Air Ride and Driveshaft Advice

[trebeck]

Advice needed please.

Did a brief search for this topic - but didn't have much luck.

72, LWB C10.

What type of driveshafts are you guys using with the ART Cool Ride rear setup: original 2-piece or a 1-piece?

Initially I thought a 1-piece was the only route to go, given the new ART crossmember - however my driveshaft guy gave me a some grief regarding strength/rpms to cover that distance (69 5/16")...said it wasn't a huge issue, but did tack on a bit more to price for 3 1/2 steel, balancing, etc. Which led to my thinking about the two piece option - i'm assuming i would need to fab something to the ART crossmember for the union of the two?

Thanks in advance for any assistance.