Jounce and Rebound Systems

The jounce bumper is the upward movement or compression of suspension components and is used to stiffen the suspension gradually as it approaches the end of the jounce travel and prevent metal-to-metal contact that could lead to suspension damage or failure. Also called as “bump stop”. The jounce bumper absorbs impact and dampens noise, vibration and harshness during shock impacts caused by heavy loads, potholes or objects in the road. There are four types of jounce bumpers supported in the Truck Library.

• Front/rear external jounce bumpers
• Front/rear internal jounce bumpers
• External bumpstops-property file based
• Internal bumpstops-property file based

Rebound is the downward movement or extension of suspension components. There are four types of jounce bumpers supported in the truck library.

• Front/rear external rebound bumpers
• Front/rear internal rebound bumpers
• External reboundstops-property file based
• Internal reboundstops-property file based