B&M 20234 Adjustable Vacuum Modulator

easy install

went in like OEM and worked great for my shifting issue

My TH400 in my classic Jeep was shifting to early. I replaced this and used the screw to adjust this shift point to get the later shift I was desiring. Worked perfectly.

It worked as advertised.

easy installation, works great

I 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.

great item fo the price, than you.

Easy to adjust and let me set the shifting where I wanted it

Great product

Works as it should.. Great job