The brackets are held in place by 2 x 13mm nuts each side. The removal of the brake booster is a PITA since you have to remove the 4x 10mm nuts down under the dash at the brake pedal assembly. The 17 or 19mm nuts on the upper control arms are pretty accessable. The battery tray could be a PITA if the bolts have rusted into nubs. They are 10mm. Overall, I have removed 4 SBs and excluding the engine rocking backwards, I think it's about an hour. Of course, junk yard cars are not treated with all the love we do our DDs but without brutalizing the donor, it's still ez pezy. Our weather is still not so hot today. Overcast and very damp. poop.