Up until about 5 years ago, I was running a MC old school crawl box with a 3 digit code without a single problem until some piece of $#!& stole my Runner
. Have never found anything from it, but after 3 years of building I'm now running MC07-R10 # 081 with total spline inputs in both cases and adapted to a 4L60E and a 4.3.
Tim J (Northern CA)