ATRO polyurethane parts last longer than rubber parts, which results in less labor cost and less downtime cost over the life of your vehicle's suspension. Use the savings calculator below to see how much money you can save by using ATRO parts. RUBBER How many months do rubber parts typically last in your suspension? ATRO parts are guaranteed to last for 36 months. Many fleet maintenance managers have experienced their ATRO parts lasting much longer than that. Typically, ATRO parts last at least 3 times as long as rubber.     How much will you pay for parts? The figure shown is typical. Enter your actual part cost. $ $ How much will you pay for labor to install parts? The figure shown is typical. Labor cost to install ATRO parts is the same as rubber parts. Enter your actual labor cost. $ How much does it cost you to have your truck down for one day? The figure shown is typical. Enter your actual downtime cost. $ How many miles per year do your trucks operate?    How many vehicle suspensions do you maintain in your fleet:    Comparison of annual parts, labor & downtime cost for your fleet: $ $ By using ATRO parts YOU SAVE this amount per YEAR: $ By using ATRO parts YOU SAVE this amount per MILE: $ * The sample figures shown are typical of parts for a Hendrickson walking beam suspension.