Just got done rebuilding the engine coupler, found all the parts required. listing the part numbers from Neapco but may be crossed reference, they are 1000 series PTO yokes. I measured and found the dimensions at https://www.neapcoaftermarket.com/wp-content/uploads/2019/11/2001ptocatalog637.pdf
Engine/transmission coupler U-joint/ Neapco 1-1071
Center yoke Neapco 10-5303 (1-11/16") / 10-5361 (2.50")/ Dana 10-26-47 ( 2.125")
End Yoke/ Neapco 10-0463 (7/8" hole 1/4" key/ 2.50 L)
Neapco 10-0493 (1" hole 1/4" key / 2.50 L)
Neapco 10-1703 (7/8" hole 1/4" key/ 1-11/16"L)
Neapco 10-1705 (1" hole 1/4" key/ 1-11/16
Danfoss pump shaft seal is NOK 16253-16 replaced it with McMaster-Carr #1199N66 (McMaster-Carr
Engine/transmission coupler U-joint/ Neapco 1-1071
Center yoke Neapco 10-5303 (1-11/16") / 10-5361 (2.50")/ Dana 10-26-47 ( 2.125")
End Yoke/ Neapco 10-0463 (7/8" hole 1/4" key/ 2.50 L)
Neapco 10-0493 (1" hole 1/4" key / 2.50 L)
Neapco 10-1703 (7/8" hole 1/4" key/ 1-11/16"L)
Neapco 10-1705 (1" hole 1/4" key/ 1-11/16
Danfoss pump shaft seal is NOK 16253-16 replaced it with McMaster-Carr #1199N66 (McMaster-Carr