Super duty 10 speed gear ratios
Very similar to the 1/2 ton ratios. They are probably all excellent but my personal preference is that they would have left reverse as a higher speed. I think it was 1:-3.4 in the 6 speed Super Dut...
Forum Discussion
2001400ex wrote:blofgren wrote:
The 6 speed trans in my 2012 F150 work truck drives me nuts at times with it's constant shifting; I can just imagine what these ones must be like.......
I'm not sure how Ford will end up. But in my 2020 GMC Duramax. You really don't notice the shifts. The nice thing, since the spacing is less between gears, it seems natural. I haven't towed heavy other than around the block basically but it wasn't hunting the few minutes I was on the freeway. And you still have the option to lock out top gears.
blofgren, that was not a bad behavior in the first 6sp auto I had (2011 F150). But then again, I was totally enamored with it being the closest thing to an Allison 1000 that I'd ever driven up to that point.
But to your point, generally transmissions upshift as quickly as possible for economy vs load. Then you're in a high gear that can't support accelerating. Same deal with the 4L60 in our Tahoe, but with 33% less gears, it shifts less, understandably.
Even newer transmissions, like 400ex mentioned do seem more seamless, lol. Less of a rpm change and unless one is in sport or tow haul type modes, they generally shift VERY smoothly.
Haven't driven a new 10 speed light vehicle yet, but the 8sp GMs and Chryslers I've driven are smooth like butter when you want them to be and rip off great shifts when you want them to be aggressive.
IDK, maybe I'm just a proponent or sucker for more gears, but I'll take 8-10 speeds over 4-6 speeds all day long and twice on Sunday.
