Lock Motor Differences IF THE IMAGE IS TOO SMALL, click it. The…

Lock Motor Differences
IF THE IMAGE IS TOO SMALL, click it.

The early lock motors are prone to water intrusion; both in the motor itself, and in the spiral BB mechanism, causing poor performance, high current draw, & eventual failure. They were used in F-series/Bronco FRONT doors until '91, and crew-cab REAR doors until '97.

But by changing the connector & the mounting bracket, the later motor can be swapped in. It's possible to R&I the early motor simply by accessing the door interior. But for the later motor (with Z-bent pushrod), the door latch must also come out.

Owner caption November 2008 · Photo 2449 of 5000