Thread: SPID Flaw
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Old 03-25-2017, 12:05 AM   #7
truckster
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Re: SPID Flaw

Quote:
Originally Posted by saxart View Post
The answer here is simple. A short-bed truck, when driven, by nature produces a vibration in what can only be called a double-ur-money sine wave. This type of sine wave reacts directly with the special ink used in the wheelbase section of the SPID labels on some trucks. For reasons unknown to scientists it seems to affect mostly low-optioned trucks. Theory has it that the weight of extra options, or option packages, causes a dampening effect thereby canceling out said SPID destroying vibrations. Many owners have lowered their trucks, in an effort to reduce the effects of this horrible sine wave, but once the damage is done, there is nothing that can bring back an obliterated SPID. The only thing one can do is to STOP DRIVING ANY SHORT-BED TRUCK!
I like the explanation. Fortunately, it doesn't seem to happen to Blazers, so there must be a specific length that's subject to those destructive vibrations.
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