I had a 4L60E that I installed in a customers truck. They put 200 miles on it and it started slipping.
Worst part about it was trying to find someone to help us out. Once we were able to talk to the right person. They literally shipped ANOTHER transmission down to me first, so that my customer would have less down time and then weren't really worried about getting the other one back. Not sure what yall did to *** them off, but I'm thinking about becoming a dealer for them.
Shipping and everything was taken care of. Not very many companies are willing to do that.
Review about: Monster Transmission Customer Care.
Reason of review: Reliable warranty.