Quote Originally Posted by JoshS View Post
I've never seen any acknowledgement by BMW for the diff mount/trunk floor problem, just like I've never seen anything for the E36 problem.

Therefore, such a dealer-installed repair would not be legal in IT, even if a verbal agreement with a BMWNA employee allowed BMWNA to pay for the repair.
Just because the GCR mandates that the manufactures provide XYZ (in this case it's a document stating dealer repair methods) to a racer doesn't mean that the manufacturer will. In this case of drastice chassis repairs, there is probably legal liability reasons for the absense of such a document along with proprietary reasons. Just because the document doesn't exist doesn't means it strictly illegal either.