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914World.com _ 914World Garage _ 911 front hubs- split washers or no

Posted by: twistedstang Mar 14 2019, 01:48 PM

I'm finishing up my five lug swap and hit a wall. On the aluminum 911 hubs, is it proper to use a split washer on the aluminum hub when bolting on the rotor? If so, should I run the bolt through the hub first so the split washer is on the rotor side instead? I'm worried they will mar the aluminum.

Posted by: yeahmag Mar 14 2019, 02:28 PM

I use a flat washer and non-locking 8mm nut torqued to spec.

Posted by: mb911 Mar 14 2019, 02:53 PM

I use spring washers no split washers.

Posted by: sixnotfour Mar 14 2019, 03:45 PM

2 900 075 079 02 Hexagon-head bolt 10 914-6
M 8 X 22
3 N 012 241 1 Spring washer 10 914-6
B 8 X 15
4 900 076 025 02 Hexagon nut 10 914-6
M 8

Posted by: bdstone914 Mar 15 2019, 03:19 AM

Spring washers are correct. The bolt goes through from the rotor side with the nut and washer against the hub.
Bruce

Posted by: twistedstang Mar 15 2019, 05:33 AM

Thanks everyone. I'll be on the hunt today for spring washers.