2006 Grand Prix Base Front Strut to Knuckle Bolts Nut Size

[bigk8787]

First post, sure hope I don't blow it...

I'll be replacing the front struts tonight on my 2006 Grand Prix base, and I can't for the life of me find the size of the nut on the two splined bolts that attach the strut to the knuckle. I'm going to have to pick up a deep socket for this nut, so I'd prefer to get it right the first time.

Cheers!

 

[Below Average Joe]

Auto parts store should be able to look it up for you.

 

[spazzz]

21mm

 

[bigk8787]

Thank you! I saw that response right after I bought a 21mm on a best guess. Nice to have some confirmation.

 

[cheatah faheatah]

Thank you! I saw that response right after I bought a 21mm on a best guess. Nice to have some confirmation.

Harbor Freight has decent tools for reasonable prices. If you have one nearby. I don't know what you paid for 1 socket, but you can get a deep impact set for $20.