BJ42 parts question for someone with OEM parts book?

[Roberto]

what is a Integration Relay part number 89641-82103 for 80-84 BJ40,42?

also what is a revolution detector part number 63180-80080 for same application as above?

Thanks
Rob

[Henry James the 47th]

I don't have a parts book Roberto, but I believe that the 'revolution detector' (no, it's not Homeland Security) is the tachometer pick-up which screws into the bellhousing.

As for the 'integration relay', that's a kind of multi-faceted management computer usu. associated to power windows, power doorlocks, airbags, stuff like that. I found a picture of the exact part, posted below:

[Roberto]

Thanks brother, the integration relay says is for a 80-84 BJ42 in which I have never seen one on mine? If so where is located? PW, LOL not on mine?

Rob

[Henry James the 47th]

I've never seen such a relay on a 40 series truck, and i've stared at quite a few. I've never seen it referred to in the electircal section of any of the 40/60 series FSM's that I have.

If it does work on a BJ42, I wonder what it would be used for? There's no airbag, no headlamp cleaner, etc.