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> Using a Boxster Rear Hub for 5 Bolt Conversion, I think it will be EASY
914Sixer
post Nov 19 2014, 06:10 PM
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We all know that 69-73 911 rear hubs are getting scarce and pricey. I went out on a limb and bought a whole rear 99 Boxster assembly for $41 delivered on EBAY. It is a well known fact that the 914 and the Boxster use the same wheel bearing. So I figured it would be an easy swap. I drove the hub out of the bearing and started the comparison of the two hubs. I had a 69-73 911 rear hub and a -6 stub axle to use as a baseline. The Boxster hub has the same splines as the 911/914-6 stub axle so it was a drop in fit. One down, so I put them side by side to find out they are the same height. Now have two down, the last check was to set the rotors on both hubs to see where we were at. Bingo, they matched up. So the stub, the hub and the height are all the same. HOWEVER, there is one area to be addressed. the -6 stub sticks up about 5mm past the center of the hub. It is going to require a spacer to fill in the area so the washer and nut will tighten down. I am thinking that the one that Patrick Motor sports will do the trick. I think it will be worth trying because I am using Boxster wheels.

Tell me what you think.


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pcar916
post Dec 12 2014, 06:55 PM
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Very cool thread.
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914Sixer   Using a Boxster Rear Hub for 5 Bolt Conversion   Nov 19 2014, 06:10 PM
ClayPerrine   IIRC, the Boxster stub axle is a 6 bolt that is th...   Nov 19 2014, 07:00 PM
r_towle   Because I have a set of early 911 trailing arms in...   Nov 19 2014, 07:10 PM
914Sixer   So, you need to disassemble the axle from the Boxs...   Nov 19 2014, 07:14 PM
914Sixer   The trailing arms need to be 69 or later to be use...   Nov 19 2014, 07:17 PM
r_towle   The trailing arms need to be 69 or later to be us...   Nov 19 2014, 07:58 PM
Series9   This could be a very productive thread. Nice job.   Nov 19 2014, 07:19 PM
Woody   This could be a very productive thread. Nice job...   Nov 19 2014, 09:08 PM
Randal   This could be a very productive thread. Nice jo...   Jan 27 2015, 10:24 AM
914Sixer   Early 65-68 arms have a long stub axle and long hu...   Nov 19 2014, 08:33 PM
396   Excellent work. :Qarl: :Qarl: :DRUNK: One quic...   Nov 19 2014, 10:05 PM
914Sixer   I used a 97-04 boxster rear hub. Part number 996....   Nov 19 2014, 10:25 PM
rick 918-S   Nice!   Nov 19 2014, 11:06 PM
McMark   Watching with interest. :popcorn:   Nov 20 2014, 12:47 PM
blackmoon   Watching with interest. :popcorn: :agree: seems...   Jan 27 2015, 01:09 PM
nsyr   This would be a nice option for a subaru engine/tr...   Nov 20 2014, 07:07 PM
914Sixer   New interesting development about the axle. I pai...   Nov 21 2014, 10:36 PM
El Vikingo Tropical   A good and productiv thread :popcorn:   Nov 22 2014, 12:23 AM
davep   I agree, this is an interesting development. I hav...   Nov 22 2014, 08:46 PM
McMark   Any updates? :popcorn:   Dec 12 2014, 12:34 PM
SirAndy   Any updates? :popcorn: :agree: Having a hub c...   Dec 12 2014, 12:48 PM
914Sixer   I will be working on a update for this weekend. B...   Dec 12 2014, 06:24 PM
914Sixer   The 964 front hub looks like it may be another opt...   Dec 12 2014, 06:46 PM
Mueller   The 964 front hub looks like it may be another op...   Dec 13 2014, 08:32 AM
pcar916   Very cool thread.   Dec 12 2014, 06:55 PM
a914622   964 with splines in front should be c4   Dec 13 2014, 10:21 AM
porsche913b_sp   Great job, keep it coming :popcorn:   Dec 15 2014, 02:41 PM
914Sixer   I am not going to make it to the shop until this c...   Dec 15 2014, 04:24 PM
Amenson   ...HOWEVER, there is one area to be addressed. t...   Dec 15 2014, 07:22 PM
Amenson   Really jonesing so I went looking for more info an...   Dec 15 2014, 10:22 PM
914Sixer   Yes, the 911 stub axle sticks up the same amount a...   Dec 16 2014, 04:57 PM
3d914   Great job. Thanks. Keep the details coming!   Dec 16 2014, 09:34 PM
El Vikingo Tropical   You can see her what you will need: http://www.pa...   Dec 17 2014, 02:34 AM
Amenson   I had thought that also but Patrick Motorsports ha...   Dec 17 2014, 08:43 AM
CptTripps   Just a question: Are the Boxster parts better/chea...   Dec 17 2014, 08:58 AM
914Sixer   Whole rear Boxster hub assemblies can be had for l...   Dec 17 2014, 03:30 PM
914Sixer   Ok, here is the last of what I have found out usin...   Jan 26 2015, 08:30 PM
CptTripps   Thanks for the intel Mark. Looks like we can put t...   Jan 27 2015, 09:40 AM
Amenson   I am still planning to use the hubs. Still cheape...   Jan 27 2015, 10:44 AM
914GTSTI   I know i'm going to get flamed but will the 4 ...   Jan 27 2015, 12:50 PM
Mark Garriott   There are some variations on this: The 986/996 use...   Jan 27 2015, 01:03 PM
Larmo63   Or, you can just use real 914-6 hubs/stubs for you...   Jan 27 2015, 08:05 PM
914GTSTI   I ordered in some Box outer hubs. http://www.914wo...   Feb 3 2015, 01:26 PM
914GTSTI   Here is a little add to using the Boxster hub. I m...   Feb 10 2015, 12:43 PM
Mueller   ^Looks good, instead of cutting the stub axle I wo...   Feb 10 2015, 01:02 PM
914GTSTI   Yep, I looked at that but wanted just a little mor...   Feb 10 2015, 02:11 PM
Harpo   Make sure your spacer is as hard as your nut (HRC)...   Feb 10 2015, 04:28 PM
914GTSTI   Thanks David,I will keep a eye on that. So it wil...   Feb 10 2015, 08:16 PM
Amenson   Thanks David,I will keep a eye on that. So it wi...   Feb 10 2015, 08:46 PM
914GTSTI   Good idea. I will look at it tomorrow. But I don...   Feb 10 2015, 09:01 PM
914GTSTI   Huston we have launch ! It will work,but it ta...   Feb 11 2015, 12:33 PM
Jeff Hail   Order 4 911 rear bearing covers so they are double...   Feb 12 2015, 01:18 AM
914GTSTI   Here is what I found. The 911 flange is .090 thic...   Feb 12 2015, 10:41 AM
Mueller   Did you measure the wheel mating surface compared ...   Feb 12 2015, 10:57 AM
914GTSTI   The way I looked at it, the brake caliper is in th...   Feb 12 2015, 11:03 AM
Mueller   The way I looked at it, the brake caliper is in t...   Feb 12 2015, 11:06 AM
914GTSTI   No Problem ! All it takes is tools,parts,time...   Feb 12 2015, 11:28 AM
pete000   Might this be an option for the flange hitting the...   Feb 12 2015, 12:24 PM
914GTSTI   Yes this will work but may need to be chamfered ?   Feb 12 2015, 12:36 PM
Amenson   I got in touch with Chris Foley today and the diam...   Feb 12 2015, 09:25 PM
914GTSTI   Scott. The retainers from my Boxster hubs will not...   Feb 12 2015, 10:53 PM
Amenson   Scott. The retainers from my Boxster hubs will no...   Feb 13 2015, 06:59 AM
914GTSTI   It mite be open enough . When I get to the shop I ...   Feb 13 2015, 08:28 AM
914GTSTI   The Box center hole is 2.72" +-. The 914-4 is...   Feb 13 2015, 11:45 AM
914GTSTI   All installed. 930 CV, cut Boxster Hub, and a 108 ...   Feb 16 2015, 12:43 PM
djb   First, incredible thread, thank you! I have r...   Mar 18 2018, 10:15 PM
914Sixer   I have a set of Boxster hubs for sale if some one ...   Mar 19 2018, 09:47 PM
djb   I have a set of Boxster hubs for sale if some one...   Mar 20 2018, 10:24 PM
914Sixer   $74 shipped. The thread pretty much covers i...   Mar 21 2018, 07:11 AM


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