timing gears
#2
Kenosha Cadillac
Join Date: Apr 2007
Location: S Jersey
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Well, I don't know what it is made of, but I can tell you that on 6 cyl, they should normally be changed every 90K, or at least, that is how it is on my Eagle, I looked for timing gear sets (gear to gear timing) for your truck, but I couldn't find anything, or timing chains either.
#3
Senior Member
It's my understanding that the gears are non-metal and have suffered some failures. Not aware of any standing mileage or age recommendations for replacement.
#4
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Join Date: Nov 2008
Location: Hazel Green, al
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I have a 1987 F150 with the 6 cylinder. The timing gears made it 111,000 miles and then sheared off 8 teeth.... Good news though... I changed the gears and the water pump while I was there.... she fired right back up.... and I drove back home...