strength between a large yolk in a small yolk

IMO, you'll have a hard time busting anything, even a 7260, with a 340 and 3K converter.

Curtis Tatton builds a great driveshaft for the money. I've had one before and one currently in the orange bomb. Good guy.

There is a member on here. BB that had a bunch of spray 800+ to the tires and ran 7260's for years. Never broke one. Them lil U Joints are pretty flipping tough!