Our adjustable upper control arms are a hoop style as seen with the majority of the suppliers that offer adjustable upper control arms using heim joints. As you can see in the photo, this can be slightly offset of the bump stop. In these cases, if you find a square bump stop that covers the majority of the bump stop plate, you should be able to provide contact to the control arm. The only time that you really should see contact of the upper bump stop is when the suspension is completely unloaded. In many cases these vehicles are lowered giving even more distance between the arm and the upper bump stop. So this tends to not be a problem. When the weight of the vehicle is taken off the suspension, for example, when put on a lift, the travel on the shock should bottom out prior to the control arm hitting. Now before anybody gets upset. Obviously this is not a good thing but when it's being lifted up slowly there should not cause damage to the shock. All, I'm saying, using these control arms for their intended purpose, there shouldn't be any issue with it making contact with the upper control arm bump stop unless the car is being lifted up off of its suspension. It's not like people are jumping these vehicles. These are designed for autocross, pro-touring or street performance. For the customer that likes to have the peace of mind of making contact with the bump stop I would recommend as stated above. Getting a large square bump stop that covers the entire please. Or move the bump stop further out on the plate. But if you look at any of these aftermarket style adjustable control arms from other vendors you will see we all run a similar design that may not make contact with the upper bump stop.
Thanks
James From
PST
