Rear End Carnage!!!!!
It hooked and even with traction bars it wheel hopped.
So, 8 3/4 behind a healthy HP motor with a stick and then traction bars on top of that. No offense intended, but how long have your father and you been involved with MOPARs? I'm sure you get some laughs at your expense at the track with traction bars on a MOPAR.
Traction bars are not necessary on a MOPAR and even have the opposite effect. You want the leaf springs to expand to plant the rear axle. A classic MOPAR drag racer trick was to take the rear spring clamps off to allow the rear of the springs to expand even further. Please dump the traction bars unless you have found some reason why they work that everyone else is not aware of. I'm sure if you try to sell them and price them right, a bow tie driver will be quick to snag them up.
The MOPAR chassis book may be a useful guide for getting you out of your wheel hop predicament. Just a suggestion.
Once again, I hope you get it back together in time for your cruise. You shouldn't have an issue as street tires shouldn't hook enough to create any future carnage.