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IIRC all 6.5L PCMs have cruise capability, as it is controlled directly from the PCM to the injection pump electronics (94 and up). I would remove your steering column trim and see if there are wires on the vehicle side of the multi-function switch connector that do not have mates coming from the switch. If so, I'd guess they're the cruise wires, and replacing the MF switch will make the cruise work.
 

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sledog;1550659; said:
:eek:

Whoa! how bout going the easy way first and pop the hood open and look for this hanging off the firewall:


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If you see that. Its your cruise control module. If you don't see it, I would be guessing the truck never had cruise from factory.
IF it was 93 or older. 94 and up have no throttle linkage, fueling is controlled electronically.
 
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