Wheel hub

[MJfan94]

I changed the ball joints recently and i torqued the back three hub bolts to 75ftlbs but they keep backing up. Do i have the wrong torque setting or is there something I'm doing wrong.

[91Pioneer]

Loctite?

[gogmorgo]

Make sure the threads are clear of any oil or grease. While you've got the bolts out, check that they're not necking or otherwise compromised. I suppose you could use lock tight, but I never have, and haven't had an issue yet.

Also make sure the hub is seated properly. There shouldn't be any gap between the hub and knuckle. There could be some kind of debris or possibly a mangled dust shield preventing it from seating.

[MJfan94]

Ill take it apart and check for dirt or anything and use locktite this time. Also what type of locktite should i use?

[Crash]

Blue loctite should be satisfactory.

[Eagle]

Blue loctite should be satisfactory.

Agreed.

 

Red is the next stronger, and that's for things you won't take apart.

[Rockfrog]

The larger the fastener, the lower the retention of red. It actually works more like Blue when the fastener gets up around 1/2", used to use red all the time on spacers when I used the hub adapters, came off just like blue when changing and retorquing. Red should be fine on the hub bolts, but blue will do just as well. I would suspect contaminated surfaces/threads yielding and improper torque reading. Never had one back out on me and I use never sieze on mine. So my guess is they are not properly seating at torque.

[MJfan94]

Thanks for all the feed back, I'll try using blue loctite and hopefully everything doesn't fall apart on me

[Keyav8r]

Run a tap in the threaded holes to clean them out and then use some brake cleaner to blow out any debris, oil, grease, etc. (put a shop towel over the hole and wear safety glasses when doing this).

Clean the bolt threads with a wire brush and some brake clean for the same reason.

If the threads aren't clean the Loctite is useless. If you do all this and the bolts still back out, get new bolts.