difference between 3.7 and 4.1 gears for 6.0 vortec
I'm about to bye a new GMC 2500HD, it has the 3.7 gear ratio. My question is, what is the difference between this and the 4.1 gear ratio
I'm about to bye a new GMC 2500HD, it has the 3.7 gear ratio. My question is, what is the difference between this and the 4.1 gear ratio
2011 GMC Sierra 2500HD
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