I've swapped a NAG1 behind the 6.4 Hemi in my 70's Satellite and was woundering what you guys are using for a driveshaft? A one piece or a two piece driveshaft?

I'm still using the 8 3/4 rear end with 489 carrier. I'm measuring almost 64 inches between the Sonnax trans yoke and the u bolt yoke on the rear end.

The driveshaft company says the shaft will be to long and they cannot guarantee it will be fibration free over 4.000 rpm. They advise to place a two-piece driveshaft.

I prefer a one piece driveshaft.

Pictures and specs would be appreciated!