OE Driveshaft for a 7.25 > 8.25 A-body /6 swap

Is there an OE driveshaft that will drop-in for a factory 7.25 > 8.25 (donor is a 1974 Dart) differential swap in a '68 Barracuda, /6 with a 904?

Also, any PNs for U-joint recommendations?

I will be using a carrier out of a '91 Jeep to bolt up a 3.23 R&P. Any recommendations, warnings, or well-wishes for this mash-up?


I realize the only option might be to cut the shaft, but thought I'd throw this out there if there were any tricks I hadn't thought of. Many of you have probably already gone down this road...