B&M Modulator (BM20234)
Suit GM TH350 & TH400
B&M Modulator (BM20234)
is not in stock at Fast Lane Spares and will ship direct from supplier.
Please contact us prior to purchasing if you would like an accurate ETA.
Description
Description
TH350 400 REPLACEMENT VAC
Suit GM TH350 & TH400
Part Number: BM20234
B&M's Vacuum Modulator is fully adjustable, this allows you to tailor your shift points to within a range of 2-4 mph. Comes supplied pre-adjusted for normal shift points. 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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