Spacers came WITHOUT instructions of any kind. Emailed BronsonSales about the install instructions and warranty. They sent a picture of the spacer between the wheels, that's IT. NO, torque spec., nothing. Horrible way to do business on such an item that goes between your drive wheels. Lucky, I am a 40 year retired Certified Auto Tech and Certified Welder. As for the spacers, they seem to fit ok. I will see how they hold up after doing service or repair to the rear axle/brakes in the future. Hopefully they hold up, hopefully. As for the E.G. White booklet, I am Seventh Day Adventist & a Veteran. I do not believe including this in my order was necessary. Install instructions would have been a better choice.