Technical T spring in an A

28 hiboy fenderless roadster.

Any tricks to fitting a T rear spring to a stock rear A arch , including tips on making up for the difference in width of spring.

Modern diff, so will have to weld shackle carriers on .

How many leaves should I aim for, and what distance does it end up from axle centreline to top of spring and what hole to hole distance does it finish at ?

Are all T springs the same, except for number of leaves , or do I have to chase a year ?

Pics would help.

TIA

 

The search function is your friend.....Lots of info already