I had trouble taking the udp or crank pulley off.. But I got it done with a little work..
heres how I did it
I wedged a wrench between two bolts from where the flywheel is held on and butted it againts the bolts
for the engine stand.
Next I used a 1/2" ratchet wrench witha 21mm socket and a noter ragular wrench for leverage..
worked great for not having any air tools.. and being by myslef..
So I replaced the water pump and t/b along with the pulleys and tensioner....Next will be cleaning the oil pan gunk out getting installing the intake, fule rails, and valve covers..