Lug nut size for 78' Regal

[87GN_ponykillr]

I know its simple but... I know the 78' uses and odd size and I want to order a new nice set, I see two sizes listed. I think it's the 1/2 am I correct? Thanks!

 

[charlief1]

That should be right.

 

[87GN_ponykillr]

Thanks Charlie!

 

[pacecarta]

not an odd size just pre metric fasteners
so threads are sae standard
7/16 -20

 

[FlintBuick4Life]

I didn`t know there was two sizes.

 

[b4black]

They switched in 1982 (and will have 'metric' stamped on them).

You can get the 12 mm to work on a 1981 El Camino. They won't go on nicely, but they will hold the wheels on.


If they lugs ever don't feel right, you probably have a SAE/Metric cross.

 

[87GN_ponykillr]

And in addition to all this, Good luck finding a nice set at a good price at your local parts store... Best I could find was $40+ at AAP and Napa only had plain open ended lugs. I got a nice set of 20 sharp chrome ones on ebay for $10! I'll have to post a picture up, I picked up a set of Ralley's that were in bad shape and refinished them and then added some new lugs. Made a world of a difference!