this should help you
GM Camaro/Firebird 1993-1998
The CKP sensor provides a signal through the ignition module which the PCM uses as a reference to calculate RPM and crankshaft position.
The best method to test this sensor is with the use of an oscilloscope.
See Figure 1
FIG : Fig. 1: Crankshaft Position (CKP) sensor circuit-3.8L engine
See Figure 2
FIG : Fig. 2: Crankshaft Position (CKP) sensor circuit-5.7L engine
See Figures 3 and 4
FIG : Fig. 3: Exploded view of the crankshaft position sensor shield-3.8L engine
FIG : Fig. 4: The crankshaft position sensor on the 3.8L engine is secured with two studs
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i thing it is a 22-24mm...you will need a wheel puller to remove the crankshaft pulley.these tools may be rented at your local parts store
this may help you
See Figure 3
FIG : Fig. 3: Exploded view of the crankshaft balancer mounting - 3.8L engine
The crankshaft balancer is serviced as an assembly. Do not attempt to separate the pulley from the balancer hub.
if you what to get it loose,,a good way to do this is with and air impact wrench.....other than this,,,you will need to hold it
i don't really know what you are asking here.....but
are you talking about for the puller?
it doesnt mater how deep they go......
if you are talking about installing.....when the pulley is on the key way it is right