09SilverRam
Senior Member
Ok, I’ve done some searches and I’ve seen 4.56 recommended a lot for 4.7 trucks, but I many of those people had larger tires. Getting ready to redo the rear gear and trying to decide between 4.10 and 4.56 for a truck with the stock 265/70r17 tire size and no plans to go larger?
I have a daily driver so don’t drive the truck a ton, and I tow a trailer once a month anywhere from 60 - 200 miles one way. Trailer currently weighs in at 5100, but has a GVWR of 7k and could reasonably weigh up to 6400 depending on what we put in it. It is a tall cargo trailer with the same wind resistance as an RV.
Right now in 3rd (4th on display in tow) gear (1:1 gear) I can run 2500 at 65, but I have to downshift to 2P (1.5:1 gear) to pull gentle rolling hills.
If I go to 4.10 I’ll be at 2850 to hold 65 in 3rd, and closer to 3200 with 4.56. 4.56 could open up using the .75 overdrive on the highway with 2400rpm at 66.
Unloaded on the highway Im looking at 2200rpm at 75 with the 4.10, and 2400 with the 4.56.
I kind of wish there was a 4.30 option but I don’t see one.
I have a daily driver so don’t drive the truck a ton, and I tow a trailer once a month anywhere from 60 - 200 miles one way. Trailer currently weighs in at 5100, but has a GVWR of 7k and could reasonably weigh up to 6400 depending on what we put in it. It is a tall cargo trailer with the same wind resistance as an RV.
Right now in 3rd (4th on display in tow) gear (1:1 gear) I can run 2500 at 65, but I have to downshift to 2P (1.5:1 gear) to pull gentle rolling hills.
If I go to 4.10 I’ll be at 2850 to hold 65 in 3rd, and closer to 3200 with 4.56. 4.56 could open up using the .75 overdrive on the highway with 2400rpm at 66.
Unloaded on the highway Im looking at 2200rpm at 75 with the 4.10, and 2400 with the 4.56.
I kind of wish there was a 4.30 option but I don’t see one.