Numbers Don't Lie 3.73 vs. 4.30 Explained
#76
Once you get a chance to do some towing, report back how your new rig is working out. I think you are going to be pleasantly surprised. My 2020(sold) with the 7.3L/3.55 handled a 7,500# travel trailer at 9,000ft elevation easily and pulled my 10,000# skid steer effortlessly. Also cruising unloaded at highway speeds at 1500rpm is a pleasure. I hope it does everything you want it to. If not, hopefully you have not cancelled your order and can sell your '21 once your 22 is built.
#77
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#78
I have read through this entire thread. All the OP is saying is that if a driver wants the mechanical advantage of 4.30s in a truck that has a 3.73 rear end, the driver only has to drop one gear in a 10 spd tranny. There is no magic to it. The first gear advantage goes to the 4.30s and this is no small win especially stop and go uphill or heavy or both. I don't think the OP is saying the 3.73s are hands down the best but they do offer an very good alternative when coupled with the 10 spd.
Now to an argument for the 4.30s: What if I want to run 37s? Then, the 4.30 ratio will work better for me and that tire choice is saying "I don't care about fuel mileage anyway". What it boils down to is selecting the proper ratio for what the truck is ACTUALLY GETTING USED FOR AT LEAST 70% OF THE TIME. If towing at max ratings 80% of the time, especially in higher elevations, in mountains, obviously there is a need for 4.30s then. But then the argument could (should?) be made for the diesel. IF the truck tows under 10k < 30% of the time, but occasionally pulls max capacity once in a blue moon, then pretty obviously the 3.73 is going to work better, if not running huge tires, which seems to be a badge of honor for truck owners here in TX. Anyway, my personal experience on a 2019 F250 / 6.2 / 6 speed / 4.30s was that I never got over 12 mpg, I was not towing my fifth wheel very often at all unless I moved to another job, and the 3.73s (I think) would have worked better for all the highway miles I was doing with the truck.
SO, decide on honestly how much heavy tow work gets done, how big a tire you're gonna run, how bad ****ty gas mileage is going to be, and make a choice. OP is just presenting a great choice to appeal to the user who may not be towing super heavy all the time, but when needed can still git 'er done. All good.
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#79
Anybody that thinks they NEED the 4.30 gears to get a load moving obviously hasn't driven a 7.3 10 speed combination. I was convinced I needed/wanted the 4.30's. I got tired of waiting on Ford to build my truck and bought one with 3.73 gears. First is borderline too low with 3.73's. I am really glad I went with the taller gearing. I am seeing 16-17 mpg daily driving and it will no doubt still pull a house off its foundation if I asked it to.
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#80
#81
Anybody that thinks they NEED the 4.30 gears to get a load moving obviously hasn't driven a 7.3 10 speed combination. I was convinced I needed/wanted the 4.30's. I got tired of waiting on Ford to build my truck and bought one with 3.73 gears. First is borderline too low with 3.73's. I am really glad I went with the taller gearing. I am seeing 16-17 mpg daily driving and it will no doubt still pull a house off its foundation if I asked it to.
Same camp here. My ordered 2022 was 7.3 with 4.30's. Even as of JULY 28th it wasn't scheduled and ford wasn't scheduling even in early august so I found one and jumped on it. it was my exact same truck but with 3.55's instead of 4.30's. I honestly dont feel now they are a big priority to tow what I tow.
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#82
Same camp here. My ordered 2022 was 7.3 with 4.30's. Even as of JULY 28th it wasn't scheduled and ford wasn't scheduling even in early august so I found one and jumped on it. it was my exact same truck but with 3.55's instead of 4.30's. I honestly dont feel now they are a big priority to tow what I tow.
Denny
#83
Big priority to tow what I tow. That sums it up because you have to match your truck to your needs, if you pull heavy get the 4.30s if not go with whatever suits your needs. If it wasn't for our big heavy trailer we live in 6 to 7 months a year we wouldn't even have a SD because your F150 would be just fine. Our F350 DRW 6.2 with 4.30s has only had 32 miles put on it since the 20th of April because we didn't need it but on the 1st of October it will become our main transportation again because that's what we need and that's why it was ordered with towing in mind and 4.30s. I've changed the gears in a few of my trucks over the years and it's never been to a higher gear . The last big mistake I made was with a 1995 F350 CC LB 2x4 XL 351W with 3.54 gears work truck that only had 5K miles on it (it was some kind of a Ford lease truck) and it was great with a lot of get up and go until I put my utility box on it removed the back seat and put racks in it for all my crap and loaded it down so it weighed just under 10K and it turned into a dog. We don't even want to talk about what it was like pulling a trailer with more of my crap . In the end I pulled the guts out of it and at 117K it needed a new motor and a easier life so it went down the road for the same truck but a V10 and 4.30 gears.
Denny
Denny
It is important to align your needs with your choice still but MUCH less so than previously. The video of the guy hauling 24k lbs up a mountain with 3.55 gears shows how capable the trucks are even if you make the "wrong" choice. The reports of 16 mpg highway with a 7.3L gas V8 with 4.30 gears demonstrates that there is no penalty either way anymore as far as I can see.
The only difference in my case is that with 3.73's I can go faster backwards when plowing snow, for better or worse since damage to the back of my truck has been an issue in the past...
#84
#85
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#86
One would think so other than the M275 has had issues historically
#88
#89
One would think so other than the M275 has had issues historically
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