

B&M 20234 Adjustable Vacuum Modulator
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Steven Justice Jr
07-06-2025Great product
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Frank
> 3 daygreat item fo the price, than you.
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Blue & Silver
> 3 dayWorks as it should.. Great job
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Charlie swoboda
> 3 dayEasy to adjust and let me set the shifting where I wanted it
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Stone
> 3 dayIt worked as advertised.
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Brad
> 3 dayThrough this in a used transmission and works fine so far. Bought this one for the name behind it.
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the starfish
> 3 dayI bought this to replace a leaky modulator on my 1976 GMC motorhome with a THM425 and 455ci Toronado engine. The shift points were perfect out of the box, no adjustments needed.
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Mary
Greater than one weekWorked great....