Search results

  1. H

    Changing gear ratios...

    I'm changing out lower units on my Johnson 140 Looper. My old LU had a 2.25:1 gear ratio and ran at 5800 RPM WOT with a 14x21 SS prop. New lower unit I'm putting on is a true V6 lower unit with a 1.86:1 ratio. According to my quick math the size I should put on would be roughly a 15x17 SS. Just...
  2. H

    Lower unit swap

    All, I have a 1988 Johnson V4 140 (Looper) and recently blew the gear case on it. I'm looking to replace my current lower unit with a bulkier one. I have found a few 20" Johnson V6 lower units that I'm interested in. I guess my question is, as long as the spline count matches on the drive...
Top