Ram 2500/3500 Info
- Thread starter D45
- Start date
SoTxAg06
Active member
driller
old soul wanderer
35's 285/75r18
SoTxAg06
Active member
driller
old soul wanderer
After 4.56 gears
Running empty it really hasn't changed. 16mpg highway is easy to do. Where it helped is when i'm hauling camper or pulling the 5th wheel. Instead of downshifting on every single elevation change it just stays in gear and pulls. Now i'm running 5th gear at 65mph with the 5th wheel and getting 10. When I hit the hills I will manually drop gears to stay at speed. This truck pulls harder than my 2000 cummins did. Not trying to start the gas vs. diesel war but at 4000 rpm this truck will pull the skin off an ape. The hardest thing to get used to was to let the engine rev. my cummins would pull at 2600 rpm and pull hard. this engine wants to be at 3500 - 4300 and it will pull hard. With just the camper on the truck we run 65 in 6th gear and i can pull 11 mpg most of the time. If i get a tail wind and and some luck 12. but dont count on it.
Running empty it really hasn't changed. 16mpg highway is easy to do. Where it helped is when i'm hauling camper or pulling the 5th wheel. Instead of downshifting on every single elevation change it just stays in gear and pulls. Now i'm running 5th gear at 65mph with the 5th wheel and getting 10. When I hit the hills I will manually drop gears to stay at speed. This truck pulls harder than my 2000 cummins did. Not trying to start the gas vs. diesel war but at 4000 rpm this truck will pull the skin off an ape. The hardest thing to get used to was to let the engine rev. my cummins would pull at 2600 rpm and pull hard. this engine wants to be at 3500 - 4300 and it will pull hard. With just the camper on the truck we run 65 in 6th gear and i can pull 11 mpg most of the time. If i get a tail wind and and some luck 12. but dont count on it.
Last edited:
Regcabguy
Oil eater.
I've got a 2007 with the Northstar TC800 which is probably 300# less than yours.
With my early G-56 and 3.73's it yields the equivalent of an auto w/4.10's. At 65mph I'm @2000rpm.
Those are the right gears for your load and truck. Looks nice.
TrailWhalePowerwagon
Member
Thats what this 6.4 HD hemi was built for.
People are so scared to wring out a gas engine for long periods of time.
Gas will never be as efficient or as effective as diesels for towing, but the odds are against diesels right now in USA. If i could afford the risk, and it would be the only way i would buy one, i would buy a diesel to go full delete, full power. Whats the point with Todays regulations?
when i get the 37s in just a couple weeks, ill do a report on the factory 4.10 pairing.
I believe ill be just fine as soon as these diablo PCMs become available.
People are so scared to wring out a gas engine for long periods of time.
Gas will never be as efficient or as effective as diesels for towing, but the odds are against diesels right now in USA. If i could afford the risk, and it would be the only way i would buy one, i would buy a diesel to go full delete, full power. Whats the point with Todays regulations?
when i get the 37s in just a couple weeks, ill do a report on the factory 4.10 pairing.
I believe ill be just fine as soon as these diablo PCMs become available.
04Ram2500Hemi
Observer
I had a 2004 HD Hemi with 3.73 gears and 35” tires and the truck begged for 4.56’s. The 5spd auto in that truck did a lot of gear hunting. Had I not traded the truck in for my Power Wagon, it would have been regeared to 4.56’s with lockers.
SoTxAg06
Active member
So my truck is still sitting at the dealership waiting to now have the rear differential totally rebuilt. Still don’t have the full diagnosis of what went wrong and broke. It was scheduled to be done in a day once I dropped it off, but now it looks like it will be next week at some point before I get it back.
Hindsight is 20/20, but with the transmission and now rear differential issues, I would strongly consider looking at other options over a Ram at this point. Mainly the Ford F-250 with the 6.2 liter.
Sent from my iPhone using Tapatalk
Hindsight is 20/20, but with the transmission and now rear differential issues, I would strongly consider looking at other options over a Ram at this point. Mainly the Ford F-250 with the 6.2 liter.
Sent from my iPhone using Tapatalk
Explorerinil
Observer
I though the 3500 SRW ford had a Dana rear axle of some sort now.
Found this:
Up front, its basically unchanged with the use of a 35 spline Super Dana 60.
Out back, however, there are several variations depending on the capacity of the truck. For those with an F-250, there are two axles that could be residing under your bed. If your truck is equipped with the Heavy Duty Tow Package, you've got a Dana M275 featuring a 10.8" ring gear. For those F-250's without the HD Tow Package, you'll have the tried and true Sterling 10.5 that has been used for years, still featuring a 10.5" ring gear.
Moving from there, the F-350 Single Rear Wheel (SRW) models are equipped with the same Dana M275 as the properly equipped 250's.
Next, Dual Rear Wheel (DRW) F-350 and F-450's are bumped to a Dana M300 with a massive 11.8" ring gear. The 10.5" has 35 spline axles, where the M275 has 36 splines, and the M300 boasts 37 splines.
From the factory, these housings were typically stuffed with the popular 3.31 ratio, but also had options for 3.55, 3.73, or 4.30 ratios.
Up front, its basically unchanged with the use of a 35 spline Super Dana 60.
Out back, however, there are several variations depending on the capacity of the truck. For those with an F-250, there are two axles that could be residing under your bed. If your truck is equipped with the Heavy Duty Tow Package, you've got a Dana M275 featuring a 10.8" ring gear. For those F-250's without the HD Tow Package, you'll have the tried and true Sterling 10.5 that has been used for years, still featuring a 10.5" ring gear.
Moving from there, the F-350 Single Rear Wheel (SRW) models are equipped with the same Dana M275 as the properly equipped 250's.
Next, Dual Rear Wheel (DRW) F-350 and F-450's are bumped to a Dana M300 with a massive 11.8" ring gear. The 10.5" has 35 spline axles, where the M275 has 36 splines, and the M300 boasts 37 splines.
From the factory, these housings were typically stuffed with the popular 3.31 ratio, but also had options for 3.55, 3.73, or 4.30 ratios.