W124 diff swap?

[jeffreyli86]

Hello.
I have a 1994 W124 E220 Auto and I was wondering if putting in a E220 Manual diff of the same vintage would be a straight swap? The E220 Manual diff has a larger ratio and that really helps my town driving (what I do most) since the little engine has next to no torque with AC on low in the rev range..

Cheers
Jeff