im sure ive seen on here someone had the same problem before but cant find the thread, my crankshaft sensor doesnt fit the bracket, it wants to go too far in and then hits the pulley was going to use some washers to space it back a bit and some longer bolts but im guessing i have either the wrong bracket or sensor does anyone know? im using a 205 block with a 4 lug pulley

heres a pic sorry its not the best

 

i had the same problem, i put a 2wd sump on a 4x4 engine, but for some reason the sensor would hit the pulley, so got the bracket to fit and just spaced the sensor out with washers, think i used 6 with longer bolts, gappet it to .6 i think, done it a while ago

 

The brackets are different between 2/4wd and ST engine.