Control arms hold front wheels, allowing up and down movement. of the front suspension. The control arm is an important part of the front suspension. It connects the steering knuckle (the part that holds the front wheel) to the vehicle's frame or body, see the photo.
Often, installers use grout in place of caulk for these reasons: 1  The caulk may not exactly match the grout color.  Even when the caulk exactly matches the grout color when installed, it may not match six months later (caulk will age differently from the grout).
1 Used for general construction applications, for precision grouting and for keyway and base plate grouting. 2  Suitable for grouting pre-cast concrete, steel columns, anchoring applications and heavy equipment. 3  Can be mixed to a plastic, flowable or fluid consistency.  30-minute set time.