false, that and the kickdown lever tell it when to downshift.
I noticed it was off when I took off a cutout in my exhaust to put some collector gaskets on it. I drove to the gas station like that and all I can say is that my truck without a muffler is annoying loud, perfect for alto
Your measly 351 is no match for my muffler-less 400!!
2010 VW Jetta - DD, 5 Banger, 5 Speed, 1000 Watts of sound!! 1979 Ford Bronco Custom - 400/T18/205.. 35" SSRs, 4" lift, Rancho 5000s, 200 watts of sound!!