Vehicle wobble between 70 and 100

Hello, I have the following problem: My Opel Movano/Renault Master 3, 0 cdti wobbles with a strong acceleration between 70 and 100 km/h. It feels like it’s shaking from the front. At first glance there’s an imbalance. However, there are a few differences. The problem has appeared for the first time after I dismantled the front right wheel to change the brake pads. After I realized that it was a “floating” (or how hotly hot) t the) brake caliper I did trade the wheel again without changing anything. Right after that the wobble has appeared. Whether the accident is, I don’t know. The steering wheel does not wobble at all. You can only feel it, because the whole body is shaking. If I speed very slowly, the wobble does not occur. Everything is good. If I let the car of 120 slow down no matter whether by braking or just taking away gas the wobble is also not there. oh, that I have a completely different problem. Oh yes, it doesn’t matter which gear is in it. Has anyone ever experienced this before? Is this perhaps an imbalance in the bike? Greeting Karsten