Originally Posted by sirotto
Bilsteins have an internal bump stop for on road applications. Do the 5000 series not have any? I wouldn't imagine bottoming out would be the issue.
Hell, on mine for the cars i pull them apart and half the bump stop to gain a little more travel.
PS i only have experience with on road vehicles.
Damage to shocks from over compression or over extension is unlikely to happen on the street. The kind of damage being discussed in this thread is from high flex situations typically found off pavement.
If your shocks are mounted in the stock locations, there are 4 important measurements, 2 for each side. It is 4 measurements because the distance between the mounting locations is asymmetrical. The drivers side is not the same as the passenger side.
Having a shock that is too long for the application will damage the shock when the shock is the limiting factor on full compression. Having a shock that is too short for the application will damage the shock when the shock is the limiting factor on full extension.
To do it right you must know the length from top bolt to bottom bolt when each side is fully compressed and fully extended. It is a guessing game without knowing this.
Originally Posted by Rider Eh!
Hey all, sorry to drag up an old thread but I've now blown my second Bilstein 5100 by RCD. I'm trying to understand why you guys are worried about the measurement when hitting the bumpstop. From what I can think, no matter whether you have an AAL or whatever you should always hit the bump stop the same? The only thing that the travel of the shock would limit is the extended length; ie you wouldn't have as much extension.
The only thing you may be thinking is affecting the shock to bottom before hitting the bump would be if the leaf pack is a different shape is my thought? Please help me understand :-)
This is partially correct but remember that when you lift, the stock bumps end up in the wrong place, they are too short.
I usually use a forklift to flex the suspension as much as possible to know exactly what the 4 measurements are and get correct length shocks, both compression and extension, for the situation.