T-18 Input Shaft

[Whitelighting]

In 1968 to 1971 Jeep Wagoneers and Jeep trucks came with 350 Buick motors and wide ratio T-18's. I'm looking for a source to buy a new or used main input shaft for this T-18. The overall length of the shaft is 12 & 7/8" + or - , the stick out length is 10 & 1/4" + or - , the tooth count is 17 and the clutch spline is 1 & 1/8" 10. I appreciate any help.

[Bachman]

I would check Novak Enterprises or Advanced Adapters. They seen to have all the stuff to make everything work with everything else.