Episode was directed by series semi-regular, Stuart Margolin (Angel Martin).
At the 17th minute Jolene visits Jim's trailer. This is first time trailer is at new location.
(28:59) The 1970s silver Chevy Vega (or Pontiac Astre) appears again. In the street opposite the car carrier.
In the answering machine message, the doctor refers to three fractured knuckles. This may be related to the directly preceding episode where Rockford punches his rival PI in the face and ends up breaking his hand.
The silver Chevrolet Vega is not the car only car, that shows up again and again: there is also an Audi 100 painted in light blue metallic which can be seen in various episodes. Often parked near Jim's trailer. In this episode it is parked right next to his Firebird at the golf course.