Hi, I'm in Australia with a 1946 Chevy Coupe Ute. Front end and running gear made in Canada and the ute body made in Australia. Photo attached
I've done a lot of searching through the site and found lots of info on how to do the 4.11 to 3.55 diff conversion but very little on the actual benefits. My high school math tells me that 3.55 is about 12% higher than 4.11. Current top speed with my setup (216 engine, 3 speed transmission, 4.11 diff) is about 40 mph. It will go a bit faster but it's definitely not happy about it. So, using my high school math again, if I change to 3.55, my new top speed would be 45 mph. That hardly seems worth the extra expense and effort, so I think I may be missing the point. I'd love it if someone could give me some real world examples of what changes I could expect if I went down the 3.55 conversion path.
