Told my Cuda has a Stroked 318?

Nice Cuda! It's mainly the highway gears that your fighting. 318 needs a bit deeper of a gear. 3:55 gears would be a cheap affordable wake up for your Cuda and still be O.K on the highway. You will find yourself in your powerband a bit quicker.It will allow that 318 to spool up!

Do you have an 8 1/4 diff or an 8 3/4 diff? 8 1/4 has a bolt on rear cover thats not quite round. 8 3/4 has a cast one piece housing and the carrier bolts in from the u joint side. There will be #'s on the side of the carrier like 741 or 742