Forum Discussion
twodownzero
Jun 07, 2019Explorer
Grit dog wrote:
I’ve heard of it moreso with Cummins engines but I’m sure others are just as susceptible.
Another strange one, Buddy has a mid 2000s Chevy 3/4 ton. Sees a lot of salt and mag driving I-90 pass here in the winter. The rear diff housing rusted clean through and was leaking.
Had to be a thin spot in the casting as the truck isn’t rusted out and even though the mountains are like living in the rust belt, if you drive to the wet side of WA regularly, you get a complimentary fresh water undercarriage wash almost daily all winter!
The axle tubes are .500" thick and the casting is double that in places.
Far more likely the sheetmetal cover rusted through, not an inch of cast iron or the steel axle tubes.
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