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1979 GMC C2500 Brands
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B&M Vacuum Modulators will help you to perfectly calibrate your shift points withing a range of 2-4 mph. They are crafted in gold cadmium finish and an O-ring seal to avoid leaks. Available with pre-adjusted shift points for your convenience.
Fitment:
1979 GMC C2500 BASE, High Sierra, Sierra Classic, Sierra Grande / 4.1L L6 GAS, 4.8L L6 GAS, 5.0L V8 GAS, 5.7L V8 GAS, 6.6L V8 GAS, 7.4L V8 GAS
$48.95