so while replacing the rear brake lines in my 2001 F-250. / 5.4, the flex line that drops from the frame bolts to the axle through the axle breather threaded vent line. The friggin thing crumbled on me and now I can't find a replacement for it. Any ideas on where I can get it or what it's actual name / part number is so I can call the Ford dealer and hope it's not obsoleted?

 

For situations like yours I usually just go to my dealers parts counter, give them the VIN and they find the right part #/part.

 

You need one of these: Axle Vent | Rear Axle Differential Vent | 924-263 | Dorman Products

or

FORD F5UZ4022A Case Vent | RockAuto

 

that's fantastic! thanks and ordered.

 

You're the man. Thanks for this. I couldn't figure out which one it was since mine was crumbled also while doing braided line install. Dorman 924-263 is what I'm gonna look for.