3.21 vs 3.92: The Last Word

[AngelPhoenix]

It's cool, guys. I got a 3.92
View attachment 129865

He's found the magic

 

[TNRamGuy]

It's cool, guys. I got a 3.92
View attachment 129865

What, no boat? Amateur

 

[StuartV]

Man! So much thinking on display from back when there were only 3 or 4 gears in truck automatic trannies.

Oh, and this isn't entirely true either. The "advantage" 3.21s have at highway speeds because of lower RPM means the 3.92s also have better engine braking at those same speeds (really, across the board).

False. The 3.21 would be in the next lower gear and have the same engine braking.

I made no such proclamation. I've just said that the 3.92s will tow better than the 3.21s. If less capability is fine with you, it's your truck. Drive what you want.

It will tow better until it shifts into 2nd gear. Then they'll be the same. If that's what you meant, then okay.

Who said it was a requirement to tow? It just does it better, even above 25 mph.

How do you figure? When the 3.92 is in 8th gear, the 3.21 will be in 7th and pulling just as well.


I can't understand why some of y'all can't seem to understand that an identical truck except for the different rear end will not be in the same gear as the other truck. You keep saying things that would only be true if the 3.21 truck and the 3.92 truck would be in the same gear when they are going down the road at the same speed. That is only true when they are taking off from a stop and when they are both going fast enough to both be in 8th gear.

And those are the only times where the rear end makes any practical difference - when you're going from a stop, or when you're at elevated highway speeds. Then, you either get more takeoff power from a stop, or you get better fuel economy at 80MPH. Everything in between is basically the same (except for which gear number is displayed on your dash).

 

[bucolic]

Yeah how the **** is this such a big topic for discussion. literally the only difference is 3.92 has one more low gear and one less high gear. All the other gears are effectively the same. So the 3.92 will give you SLIGHTLY more power off the line, 3.21 will give you SLIGHTLY more better mpg at the top end. Otherwise there’s literally no difference.

Sitting in 6th with 3.21 is exactly the same as sitting in 7th with the 3.92 etc. only difference is the number on your dashboard.

I think this is pretty close. I remember old 4-speed manual pickups where you never used the 1st gear. It was the granny gear and only used if really loaded up. All the other time you just took off in second...the 3.92s have a granny gear basically.

 

[theblet]

Man! So much thinking on display from back when there were only 3 or 4 gears in truck automatic trannies.



False. The 3.21 would be in the next lower gear and have the same engine braking.



It will tow better until it shifts into 2nd gear. Then they'll be the same. If that's what you meant, then okay.



How do you figure? When the 3.92 is in 8th gear, the 3.21 will be in 7th and pulling just as well.


I can't understand why some of y'all can't seem to understand that an identical truck except for the different rear end will not be in the same gear as the other truck. You keep saying things that would only be true if the 3.21 truck and the 3.92 truck would be in the same gear when they are going down the road at the same speed. That is only true when they are taking off from a stop and when they are both going fast enough to both be in 8th gear.

And those are the only times where the rear end makes any practical difference - when you're going from a stop, or when you're at elevated highway speeds. Then, you either get more takeoff power from a stop, or you get better fuel economy at 80MPH. Everything in between is basically the same (except for which gear number is displayed on your dash).

I seriously dont even really care anymore. Just like b!itching about sh!t with yall

 

[SnowBlaZR2]

Man! So much thinking on display from back when there were only 3 or 4 gears in truck automatic trannies.



False. The 3.21 would be in the next lower gear and have the same engine braking.



It will tow better until it shifts into 2nd gear. Then they'll be the same. If that's what you meant, then okay.



How do you figure? When the 3.92 is in 8th gear, the 3.21 will be in 7th and pulling just as well.


I can't understand why some of y'all can't seem to understand that an identical truck except for the different rear end will not be in the same gear as the other truck. You keep saying things that would only be true if the 3.21 truck and the 3.92 truck would be in the same gear when they are going down the road at the same speed. That is only true when they are taking off from a stop and when they are both going fast enough to both be in 8th gear.

And those are the only times where the rear end makes any practical difference - when you're going from a stop, or when you're at elevated highway speeds. Then, you either get more takeoff power from a stop, or you get better fuel economy at 80MPH. Everything in between is basically the same (except for which gear number is displayed on your dash).

Before I respond to all this nonsense...what kind of engineer are ya?

 

[Dewey]

I seriously dont even really care anymore. Just like b!itching about sh!t with yall

I’m just here for the entertainment.

 

[SnowBlaZR2]

I’m just here for the entertainment.

Aren't we all?

 

[theblet]

Leaked! Photo of 3.92 Ram 1500 on 20 mile road trip

 

[bigdodge]

Leaked! Photo of 3.92 Ram 1500 on 20 mile road trip

View attachment 129879

with a butt crack tailgate!

 

[Dewey]

Leaked! Photo of 3.92 Ram 1500 on 20 mile road trip

View attachment 129879

Oh now your just stirring the pot.

Keep up the good work.

 

[SnowBlaZR2]

 

[theblet]

View attachment 129882

Fixed

 

[Mountain Whiskey]

Ah yes, the proud "I have no formal education on the matter, so I'll rip on someone who knows more than I do because I'm DEFINITELY right" proclamation.

The moment I wrote "Engineer" I was waiting for someone like you to come out of the woodwork and immediately use that line. It's funny to live in a world where "I'm stupider than you" is a bragging right, but then again, I have to listen to keyboard mechanics talk about power and work as if you know what those 2 terms actually mean.

Replacing rotational speed with torque won't magically make your vehicle more powerful. It's got more torque off the line, but you're sacrificing rotational speed. Go too extreme and you'll have plenty MORE torque....but you'll never get anywhere because you'll only be going 40mph by 4th gear. Gear ratios are funny in that they have a sweet spot, but they never give you any more power. As stated, 25mph is where the 3.92 stops being useful, and can even become a burden.

I'm not going to lose sleep over it, but ya'll joke about the 3.21 can't pull anything and ties up traffic like a Prius with a handicapped hang tag. You have no idea how little difference it makes, even with a trailer attached. Particularly if ya'll are towing trailers with power-robbing 4x4s. I'm willing to bet none of you are putting yourselves in situations where the 3.21 would be a problem and if you're genuinely concerned that you'd be in such a situation, you should REALLY start shopping for a 2500.

Where I live, the 3.92 offers me no advantage. We can sit here and argue "The DOT de-rated the 3.21, so the 3.92 MUST be better," but the DOT has to consider situations that most of us would not be in. I'm DEFINITELY not going to pull 12,000lbs up a mountain side with my 3.21, but I would never consider that scenario, anyway. The 3.92....yea, I guess it could pull that off, but if that was my burden, I'd be in a 2500 or 3500. I wouldn't be putting that much faith (and my life) into a 1500, just because I got the 3.92.

That meaningless word salad is a riot. I have a group of engineers at work with a few EITs with them. I get to be the director though.

Yea, my uneducated simple self spends my day correcting thier screw up, trying to not have them overcomplicate things, do the work accurately and produce reports that customers can understand and use. I make templates for them to follow but no, let's reinvent it every time so we constantly get different results. Clients love that.

Yea, engineers are impressive. They impress the heck out of themselves daily. A shameful waste of thier daddy's money on the framed paper he bought them. I am glad to see you fit in.

 

[Dewey]

The 3.92

View attachment 129882

The 3.92 Hogan’s wife left him for her son’s teenage buddy. Hulk was fast out of the gate but had no stamina and shortly after ran out of gas. All show and no go with those 3.92’s.

 

[SnowBlaZR2]

That meaningless word salad is a riot. I have a group of engineers at work with a few EITs with them. I get to be the director though.

Yea, my uneducated simple self spends my day correcting thier screw up, trying to not have them overcomplicate things, do the work accurately and produce reports that customers can understand and use. I make templates for them to follow but no, let's reinvent it every time so we constantly get different results. Clients love that.

Yea, engineers are impressive. They impress the heck out of themselves daily. A shameful waste of thier daddy's money on the framed paper he bought them. I am glad to see you fit in.

 

[SnowBlaZR2]

The 3.92

The 3.92 Hogan’s wife left him for her son’s teenage buddy. Hulk was fast out of the gate but had no stamina and shortly after ran out of gas. All show and no go with those 3.92’s.

Got rid of a cheater and her terrible teenaged son, and didn't pay anything in the divorce.

Where's the downside here?

 

[Ramroo]

That meaningless word salad is a riot. I have a group of engineers at work with a few EITs with them. I get to be the director though.

Yea, my uneducated simple self spends my day correcting thier screw up, trying to not have them overcomplicate things, do the work accurately and produce reports that customers can understand and use. I make templates for them to follow but no, let's reinvent it every time so we constantly get different results. Clients love that.

Yea, engineers are impressive. They impress the heck out of themselves daily. A shameful waste of thier daddy's money on the framed paper he bought them. I am glad to see you fit in.

Yea yea yea, how do we get a jug of that product?

 

[ferraiolo1]

Man! So much thinking on display from back when there were only 3 or 4 gears in truck automatic trannies.



False. The 3.21 would be in the next lower gear and have the same engine braking.



It will tow better until it shifts into 2nd gear. Then they'll be the same. If that's what you meant, then okay.



How do you figure? When the 3.92 is in 8th gear, the 3.21 will be in 7th and pulling just as well.


I can't understand why some of y'all can't seem to understand that an identical truck except for the different rear end will not be in the same gear as the other truck. You keep saying things that would only be true if the 3.21 truck and the 3.92 truck would be in the same gear when they are going down the road at the same speed. That is only true when they are taking off from a stop and when they are both going fast enough to both be in 8th gear.

And those are the only times where the rear end makes any practical difference - when you're going from a stop, or when you're at elevated highway speeds. Then, you either get more takeoff power from a stop, or you get better fuel economy at 80MPH. Everything in between is basically the same (except for which gear number is displayed on your dash).

Funny all these facts have been overlooked lol.


Sent from my iPhone using Tapatalk

 

[SnowBlaZR2]

Funny all these facts have been overlooked lol.


Sent from my iPhone using Tapatalk

I'm absolutely blown away that anyone thinks "they're exactly the same except 1st and 8th" is a factual statement.

If you're an engineer and have the excuse that you only understand theory and equations and don't even remember what the real world looks like, OK, fair enough.