Early front u-joints

Ft. Wayne Clutch made a slip-joint replacement drive shaft that mates up to the flange on the transmission for my '65 Dart when I installed an 8-3/4 rear.
Much less than $500.
Their contact info is below:

FT WAYNE CLUTCH INC. 2424 Goshen Rd. Ft Wayne. 46803. 260-484-8505.