87 5000TQA Anti-Lock Brake Problem

Kneale Brownson knealeski at sbcglobal.net
Thu Oct 11 10:22:08 PDT 2007

Part Number for the ablative caps used to properly space the sensors is 437927809.  World Impex lists four for $10 or so.  I think I bought 'em for about 50-60 cents apiece years ago when I had an 87 5ktq through a dealership.

Bernard Littau <bernard.littau at gmail.com> wrote:  No, don't just tap them in until they meet the cogs, that's too close and
will likely damage the sensor the first time a spec of dirt gets in there.

The little plastic cap sits atop the sensor, and you push the sensor +
plastic all the way in until it bumps the teeth. The plastic has a
sacrificial piece that gets sheared off in use . This allows the sensor to
be placed at the correct distance and still have an air gap.

The key is correct distance between sensor and teeth. You can guesstimate
it and nudge the sensor in and out for effect, but that is a lot of work
since you need to drive a bit between adjustments if it's not right. The
plastic caps are the sure-fire factory-approved one-shot adjustment.

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