Timing chain

[ammo troop]

Looking for some advice from the masses, When
(mileage)are you folks replacing the timing chain on your explorers?

 

[rjc]

I changed the timing belt on my Ranger at 90K even though it was supposed to be done at 60 and at 90 it still looked great. I just didn't want any unexpected breakdowns. I've got 40K on the replacement. With timeing chains on the 4.0, you don't need to replace unless they are stretched out. I believe they are usually good for the life of the engine and then would be replaced during a rebuild at 150 or 200K.