Have to replace rear wheel bearings on 1987 sierra half ton

not very much info. 1/2 ton? 2wd? If it is a standard pickup there are "C" clips that hold the axles in. You will have to remove the 3rd member cover and remove the clip. This is after you have removed the wheel and brake drum. The axle will slide out and the bearing will remain in the axle housing.Messy job. Take it to your mechanic.

Replace them both at the same time. You\'ll need a shop press to get the old bearings off and to push the new ones back on. There are 4 bolts on the bearing cover behind the flange that have the studs on it that holds on the wheel. Take them out then take off the cover on the rear end. There is a horse shoe clip that holds the axle shaft to the gears. Remove the clips and pull the axle out.

It is real simple. If it is an F-150 it is a half ton. If it was a 3/4 ton, it would be an F-250.

Remove your belt and see if you can pull the power steering pump pulley off by hand. I have had the shaft of the pump break before and everything looks still good and fluid level still full. Then I removed the belt and the pulley and half of the broken shaft just pulled right out of the pump. The pump could still be bad even if the level is good. Lift front off of the ground and inspect your steering components and make sure your wheels turn freely.

you sure its not the serpintine belt not making the noise?..or idler pully? unhook belt and try spinning the compressor and listen for the squeek

I would guess belt, bearings typically wont stop unless they are lubed.

check wheel bearing... and make sure that the metal shims are installed with the pads. they prevent noises

take off rear hub u have a inner and outter bearing ..change bearing dont forget to pack new bearing well with a GAA Bearing Grease...and install wheel and tighten middle nut till wheel is tight...then back it off enough that wheel turn but not too freely about half a turn back....GL

where do you buy them at. try buying a better brand. like from napa or carquest.

260 neutons is the correct pressure for the wheel bearing.i have done tons of these.good luck.