| Brake drum to hub bolts, torque? [message #213078] |
Tue, 02 July 2013 20:03  |
lw8000
Messages: 201
Registered: July 2012
Location: S.E. Michigan
Karma: 1
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Senior Member |
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Hello all,...
I have a question regarding the bolts that hold the rear brake drum to the hub. I had to pull off a hub to replace a broken lug bolt from the previous owner (and remove the drum from the hub). I replaced the lug bolt and am ready to bolt the drum back to the hub with the bolts that hold the two pieces together. Is there anything special that needs to be done with these bolts such as applying threadlocker, and torquing them on? I read through the manuals and haven't found any information on this.
As always, thanks so much for the help!
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Chris
Chris S. -
77 Kingsley, 3.70 FD, mostly OEM -
S.E. Michigan
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| Re: Brake drum to hub bolts, torque? [message #213083 is a reply to message #213078] |
Tue, 02 July 2013 20:52  |
Carl S.
Messages: 4186
Registered: January 2009
Location: Tucson, AZ.
Karma: 13
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Senior Member |
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| lw8000 wrote on Tue, 02 July 2013 18:03 |
Hello all,...
I have a question regarding the bolts that hold the rear brake drum to the hub. I had to pull off a hub to replace a broken lug bolt from the previous owner (and remove the drum from the hub). I replaced the lug bolt and am ready to bolt the drum back to the hub with the bolts that hold the two pieces together. Is there anything special that needs to be done with these bolts such as applying threadlocker, and torquing them on? I read through the manuals and haven't found any information on this.
As always, thanks so much for the help!
--
Chris
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When I did the disc brake conversion, I torqued those bolts to 80 lb ft. I'm not sure where I got that number, from the maintenance manual or a generic torque chart. It's probably a good idea to use thread locker on them as well. As difficult as they were to get out, it makes me think they had some on from the factory.
http://www.gmcmhphotos.com/photos/disc-brakes-chuck-aulgur-reaction-arm-install/p40078-hub-rotor-assembly.html
Carl Stouffer
'75 ex Palm Beach
Tucson, AZ.
Chuck Aulgur Reaction Arm Disc Brakes, Quadrabags, 3.70 LSD final drive, Lenzi knuckles/hubs, Dodge Truck 16" X 8" front wheels, Rear American Eagles, Solar battery charging. GMCSJ and GMCMI member
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| Re: Brake drum to hub bolts, torque? [message #213346 is a reply to message #213083] |
Fri, 05 July 2013 11:48 |
lw8000
Messages: 201
Registered: July 2012
Location: S.E. Michigan
Karma: 1
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Senior Member |
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Thank you very much! We ended up using threadlocker (Loctite blue 242), and torqued them to 80 ft-lb. I think you are right, there seemed to be some sort of threadlocker or thread protection compound on them from the factory (whitish colored) on the threads.
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Chris
Chris S. -
77 Kingsley, 3.70 FD, mostly OEM -
S.E. Michigan
[Updated on: Fri, 05 July 2013 11:49] Report message to a moderator |
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| Re: Brake drum to hub bolts, torque? [message #213349 is a reply to message #213346] |
Fri, 05 July 2013 11:56 |
Carl S.
Messages: 4186
Registered: January 2009
Location: Tucson, AZ.
Karma: 13
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Senior Member |
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| lw8000 wrote on Fri, 05 July 2013 09:48 |
Thank you very much! We ended up using threadlocker (Loctite blue 242), and torqued them to 80 ft-lb. I think you are right, there seemed to be some sort of threadlocker or thread protection compound on them from the factory (whitish colored) on the threads.
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Chris
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Right, some sort of white stuff. It made the bolts particularly hard to remove. I don't remember what I used on the new ones, probably blue Locktite.
Carl Stouffer
'75 ex Palm Beach
Tucson, AZ.
Chuck Aulgur Reaction Arm Disc Brakes, Quadrabags, 3.70 LSD final drive, Lenzi knuckles/hubs, Dodge Truck 16" X 8" front wheels, Rear American Eagles, Solar battery charging. GMCSJ and GMCMI member
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