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3.7 tranny to 3.9 rear?


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what kinds of things would happen if a three speed auto (3.7:1) was hooked to a 3.9:1 rear?

 

see, the rear on my dads loyale automatic is a 3.9 and maybe the slipping in first and shuddering when when shifting into second is from damage or stress caused by having the wrong rear end on it?

 

I am going out on a limb here, it's prob just worn out.

 

-AK

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Running with mismatched final drives would do absolutely nothing when in 2WD, it'd feel exactly the same as if they were right. In 4WD on the other hand... going from a stop it would just lock up, engaging it on the fly could possibly rip the tranny apart.

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