeper into the hub-
so here are pics with dimensions...... ill have to go back and write in the dimensions.... cant read the calipers on a few. (shoulda got the digital ones LOL) the materials required. Bearing, early 911 hub, 951 stub, calipers.  Bearing width.  diameter of "dust seal area" and diameter of bearing area on hub.  width of dust seal area  width of bearing area on hub  combined....  bearing diameter if you need it.  |
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| Luke M |
Mar 17 2007, 03:32 PM
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#2
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Senior Member Group: Members Posts: 1,623 Joined: 8-February 05 From: WNY Member No.: 3,574 Region Association: North East States 
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Hey, Aaron
Is that the setup that you have on your car now or something that youre looking into? I have the patrick motorsport setup now but i'm not crazy about the spacer that goes between the cv and trans output shaft. This looks like the way to go to me. Do you have a break down of the parts needed to complete this. Also, if I go to a 915 trans it should still all bolt up right? Attached image(s) 
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| ClayPerrine |
Mar 17 2007, 03:40 PM
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#3
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Life's been good to me so far..... Group: Admin Posts: 16,568 Joined: 11-September 03 From: Hurst, TX. Member No.: 1,143 Region Association: NineFourteenerVille
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QUOTE(Luke M @ Mar 17 2007, 03:32 PM)  Hey, Aaron Is that the setup that you have on your car now or something that youre looking into? I have the patrick motorsport setup now but i'm not crazy about the spacer that goes between the cv and trans output shaft. This looks like the way to go to me. Do you have a break down of the parts needed to complete this. Also, if I go to a 915 trans it should still all bolt up right? I have this setup on my six (and I did this first, almost 2 years ago now). It works great, bigger CV joints, and it all bolts together. First thing.. Aaron.. it is NOT a dust seal. It is the bearing surface. The 944 uses a flange on the hub that is smaller than the 914. So that part of the stub axle fits into the bearing. If you want to avoid the spacer, then machine off the back of the 911 hub the same amount as the shoulder on the 944 stub axle. This also has the added benefit of not requiring the spacer, or machining the 914 axles. If you do this, you can use the 944 axles without modification. |
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| Aaron Cox |
Mar 17 2007, 08:09 PM
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#4
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Professional Tinkerer Group: Retired Admin Posts: 24,548 Joined: 1-February 03 From: Corona, CA Member No.: 219 Region Association: Southern California |
QUOTE(ClayPerrine @ Mar 17 2007, 02:40 PM) QUOTE(Luke M @ Mar 17 2007, 03:32 PM) Hey, Aaron Is that the setup that you have on your car now or something that youre looking into? I have the patrick motorsport setup now but i'm not crazy about the spacer that goes between the cv and trans output shaft. This looks like the way to go to me. Do you have a break down of the parts needed to complete this. Also, if I go to a 915 trans it should still all bolt up right? I have this setup on my six (and I did this first, almost 2 years ago now). It works great, bigger CV joints, and it all bolts together. First thing.. Aaron.. it is NOT a dust seal. It is the bearing surface. The 944 uses a flange on the hub that is smaller than the 914. So that part of the stub axle fits into the bearing. If you want to avoid the spacer, then machine off the back of the 911 hub the same amount as the shoulder on the 944 stub axle. This also has the added benefit of not requiring the spacer, or machining the 914 axles. If you do this, you can use the 944 axles without modification. clay, so if i machine the hub, i can use a complete 944 axle.... but i couldnt run 944 cv's on a 914 axle then (too short?) and i havent found a pair of early coarse spline trans flanges, to bolt the inside upto..... was interested in dropping 944 cv's onto the machined 914 shafts... |
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| ClayPerrine |
Mar 18 2007, 01:19 AM
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#5
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Life's been good to me so far..... Group: Admin Posts: 16,568 Joined: 11-September 03 From: Hurst, TX. Member No.: 1,143 Region Association: NineFourteenerVille
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QUOTE(Aaron Cox @ Mar 17 2007, 08:09 PM) QUOTE(ClayPerrine @ Mar 17 2007, 02:40 PM) QUOTE(Luke M @ Mar 17 2007, 03:32 PM) Hey, Aaron Is that the setup that you have on your car now or something that youre looking into? I have the patrick motorsport setup now but i'm not crazy about the spacer that goes between the cv and trans output shaft. This looks like the way to go to me. Do you have a break down of the parts needed to complete this. Also, if I go to a 915 trans it should still all bolt up right? I have this setup on my six (and I did this first, almost 2 years ago now). It works great, bigger CV joints, and it all bolts together. First thing.. Aaron.. it is NOT a dust seal. It is the bearing surface. The 944 uses a flange on the hub that is smaller than the 914. So that part of the stub axle fits into the bearing. If you want to avoid the spacer, then machine off the back of the 911 hub the same amount as the shoulder on the 944 stub axle. This also has the added benefit of not requiring the spacer, or machining the 914 axles. If you do this, you can use the 944 axles without modification. clay, so if i machine the hub, i can use a complete 944 axle.... but i couldnt run 944 cv's on a 914 axle then (too short?) and i havent found a pair of early coarse spline trans flanges, to bolt the inside upto..... was interested in dropping 944 cv's onto the machined 914 shafts... Then you need the spacer. You could put the 914 cv on the 944 axle, but it is going to move inward on the splines. I would use the coarse splined 915 flanges and run the 944 stuff all the way around. |
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Posts in this topic
Aaron Cox 944 stubs on 911 hubs, the bearing spacer info you need Mar 16 2007, 08:23 PM
John I prefer the later hubs, but then you would probab... Mar 16 2007, 09:18 PM
LarryR
Hey, Aaron
Is that the setup that you have on you... Mar 17 2007, 10:35 PM Luke M Clay,
Which setup do you have on your six?
I'm... Mar 17 2007, 05:30 PM ClayPerrine
Clay,
Which setup do you have on your six?
I... Mar 18 2007, 01:21 AM John Those 944 axles that bolt up to the coarse spline ... Mar 18 2007, 02:07 AM Luke M Clay,
Could you break down the parts/years that yo... Mar 18 2007, 08:10 AM ClayPerrine
Clay,
Could you break down the parts/years that y... Mar 18 2007, 09:02 AM Luke M Thanks, for the info. Clay.
Looks like that may be... Mar 18 2007, 04:32 PM Aaron Cox someone find me those tranny flanges..... Mar 18 2007, 08:42 PM John A no machining/no spacer solution would be:
1. 76... Mar 18 2007, 10:00 PM amallagh John/Clay,
very informative post. Can you confirm... Nov 29 2007, 05:24 PM Krieger914 The 944 axles are too long by about 3/4". Th... Nov 29 2007, 07:08 PM Elliot Cannon Aaron, are we EVER going to see this car on the ro... Nov 29 2007, 07:11 PM shoguneagle Excellent articles and could not be more timely. ... Nov 29 2007, 11:00 PM amallagh John/Clay,
very informative post. Can you confirm... Nov 30 2007, 02:40 AM |
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