Front axle hubs
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- G-Civilian
- Posts: 2
- Joined: Mon Jul 15, 2019 6:01 am
Front axle hubs
On my front hubs each side has a plug that screws into the back of the hub and in each plug there is a grease fitting that is screwed into the plug. My question is do you unscrew the plug and then add oil or grease and if so, what kind and type of oil or grease or do you just service it with grease using the grease fitting. Thanks
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- Gee Addict
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Re: Front axle hubs
Could you post a pic? For some reason I am not recognizing your description.
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HONOR GRAD-WHEELED VEHICLE MECHANIC SCHOOL 1960 - US ARMY ORDNANCE SCHOOL(MACHINIST) ABERDEEN PG 1962 - O-1 BIRD DOG CREWCHIEF - 300,000+TROUBLE FREE M-38A1 MILES
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7 MIL SPEC MAINTAINED MV'S
COL. BRUNO BROOKS (ARMY MOTORS) IS MY HERO
HONOR GRAD-WHEELED VEHICLE MECHANIC SCHOOL 1960 - US ARMY ORDNANCE SCHOOL(MACHINIST) ABERDEEN PG 1962 - O-1 BIRD DOG CREWCHIEF - 300,000+TROUBLE FREE M-38A1 MILES
LIFE MEMBER AM LEGION-40/8-DAV
7 MIL SPEC MAINTAINED MV'S
COL. BRUNO BROOKS (ARMY MOTORS) IS MY HERO
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- G-Corporal
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Re: Front axle hubs
That sounds like the Front Axle Universal Joint & Steering Knuckle Bearings, fill to plug with chassis grease.
- artificer
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Re: Front axle hubs
Some of the terminology is not recognizable. Probably the swivel pin/cv/knuckle housings are what is being described. 
If this diagram identifies the plug being talked about, it normally doesn't have a grease fitting but is just a standard gas plug.
The plug is removed & general purpose grease is used inside, to that level.

If this diagram identifies the plug being talked about, it normally doesn't have a grease fitting but is just a standard gas plug.
The plug is removed & general purpose grease is used inside, to that level.
John GIBBINS Member Institute of Automotive Mechanical Engineers [Ret], ASE Master Medium/Heavy Truck & Auto Technician USA -2002 Licensed Motor Mech NSW MVIC 49593 Current 2015
TO DIAGNOSE, TROUBLESHOOT OR FAULT FIND ANY AUTO SYSTEM....
Understand how system parts interact with one another. GOOD parts can then be established & the NOT GOOD problem/s part/s isolated for repair or replacement.
TO DIAGNOSE, TROUBLESHOOT OR FAULT FIND ANY AUTO SYSTEM....
Understand how system parts interact with one another. GOOD parts can then be established & the NOT GOOD problem/s part/s isolated for repair or replacement.
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- G-Major General
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Re: Front axle hubs
In the Model T world, it is a common Bubba mod to drill, tap and add a zirc fitting to a grease cup cap. Then, it's just a matter of shooting in some grease with the grease gun on a regular basis. Maybe that is what the OP has? Someone added the zirc fitting to make it easier to keep filled?
Robert Brough
Winston, GA
2018 MVPA Honor Service Award
A jeep, a truck, and a trailer
Winston, GA
2018 MVPA Honor Service Award
A jeep, a truck, and a trailer
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