Thanks, guys, for all your input. Great points regarding imparted energy. The suggestion was made elsewhere, that a wire mesh or blanket lining the inside of the tunnel might be sufficient protection against fragments, assuming the driveshaft itself is restrained.
Olddog,
Good reason not to let yourself get egged on by teenagers, huh?
Jerry,
You've talked ME into a new 1350 driveshaft!
Dean,
That looks like aluminum. Ya think it would hold that driveshaft? I dunno... On the other hand, the driveshaft wouldn't have much "running room" to start flopping. Fabbed from steel, yes; aluminum,
. A good solution if you don't mind not being able to grab hold of the driveshaft and check the slop. Actually, it's similar in concept to the Buckshot tunnel.
All,
Jerry made another good point: Has anyone done anything to shield the gas line and battery cable, ie. passing either/both through say, an 18" length of stainless heavy wall tubing, pipe, etc.? I kinda like having them in the center of the frame, but there's the busted driveshaft problem again... And again, the Buckshot tunnel solves this problem, too, but I just want to be able to get at the darn driveshaft.
Thanks,
Lowell