Ordering a ‘23 Powerstroke
I’m planning on ordering a ‘23 Super Duty as soon as the order banks open. I don’t need more power and I’ll probably only keep the truck for a year. How many of you are going to be willing to pay an e...
Forum Discussion
Grit dog wrote:FishOnOne wrote:Huntindog wrote:blt2ski wrote:Another benefit to a taller geared rearend is that it is stronger. Having a tranny with more gears makes it possible for the rearend to be stronger.Grit dog wrote:Cummins12V98 wrote:
I think you just explained why the CUMMINS does NOT need more than a 6 speed.
Agreed. But could sure make great use of the extra gears…
Personally, comparing the 6 he has vs the 10 sp. He should appreciate the 4.5 1st gear vs the 3.5 he has from an easier starting standpoint. Then being as lower gears are spaced closer together, rpm range used should be less.
This should also allow a higher RA so lower RPM at 60-70 like he drives, still a lower overall low gear to start with.
Possibly even able to computer program to not use first unless really loaded, or on a grade say steeper than 10%.
I'd like these option with 1500 4.3 V6! I'm only a 300/300 gaz motor with 3.42 gears! This this pulls better in first than the BB 3sp pos TH400/4l80e transmission with 4.10's!
Marty
I was actually told by a longtime GM employee, that the reason the Dmax was not available with 4.10s was that it destroyed the pinion gear everytime they tried it.
An astute observer will note that GM went to a taller 3.42 in place of the 3.73 AND increased the size of the R&P when the 10 speed became available. These changes allowed them to do away with limiting power in lower gears.
Probably because GM didn't want to design a larger rear end assembly and do it right to support a larger gear.
I do wish I could lock out first gear on my truck when I don't tow and probably the same could be said with the 10 speeds.
Nope, not it. You know this. GM doesn’t design their own solid axles. They come off the same shelf at AAM that other truck brands do. And there is a larger axle sitting on the next shelf over and it’s in use already. Has been for a while just not in GMs.
The axle that's used on the gas powered HD's is a GM designed axle that's been in use since the 70's and used on C/K30 series trucks. But on the diesel trucks your correct. I was trying the keep the discussion simple and to the point.
