1350 joints, u-bolts instead of bolts and straps for the rear yoke and good screw in studs for the rear axles are all going to be necessary if you have sticky tires and abuse it often. Trust me on this...

You said 3.54 gears so I'm assuming Dana 60?

'63 Dodge 330
11.19 @ 121 mph
Pump gas, n/a, through the mufflers on street tires with 3.54's. 3,600 lbs.
10.01 @ 133mph with a 250 shot of nitrous an a splash of race gas. 1.36 60 ft. 3,700 lbs.