I have a 2002 screw f-150 and looking for a part # to put on some manual lockouts. Is this worth any mpg gains going to manual lockouts? Any help would be great.

 

Lockout hubs (either manual or automatic) were not offered on F150s on 1997-2003 models. To the best of my knowledge, no aftermarket lockout hubs are available for those model years, either. However, you do have a Center Axle Disconnect (CAD) on your truck which will keep your ring and pinion and front driveshaft from spinning when you are in 2wd.

Even if lockouts were available, I'll bet the mpg gain from installing them would not be significant.

 

not sure if I have a (cad) or not? The 4wd switch is on the dash.

 

All 97-03 4x4 F-150s use them. You have no locking hub options available. The lock occurs at the CAD on the axle, but the front wheels are splined to the CV stubs at all times, just like a front wheel drive car.

-Joe