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Axle shaft install question

Tiko433

Contributor
I know just enough to be dangerous
Joined
Jul 9, 2014
Messages
1,898
Loc.
Bolivia, North Carolina
I replaced bearings on both shafts, I used RTV on brake backing plate to axle housing and the plate that holds the axle to the housing , I put a little RTV on that also. I noticed the plate has a little opening in the bottom. Is this to let the oil out if the seal or bearing fails ? I was carful not to block it . It also looks like a place to let water in. Could I put some grease behind the plate ? There is nothing between it and the bearing.
Maybe I'm over thinking it ....
It's a 9 in
 

Viperwolf1

Contributor
electron whisperer
Joined
Aug 23, 2007
Messages
24,448
I think it's purpose is to let any oil drain out if the bearing seals go out. Without the drain oil would run to the axle flange and get flung inside the drum.
 

chrisd0729

Sr. Member
Joined
Jul 12, 2003
Messages
609
Loc.
Churchville, PA
I always wonder what the people did wrong when the entire wheel, tire and axle fly out of the housing while driving and they're left leaning on 3 tires. Working on my back axle today, I can't help but wonder how that backing plate alone holds the entire axle in place and it doesn't fly out when taking a turn at speed. The plate doesnt seem that thick or strong.
 
Last edited:

blubuckaroo

Grease Monkey
Joined
Jun 11, 2007
Messages
11,796
Loc.
Ridgefield WA
I always wonder what the people did wrong when the entire wheel, tire and axle fly out of the housing while driving and they're left leaning on 3 tires. Working on my back axle today, I can't help but wonder how that backing plate alone holds the entire axle in place and it doesn't fly out when taking a turn at speed. The plate doesnt seem that thick or strzing.

If that bothers you, you should see what holds in a GM axle. It's just a small "C" clip.
 

B RON CO

Contributor
Bronco Guru
Joined
Jun 29, 2016
Messages
2,484
Loc.
Statesville, NC
Hi, four bolts and plate bolted through the backing plate onto the axle housing hold the axle in place. The bolts are special with unique heads. There is no need for any sealer. Good luck
 

CopperRanger

Bronco Guru
Joined
Sep 26, 2007
Messages
1,796
I always wonder what the people did wrong when the entire wheel, tire and axle fly out of the housing while driving and they're left leaning on 3 tires. Working on my back axle today, I can't help but wonder how that backing plate alone holds the entire axle in place and it doesn't fly out when taking a turn at speed. The plate doesnt seem that thick or strong.

I think when you see that the bearing retainer has failed and the axle shaft pulls out leaving the bearing inside the housing.
 
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