from what I understand, you can use all your same setup from your original T/A, (if its good) but its a pain to press out the bearing assy ( I tried ) and then to have to put it back on and then there’s the e-brake system, and stuff. allot of time, to do this part......
im going thru the same process now, and I too want the offset vice the original, but I opted for the complete assy from vansteel, they do it all.
I called them actually last week and the guy told me that all I have to do is send him my T/A and they will disassemble, inspect, clean, and put an epoxy on it and use the main parts and replace with all new bushings, lock washers, nuts, bearings, seals, parking brake shoes and all stainless parking brake mechanism all with a 5yr unlimited mile warranty. they press it all back together on your new offset T/A and ship it to you ready to bolt on.....all for like 800 dollars if I remember correct.
hope this helps a bit.....
check out their site at
www.vansteel.com
Dave