Took a while to find out the lug nut size for my rear axle -- from an S-10 Blazer -- Some pages aren't as complete as others... So far this page seems the best to find out the size of lug nuts ... http://www.themainresource.com/Merc...e/Lugnut Cross Reference Make_Model_Size.pdf It doesn't go way back, for example to Ford F-1 or F-100 and for some reason many lists give the older Ford nuts as 1/2 (or 1/2 RH) without specifying the thread pitch (which is 20) Anyway if you are looking for lug nuts I hope this helps. Oh it seems the S-10 blazer nuts I need for my 1992 axle are 12mm X 1.50
I think those can also be changed out with 78-81 chevy malibu 7/16-20 studs so you can standard (non-metric) lugnuts. This is quite handy to know if you are running 70-81 camaro rotors up front.
The Jalopy Journal
