No cone sure-grip is any good when you apply power and traction!

I didn't pay attention to JohnRR years ago and junked a brand new Mancini built 742 cased 3rd member after just one season of hard use.

~$1,300.00 in the garbage.

Dana 60 and spool for the win.

'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.