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Wow!
What year is the engine? Because I've heard more people finding 27 and higher buttons in their 250's. Course these were M939 series trucks. I guess I'll pop mine out this week after driving it. I think I'd be safe to run a 20 button without a probe.
What year is the engine? Because I've heard more people finding 27 and higher buttons in their 250's. Course these were M939 series trucks. I guess I'll pop mine out this week after driving it. I think I'd be safe to run a 20 button without a probe.