Strength is about the same on the 208 and 241, they r both aluminum. As far as gearing goes the 241 has a lower lo gear I think its 2.72:1 and lo in a 208 is 2.61:1. You have the 4L60 tranny right, it should have the same bolt up pattern that a 700r4 has(99% sure) which was mated to a 208 or (optional) 241 in some of the later 80's.
Hope this helps. You shouldn't have a problem bolting up a 208 to your tranny (98.9% sure), somebody correct me if I'm wrong.
<font color=blue>Professional <font color=red>JEEP EATER</font color=red>, it's a population control thing.</font color=blue>