DC3
Well-Known Member
- First Name
- Carl
- Joined
- Jul 14, 2020
- Threads
- 42
- Messages
- 319
- Reaction score
- 850
- Location
- Willmar, MN
- Website
- dilabs.cc
- Vehicle(s)
- '21 JT GDE Ecodiesel, 22 Polestar 2
- Occupation
- engineer
- Thread starter
- #1
I have been running 33s on my Gladiator (with a supercharger) and have found it to be ok, I haven't wanted for more, per se. I installed 35s recently and I was surprised at how similarly the Gladiator performed (6.7s 0-60). It's not a race car but 0-60 is a nice comparative metric.
On the highway, I found the typical 6th-7th-8th gear wandering, although probably less than a NA 3.6. I also tow sometimes and thought regearing might help the highway gear wandering and provide more around town getup.
I decided to regear with Dana 4.56 gears, photos are below. After the regear, I was surprised there wasn't more of a difference. However, after putting a couple hundred miles, I am happy I did the swap. The change is very subtle but meaningful. There is hardly any 6th gear and very infrequently 7th gear running on the highway at 70. It only downshifts on inclines or with strong winds (invisible inclines )
Overall, I am happy I did the swap. I think I am seeing better gas mileage but this is a very unscientific assessment considering our widely varying temps (-25 to 30 F) and my widely varying pedal depression. Was it worth it? Yes. Is it life-changing, No. I see this as one of those modifications you appreciate more and more every day.
I am running just over 2k RPMs at 70mph.
Pointers for other DIY'ers... Having the right tools + patience + part organization are all a must. If I had to do this on the ground I would have had someone else do it. I actually tried to find a local shop to install the gears but no one would.
On the highway, I found the typical 6th-7th-8th gear wandering, although probably less than a NA 3.6. I also tow sometimes and thought regearing might help the highway gear wandering and provide more around town getup.
I decided to regear with Dana 4.56 gears, photos are below. After the regear, I was surprised there wasn't more of a difference. However, after putting a couple hundred miles, I am happy I did the swap. The change is very subtle but meaningful. There is hardly any 6th gear and very infrequently 7th gear running on the highway at 70. It only downshifts on inclines or with strong winds (invisible inclines )
Overall, I am happy I did the swap. I think I am seeing better gas mileage but this is a very unscientific assessment considering our widely varying temps (-25 to 30 F) and my widely varying pedal depression. Was it worth it? Yes. Is it life-changing, No. I see this as one of those modifications you appreciate more and more every day.
I am running just over 2k RPMs at 70mph.
Pointers for other DIY'ers... Having the right tools + patience + part organization are all a must. If I had to do this on the ground I would have had someone else do it. I actually tried to find a local shop to install the gears but no one would.
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