that it would be a straight interchange with few differences. i think that the 2.6 might have a lower axle ratio to compensate for lack of torque, so if you keep the standard gears in the 300 you should get better mileage but will give up noticable grunt on take off.

if it bothers you, you have the 2.6 to change it out with.

btw my book is a little fuzzy on this so i would verify the axle ratios before making a final decision on it.

tom w.

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[SIGPIC] Diesel loving autocrossing grandpa Architect. 08 Dodge 3/4 ton with Cummins & six speed; I have had about 35 benzes. I have a 39 Studebaker Coupe Express pickup in which I have had installed a 617 turbo and a five speed manual.[SIGPIC]

..I also have a 427 Cobra replica with an aluminum chassis.