If you tow - go with the steel (more $$, but worth it). I think Fred is charging $300?? Plenty of guys have stated they tow with the aluminum, but personally would feel safer with steel.
Otherwise you should be fine with aluminum so long as they are torqued properly. May depend on who you buy them from. There some BS going on the DP a while ago (don't remember specifics), but someone lost a wheel running aluminum spacers off ebay and some cause was attributed to weak lugs in the spacers IIRC.
Otherwise you should be fine with aluminum so long as they are torqued properly. May depend on who you buy them from. There some BS going on the DP a while ago (don't remember specifics), but someone lost a wheel running aluminum spacers off ebay and some cause was attributed to weak lugs in the spacers IIRC.