My original bolt heads were in terrible shape when I first changed mine. Some options that helped to get them all off included:

1. Clean them with a wire brush to get rid of loose corrosion
2. Use a 1/2 socket instead of a 13mm - slightly tighter.
3. Use a approx 13mm socket extractor (a socket that bites into the head when turned counter clockwise, and can be bought at any parts store, by Irwin typically).

I used the 4wheelparts.com bolts when replacing.

 

no problem! Was going to look this thread up soonish to have the info on hand again...more Jeeps more problems hahaha.

On a side note these bolts lasted all the way until I sold the beast after an accident in 2015, out lasted a few hub assemblies and a lot of abuse lol.

 

mine is a 99 and full cast, I bought a bolt with the sizes you posted, no where near the right size

 

Agreed. Just did my ball joints this past weekend, so obviously had the factory bolts in hand. They were no where near a M12. I didn't measure them (mine came out fine and went back in fine), but my guess is M8.

2000 xj, for what it's worth.

 

Agree on m8

 

Doesn't mean that the information isn't right, if you take the few minutes to breeze through the other posts in this thread, there is mention of another size, which was documented before this issue.

 

I took the time. Wasn't the first time I saw the incorrect size. Someone else said m8, 125...that is also incorrect. I have a 99 sport with full cast...same as him. No reason they aren't the same size other than it's wrong.

 

97 XJ


Dorman 917-509 were the replacement hub bolts that I ordered. Available at parts stores and Amazon.