Crank sensor

[Blacky]

I'm afraid to ask this question but were there two different size crank sensors for our 86 87 turbo cars? Why going through my parts, I found two different size brackets that would hold a bigger and smaller crank sensor. I really believe the older I'm getting the dumber I am. Can somebody help me with Crank sensors for dummies.
Steve c

 

[~JM~]

Some info.

http://www.installationinstructions.com/FYI/cranksensortech.pdf

Crankshaft Sensor Install In Driveway?

How difficult is this to do on ramps in the driveway? Car has mis-fire worse when cold, no codes, runs pretty well warmed up. Which slot do you use the one near the wiring/socket or the one near the end of the sensor? Have the new bracket and bolt as well. I'm figuring about 2 days, lots of...

www.turbobuick.com

Understand the older part...

 

[Blacky]

One seems to have a part number of 25535480 and the other is part number 25526123

 

[HotAirWH1]

.

 

[TurboWh1]

The smaller one to the right in your photo was the last version I bought from GM a few years back.

 

[Blacky]

I saw a link from Hot Air 1 and I clicked on it and printed it out and now it's gone for some reason but it seems like that older version really shouldn't be used anymore as it was a faulty one

 

[~JM~]

Look at the two links I posted above. I think you will find the info you seek. If I recall correctly, the aluminum sensor you have pictured is an early '86 model. The smaller black plastic sensor is the improved late '86 & '87 sensor.

 

[Blacky]

I think jm is correct. For some reason I can't Open the link. Just got this new phone and maybe I have to work on something. Thank you for your reply

 

[~JM~]

My '87 had the aluminum sensor when I pulled the timing cover. I replaced it with the smaller one.

 

[Blacky]

I am almost positive my 87 had that same sensor and it possibly went bad and was changed to the small one

 

[~JM~]

Mine may have been replaced before. Don't know.

 

[Blacky]

I guess the point here is the other one. I have brand new is a piece of wall art