Ram 1500 owners…Hemi & 3.92s?
What better place than RVnet to get some good unbiased opinions…:B I need to purchase a work truck soon. Company truck going away, vehicle allowance starting (with a gas card). It’s gonna be a h...
Forum Discussion
RoyJ wrote:
I have a 2014 with 3.21. You'll find the final ratio of a 3.21 vs 3.92 truck is exactly 1 gear apart.
i.e. A 3.21 truck in 4th is nearly the same as 3.92 truck in 5th, etc.
Empty, they're traction limited off the line. The 3.21 is faster as you're shifting less. Both will spin 1st gear to redline with a good launch.
The 3.21 revs low enough in 8th that MSD will never kick in, the 3.92 revs higher (equal to 7th on the 3.21), but MSD will kick in more often. If you get 33+ tires, then get the 3.92. Otherwise I feel 3.21 is perfect.
Thank you, makes sense. Maybe why MSD rarely kicks in on our Charger. It hits 8th so soon in normal or Eco mode that I have to kick it down a gear (can't in Eco, paddles and manual mode are disabled) so it's not borderline lugging at that 45-55mph range.
