Differential Gears Question

[dakine]

I own a Chevy truck, the original gears came with 373, I put in 411's, will I have to change my front differential gears, or will they match up? My tires are 285-75-16's. Any ideas?

[thecarguy]

I always reccomend changing both at the same time.

[danny]

as with running the same size tires it is highly recommended to run the same gears.