shackle and tbar lifts for a 2003 blazer
 

What all goes into putting a shackle and tbar lift? I've seen them with body lifts and I really like them. The RC lift is just to damn expensive to install and I'm looking to put 31's. Any help?

Can be done with body lift and trimming of front fenders. But then you will be replacing ball joints, hubs and axles because of the stress put on them. By then you`ll have spent enough to put the RC lift on.

So what exactly are shakles and adjusting the torsion bar for a loft

In short, a bad idea ;)

'TBar Crank'is a modification which puts the suspension outside of its design parameters leading to early componant failure and unpredictability in handling.

^^^ Perfect!
If you want a bigger truck, buy a Silverado!
It'll be cheaper and safer in the long run.
31's will fit without any modification too!