1982 trans problems

[mexlokote]

i have this 1982 had an inline 6 when i bought it, it had bad transmission,
i replaced the transmission drove the truck for about 2 days after i decided to swap to a 305

swapped the engine and has new flywheel, but i see that the torque converter will not touch the flex plate to be able to bolt it together, the bolt pulls the torque converter out of place.

so i went with it and i started the engine and will not go forward. but reverse works great.

so i tried to put washers in between the torque converter and flex plate then the bolt, this prevented the bolt from pulling the toque converter out of place
but i still have the same problem

i suspect the transmission is bad now,

now im getting a new transmission again but this time i want to know what is the issue of the flex plate and torque converter? why will they not touch each other they are like 1 inch away,