Ford 7.3L 3.55 axle vs 6.2L 4.30 axle towing

[Shokyle1]

Or gm needed to put in a 10 speed with 4.10. That would help a bunch.

[Explorer03]

All,
The reason for my query is because I am looking to replace my current 2015 F250 6.7L diesel with a gasser. The diesel has given me nothing but emission control related issues since I purchased it. An emission "delete" is not an option.

Every trip I have been on towing with it; I have had to find a Ford dealer to run a TSB, FSB or flash the PCM. I have had to have all the exhaust valves replaced due to hammering during regen. Just recently driving here in town it threw a DTC which was emission related and since it is out of the 5 year emission warranty period cost me $1200.00. No current TSB, FSB or recall covered the issue (many of the FSB, and TSB requires a specific DTC to apply) After a nice discussion with Ford Corporate headquarters they agreed to reimburse me 50% of the repair cost.

When towing with the diesel based on my trailer weight and towing locations seems to be overkill. I do not foresee any upgrade in a new heavier trailer in the future. The newer 7.3L sounds great, but also seems to be overkill and not considered a "proven" reliable engine to me as of yet. I have decided to go with the 6.2L with a 4.30 axle.

I appreciate all the input and feedback everyone has provided. Your comments have allowed me to think about this a great deal.

Thanks

[mass-hole]

Originally Posted by Jay2504

In those 2 videos, the Ford has 4.30 gears and the chevy had 3.73 gears. That alone will make a big difference. I would love to see the test with a Ford and 3.73 gears. Jay

I think the 10 speed is more important than the axle ratio. The 10 speed has so many options to choose from that it basically allows you to always be at the perfect rpm.

The 4.30’s were just icing on the cake.

As usual, gm drags their feet deploying their transmissions. They did it with the 1500 too. You can still get the 6, 8 or 10 speed behind the 5.3L depending on what trim level you get.

[ttavasc]

Originally Posted by Explorer03

All,
The reason for my query is because I am looking to replace my current 2015 F250 6.7L diesel with a gasser. The diesel has given me nothing but emission control related issues since I purchased it. An emission "delete" is not an option.

Every trip I have been on towing with it; I have had to find a Ford dealer to run a TSB, FSB or flash the PCM. I have had to have all the exhaust valves replaced due to hammering during regen. Just recently driving here in town it threw a DTC which was emission related and since it is out of the 5 year emission warranty period cost me $1200.00. No current TSB, FSB or recall covered the issue (many of the FSB, and TSB requires a specific DTC to apply) After a nice discussion with Ford Corporate headquarters they agreed to reimburse me 50% of the repair cost.

When towing with the diesel based on my trailer weight and towing locations seems to be overkill. I do not foresee any upgrade in a new heavier trailer in the future. The newer 7.3L sounds great, but also seems to be overkill and not considered a "proven" reliable engine to me as of yet. I have decided to go with the 6.2L with a 4.30 axle.

I appreciate all the input and feedback everyone has provided. Your comments have allowed me to think about this a great deal.

Thanks

From my experience with the 6.2L/6-speed and 4.30 gears that combination will do just fine for the size and weights you are dealing with. Our ORV is a little bit shorter than the 28BHBE but from a weight perspective appears to be quite similar. The ORV has a 9995 GVWR and we are generally close to 8000 loaded, sometimes 8500 if we have full fresh water tank.

The 6.2 will easily handle the mountain passes here in the PNW with that weight as long as you let it wind up a bit - 4th gear between 3500-4000 rpm and ~65-68mph does the job for most the hills assuming traffic doesn't slow you down, then it gets kicked down to 3rd and 4000-4500 will get you accelerating up the hill. I use the manual shifter to set the rpms where I want them just ahead of the hill as once the 6.2 starts to bog down a little it needs to kick down a gear to recover. On the flats with little to no wind and cruise set to 62mph it will sit in 6th gear fine.

Towing mileage is generally around 8-9 depending on conditions. Just got back from ~2200 mile trip to southern Utah and averaged 8.9. Did the same trip back in March and was about 8.6 on that one.

[gvn71]

My 2021 F250 7.3 gasser tows my 284BHOK flawlessly. It does ok on gas mileage as well (around 8mpg while towing). The 10 speed works perfect.

I looked at a F250 with the 6.2 and have friends that have them. There advice to me was the 6.2 is great but prepare yourself to get familiar with every gas station as they only get 5 - 6 mpg while towing.