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Re: [GMCnet] Installing Grease Zerks For Front Wheel Bearings [message #124360 is a reply to message #124333] Tue, 03 May 2011 08:31 Go to previous messageGo to previous message
Larry is currently offline  Larry   United States
Messages: 2875
Registered: January 2004
Location: Menomonie, WI
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Robert Mueller wrote on Mon, 02 May 2011 23:15

Mark,

To grease the front wheel bearings on a GMC that has zerk fittings
installed:

1) Loosen all wheel nuts on the front wheels.
2) Jack GMC up high enough to get front wheels off the ground.
3) Support the GMC on jack stands.
4) Remove both front wheels.
5) Thoroughly clean the housing of the outer CV joint and the back of the
steering knuckle around the CV joint.
6) Remove the cotter pin from both front axle nuts.
7) Have an assistant sit in the coach and apply the brakes while you loosen
then remove the front axle nuts.
Cool Push the front axles (CV joints) inwards as much as possible.
9) Attach grease gun to the grease zerk and pump grease into the bearing
until you can see fresh grease coming out between the seal and the CV joint.
10) Push the front axle back into the hub, install the axle nut and torque
it as per the Maintenance Manual then install the cotter pin.
11) Replace the wheels and hub caps.

I've typed this from memory and if I've over looked anything or screwed it
up PLEASE correct me.

Regards,
Rob M.



I guess I would move #6 & #7 ( Remove the cotter pin from both front axle nuts and loosen then remove the front axle nuts) up to #2. IMO a lot easier to loosen the axle nut when it is on the ground and in park. I'd still have someone stepping on the brake so as to not stress the parking pawl in the trans. JMHO


Larry Smile
78 Royale w/500 Caddy
Menomonie, WI.
 
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