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B&M 20234 Adjustable Vacuum Modulator

(812 Reviews)
Price
$23.92
Quantity
(10000 available )
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18 Ratings
16
2
0
0
0
Reviews

  • Brad A

    > 3 day

    Fit perfect and works awesome to firm up the shifts on my 1975 jeep wagoneer with a th400 transmission. The factory setting on this is really close to what I️ wanted but I️ took it in two more turns to get it to hold the gears for a bit longer. Very, very happy with it.

  • Mary

    > 3 day

    Worked great....

  • Steven Justice Jr

    > 3 day

    Great product

  • hotrodguy

    > 3 day

    While I dont have my car finished yet, this is the perfect replacement part to go with the B&M shift kit I added, better than stock and adjustable if you need it.

  • Rafael P.

    > 3 day

    excelent i put it in a TH350 and have no problems

  • Emil L.

    Greater than one week

    Excellent product. Brought back to life my 87 Jag XJS

  • Mr. Moises Schroeder

    > 3 day

    went in like OEM and worked great for my shifting issue

  • Blue & Silver

    Greater than one week

    Works as it should.. Great job

B&M accessories help you complete your project with parts designed and selected by the experts at B&M. This vacuum modulator comes pre-adjusted for "normal" shift points, but it is fully adjustable, allowing you to customize the shift points (within a range of 2-4 mph). This unit is designed for use with select applications, including GM TH400 and TH350 transmissions. Please note: If you have a big camshaft and your engine does not make adequate vacuum, you will not be able to make the stock or B&M modulator work properly, usually resulting in late, hard shifts.

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