1987 GMC G3500 Automatic Transmission Vacuum Modulator Parts

Rally STX 5.7L V8 change vehicle

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B&M
  • Fully Adjustable To Tailor Shift Patterns Must Have Adequate Vacuum To Make Modulator Work Properly
  • Transmission Vacuum Modulator; Fully Adjustable To Tailor Shift Patterns;
  • Transmission Vacuum Modulator
  • Product Attributes:
    • Instructions Included: Yes
    • California Proposition 65 Chemical Name 1: Cadmium And Cadmium Compounds
    • Package Contents: Modulator Valve
    • WARNING CA Proposition 65: No
  • Features:
    • Fully Adjustable
    • Allows You To Tailor Shift Points
    • Comes Supplied Pre-Adjusted
    • 1 Year Limited Warranty
  • The B&M vacuum modulator is fully adjustable and allows you to fine-tune your shift points and shift feel. This is done by turning the adjustment screw inside of the vacuum line connection for more or less diaphragm preload, thus raising or lowering part throttle shift points and line pressures. For GM TH350 and TH400 automatic transmissions.

Additional Fitment Information:
Vehicle Transmission Manuf. Code
1987 - GMC G3500 THM400
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