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97 Grand Prix GTP Wheel Hub Bolt Sizes

J

jpearsall187

New member
I have to replace one of the front wheel bearing/hub assemblies on my 97 Pontiac Grand Prix GTP. I wanted to get information on the 3 bolts that go into the back side of the hub assembly and hold it in, as I want to replace these during the procedure. Does anyone know the sizes (thread distance/size, bolt length, etc.) of these 3 bolts and where I can get them so that I can do so before I begin the process? Thanks
 


Believe they are 13mm heaed size, not sure on the rest. Why do you want to replace them? If they aren't torn up at all then just reuse them. I just stick a little loc-tite on them on reinstall and torque em down. Still rocking the original bolts after at least 3 new hubs on either side on the fronts.
 
I have replaced the hubs once before and my car is pretty old (205,000 miles). I just wanted to have them and replace them for good measure if I could find out the sizes.
 
As long as they look fine and the heads aren't rounded off you should be good to go. I've got 328K on mine and they've never come loose after reinstall. Worst case pay a visit to a GM dealer and have them look it up.
 
They are 13mm. I made a mess of one the first time I did the bearings, but re-used the nuts. I had to change one bearing a few months ago, and the messed up net gave me no grief at all. I wouldn't worry about them unless they are fubar'd.
 


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