Besides lubricating the pulleys, spray lub the cables. The broken strainer most likely had some water left in it an it froze and broke. Happened to me. If it is not stored inside, get a cover such as a Adco. It will keep it looking good and help slow the hardening and cracking of the sealing material on the seams and around windows and the door.
Jim L & Faye
2003 Silvarado diesel crew cab
2017 Silvarado, crew cab 1500 6.2L gas w/ 8 speed tranny