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It also might be useful for owners ofother GM brands such as Chevrolet, Buick, Oldsmobile, Cadillac, GMC,Holden, Opel, Hummer and Saturn.

Specific cars or trucks that might havethe same basic procedure for replacing the wheel bearing hub assemblyinclude the Regal GS, Grand Am, Monte Carlo, Impala, Lumina, Intrigue,Cutlass Supreme, Eldorado, Riviera, Century, Monaro, GTO, G6,Bonneville, Firebird Trans Am, and the Fiero.

A few compatible replacement front wheelbearing hub assemblies with their part numbers are as follows: ACDelco FW293, Prime Choice Auto Parts HB613123PR,Detroit Axle 513121, GMB 730-0003, Timken 513179, DuraInternational 29513179, Precision Automotive 513121, CallahanC513179 and Raybestos 713179.

Please verify the correct replacementpart number for your vehicle by using the Amazon Part Finder website.The correct part may vary depending on the model year, trim leveland whether it has an ABS (anti-lock) braking system or not.

We used a 'Made In China' DynaPakbrand hub that immediately caused a loud popping noise during lowspeed parking maneuvers.

Recently the other GM OEM wheel hub began towear out and cause a loud droning inside the car from the friction ofthe worn metal bearing.

The sound of a wheel bearing that needs to bereplaced is similar to the road noise created by low quality tires butmuch louder.

We researched the different wheel bearing brands onlineand read consumer reviews. It seemed that most people disliked theChinese made replacement parts due to their lower quality.

Removal of the frontaxle nut on GM E-Body and W-Body cars requires a 36mm socket.

The axle nutsocket wouldn't fit through the hole in my wheel where the 'Pontiac' centercap pops in so we had to use the spare tire instead.

Lowering the spare tirein contact with the garage floor kept the wheel from spinning while removingthe axle nut using a breaker bar.

If you own an electric or air poweredimpact wrench, it makes this part of the procedure much easier.

It's also possible to remove theaxle nut without using the spare tire and lowering the car.

You can place alarge screwdriver in one of the brake rotor's vanes and it will hold thewheel hub in place against the brake caliper while you remove the axle nut.

During the upward rotation, the bar came very close to making contactwith the pristine Galaxy Silver Metallic paint on my beloved Grand Prix GTP.

The front brake caliper is held on by two 15mm bolts thatmay require a small breaker bar to loosen.

We rested the brake caliper onthe car's shock tower so that it wouldn't hang down and place stress on thebrake lines.

The next step is to slide off the brake rotor and place it outof the way.

Then we popped apart the ABS(antilock braking system) wire connector that is attached to the wheelbearing hub assembly.

Next the three 13mm bolts on the back of the hub canbe removed, again with the help of a small breaker bar.

We had rented an axle pullerfrom the auto parts store but it was unnecessary since the old hub came offeasily without much effort.

The hub on the other side of the car justrequired a small tap with a common hammer to free it from the spindle.

The old OEM GM hub pictured in therow above and below had about 73,000 miles on it before it began to makenoise.

I recommend buying the OEM General Motors ACDelco FW293front wheel bearinghubs since they have excellent reviews on Amazon and seem to last a longtime.

Imentioned above that the Chinese made DynaPak hub was the cause of a loudthump, clank, pop or banging sound in the front end of my car during lowspeed turning such as in a parking lot.

We visited a few parts stores before finally buying twowheel hubs from CarQuest that were assembled in Korea but contained Americanmade bearings.

The CarQuest Korean brand hubs appeared to be of a muchhigher quality than the DynaPak brand and but not better than the GeneralMotors original equipment manufacturer parts.

The grand total for the twoassemblies was slightly less than $400 with a one year replacement onlywarranty.

We guidedthe ABS sensor wire through past the axle and pushed the hub onto thespindle.

Make sure that you don't forget to reconnect the antilock brakesystem at this point.

Also be sure that the hub was mounted with the ABSwire at the bottom of the assembly so that it won't rub the axle boot.

To keep the bolts from vibrating loose, applya small amount of high strength Loctite Redthreadlocker.

Then you can line up the metalbracket, re-attach the three 13mm wheel hub bolts, put on the brake caliperwith the two 15mm bolts, replace the brake rotor, and tighten the axle nutwith a torque wrench.

I read on a message board that the torque settings forthe caliper and hub bolts was about 100 foot pounds. Finally, the wheels cango back. Use a torque wrench totighten the lug nuts to about 100 ft-lbs.

That'sit! I hope you found this guide useful for your wheel bearing hub assemblyreplacement.

If you also need to replace a GM power window motor &regulator or perform an Eaton M90 superchargeroil change, click on the preceding links.

For more, check out all of my Pontiac Grand Prix DIY Repair & Maintenance Guides.

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