Dorman 742-250 & 742-251 Window Lift Motor Tech Note - Ford Install Tips

This document is a Dorman tech note (with added annotations by the uploader) covering Dorman replacement window lift motors, part numbers 742-250 and 742-251 (left and right). It explains that on these replacement motors the distance between mounting holes is approximately 66mm, whereas some original equipment motors they replace have approximately 62mm hole spacing. Many OEM and replacement window regulators have an elongated third mounting hole that accepts motors with either the 62mm or 66mm spacing; if the regulator's hole is not elongated, the note instructs the installer to elongate it with a file or rotary tool so the new motor interfaces correctly. Handwritten/typed annotations (shown in red/brown text) add practical installation tips: for the left door motor, the annotator says it is not necessary to elongate the hole on the OEM regulator — instead, a 1/8" tap hole can be drilled because the motor comes with self-tapping bolts; the annotator mounted the motor with the other two bolts before tap drilling and driving in the last bolt. Another annotation notes the window regulator is heavy steel and unlikely to wear out. Photos show the motor with an arrow to the relevant hole and the regulator sector plate identifying the hole to elongate.