Originally Posted by joe@ptech
Installing lowering springs to the F10. We use the factory spring compressor on all F Series installs. This eliminates the shock/strut housings from scratches, etc. It isn't cheap, but it makes all the difference when working on a customer's new car.
Assumed that's what that contraption was for but never heard it explained until now. So the compressor keeps them locked down and you slide them in under the guards and gradually release them?
Good to hear you're looking after the interests of your customers, even if it is under the wheels arches