3:73 or 4:10 axle ratio....?

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Hi guys & or gals...... About to order a GMC 2500HD w/Duramax diesel-Allision. Anyone have any input concerning Diff ratio...?
 
If you're even thinking about it, go ahead and get the 4.10.  The Duramax will do you good, but the 4.10 will really make it solid. You won't regret it.
 
Sidecar Sylvie said:
Hi guys & or gals...... About to order a GMC 2500HD w/Duramax diesel-Allision. Anyone have any input concerning Diff ratio...?

No problem the Duramax only comes with 3.73 rears.

Nelson
 

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