Rear end assembly problems

Top problems

How often should I change out the differential oil (rear end has dark

Ford F-150 2002 crew cab lariat 211000 miles
I see dark area as if it slow leaking. How often does this have to be changed?
Tooty from United States 6 months ago  
TO

Loud humming from rear end

Ford F-150 2004 4.2 liter V-8 Triton 500000 miles
Loud humming from rear end like I am driving an 18 wheeler
lewis from United States 4 years ago  
LE

Loud humming from rear end

Ford F-150 2004 4.2 liter V-8 Triton 500000 miles
Loud humming from rear end like I am driving an 18 wheeler
lewis from United States 4 years ago  
LE

Rear end swap

Ford F-150 2000 4.2 v6 4×4 248000 miles
How many different rear-end gear rations were put in that model truck
Silverado from United States 7 years ago  
SI
1 report 

Noise and vibration

Ford F-150 1997  340000 miles
When warmed up accelerating even slightly turning corners sounds and vibration comeing from rear end?? But not until warmed up
Wheels from Canada 7 years ago  
WH
1 report 
P .W from Canada 6 years ago
Had the same problem with a 2003 , differential clutches were sticking , Ford sells an additive that may cure the problem , or replace the clutches ,approx. $ 1000.00 fix
Comment

Shudder in rear

Ford F-150 2006 Fx4 f150 5.4 automatic 269800 miles
2006 ford fx4 shudder in rear end on take of it only seems to be sometimes
Miles from United States 5 years ago  
MI
2 reports 
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