Especially on that type of tire. The extra heavy sidewalls make for a lot of heat while flexing. When they fail the sidewalls peel away in huge chunks. 

Dennis

-----Original Message-----
From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com] On Behalf Of Dan N
Sent: Saturday, December 5, 2015 3:41 PM
To: vanagon@GERRY.VANAGON.COM
Subject: Re: All-Terrain 8.5x27 tires

check the date code on those BFG...

http://www.tirerack.com/tires/tiretech/techpage.jsp?techid=11&affiliate=HM5&s_kwcid=AL!3756!3!72457434373!b!!g!!_cat:tires&ef_id=VXMgZgAAAFxRWQw0:20151205203850:s

those BFG are discontinued long ago