We have install Jasper Engines and have had zero complaints. There are procedures for installing the Engines & Transmissions. I can tell you we install and use the correct procedures and never have we had a problem. I can just speak from our Shop Experience. We haven't had problems. We have been very pleased. Some customers, they just don't do the maintenance that is required like changing the oil, transmissions  fluids ect...when they should. We see it all the time. That's why the first Engine or Tranmission went bad in the first place. - Anonymous (Review found on Jasper Engines and Transmissions)

Reason of review: Reliable warranty.