Oxygen Sensor's

[JJ_lkey]

Just wondering if any one else has run into this on there 4.0 ranger, im installing my pacesetter headers and plan on replacing the upstream O2 sensor's. Drivers side is F5WF-9F472-BA, Pass. side is F4ZF-9F472-BB. The parts store says they both should be the BA. Any thoughts on this??? Oh yeah it's a 96 w/ auto.

 

[adsm08]

It's likely that the difference is in the length of the pigtail, and that the BA would bit both sides, but the BB would be too short on the driver's side.