Quote:
Originally Posted by Opie
The "problem" with Subaru lug studs breaking is usually due to being over torqued. They are made to only be torqued to around 89 ft/lb. Most shops use air or electric impacts that tighten them more than that and over time they stretch and seize or break.
They are somewhat easy to replace, and inexpensive. I have made the switch to ARP's on my track car, but in my 25 years of owning Subaru's have only had to replace maybe 3 for actual breakage. Matter of fact the 20 I took out of my BRZ I kept and use them on the rebuilds we get that have broken ones.
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I've never had a stud failure on my cars. We have had 1 on my Mom's FXT. Part of the issue is the studs/torquing, but I think the OE lug nuts are extra soft. We have found stretched threads on many. Bad thread on lug nut+90 ft/lbs will wreck a stud really quick.