Aldo, I don't believe you'll be able to get any kind of grinder in the recessed area where the T-arm bolt is plus you'll probably have to cut both ends off.

Leafs from springs can be rearched. You'll just have to see if anyone does that where you are.

Great deal on your insurance.

 

When I removed the front trailing arm bolts I taped up half a hack saw blade with duck tape and went at it after I got a few of the shims out, took a while but it worked. That is one tight spot to work in. A sawzall will make it a lot easier and quicker.
I used poly bushings and new ss shims. PG.

 

Glad you got 'em out. Before I got a Sawzall, I did as you did with the taped hacksaw blade. Not much fun but got it done.