I've done this job a couple of times. You WILL need to measure the diistance from
the airgap in the original sensor to a known good point. ( crank center or edge ). You only have like 1\16 of an inch to play with. get it wrong and the sensor is toast.
Also, the puller for the crankshaft, be sure NOT to screw the bolts in too far. One of the bolts goes into the reflective material on the back of the balancer.
Do it from the bottom wheel well. Be sure and replace the cover and
you may want to repalce the seal at this time also.
1992 SSEI Bonneville with all the options except heated windshield and ride control.
Mods Include 1998 SC'd Delco Ignition with Belden wires.
Autolite 104 plugs ,180 degree tstat
K&N Filter with ricepipe, 2.3 inch pulley with ZZP idler
Ported exhaust headers, Poly end links.
High flow cat. TPS tweak, Boost bypass mod
High low fan override.
" Always try it yourself. I bet the guy you pay to repair it broke a few before he fixed your'*. "