Naw, nothing wrong with a 741. Although for your green car, "I" would use one of the others for the larger pinion shaft. A 10 second car might find the difference. lol
The green car has a 742. I could put it in the blue tank, and do a 9 inch for the green one. Would only need to move the perches. This donor was just an easy bolt in. Was praying it had a sure grip. No dice.
