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How do people feel about the new AEV bumpers?

Rockcrawlerdude said:
3.23 x 3.73 = 12.0:1

5 x 4.10 = 20.5:1
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Did they change the gear ratio for 20+ trucks? 19 trucks had a 4.71 (4.71 x 4.10 = 19.3:1) which is still quite more torque focused than the 68rfe, I grant you.

That said, the torque on the 6.4 starts to reach peak torque around 2600 RPM, (just over 300ft lbs). The cummins hits 480ft lbs around 1000 RPM and peaks around 1600.

torque vs ratio at max tq (first gear)
850ft lbs x 12 = 6960
429ft lbs x 19.3 = 8280

torque vs ratio at low rpm (measured from where I can find dynos starting to draw from)
400ft lbs (at 600 rpm) x 12 = 4800
150ft lbs (at 2k rpm) x 19.3 = 2895

I understand these numbers don't actually mean much by themselves, but my point here is that down low the cummins has a much easier time moving those tires than the 6.4 does.

Before anyone says anything, I'm not gonna sit here and pretend I've got a lick of mechanical eng background, and I've spent no time looking up the formulas for the proper way to measure this (perhaps this is even close to correct?) I'm just trying to make a point based off the RPM differences I'm seeing and my general experience in high revving, short stroke engines vs low revving, long stroke engines.

EDIT: Adjusted max tq number for 19 trucks, assuming the data I had was previous years.
 
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First gear is 4.71. Still 4.71*4.10=19.31

Cummins would be good yes. Hemi 6.4 still a solid performer, especially paired with the ZF Transmission
 

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Rockcrawlerdude said:
Where did you get 4.71:1?
I have been using this table, I could be wrong.
View attachment 22191
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Not sure where you pulled that table from, so can't comment. I pulled the first gear ratio from the RAM spec (same one @el_barto screen capped above, link, warning it's a PDF download from RAM)

Rockcrawlerdude said:
edit that 350 number to the real hemi torque spec of 429 lb/ft.
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Edited, I didn't realize the tq number had gone up, nor that substantially. Perhaps the newer trucks have power a little lower on the RPM curve as well, I don't have that data.
 
The 6.4 has always been rated at 429ftlbs since it was released in 2014
 
UglyViking said:
Not sure where you pulled that table from, so can't comment. I pulled the first gear ratio from the RAM spec (same one @el_barto screen capped above, link, warning it's a PDF download from RAM)


Edited, I didn't realize the tq number had gone up, nor that substantially. Perhaps the newer trucks have power a little lower on the RPM curve as well, I don't have that data.
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Looks like you’re correct about the 4.71:1 first gear.
 
el_barto said:
The 6.4 has always been rated at 429ftlbs since it was released in 2014
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I saw a dyno sheet listed for the 6.4, I suppose I didn't take driveline losses into account so the numbers I was listing were to the wheels, vs at the crank. I know the cummins is listed 850 but my understanding is that the actual to the wheels numbers are almost that exactly, which leads to believe that the cummins is very conservatively rated.
 
Wow, I just know that when I start my Hemi with the racing key fob it sounds pretty much.....like a Cummins!

....I also have stock junk tires that I did rotate today....in the middle of a dead end street!

Sent from my SM-G996U using Tapatalk
 
I'm with @ramblinChet on this one for this go-around. This is the first truck I had someone else do the install. Several reasons with the biggest being my time. It was also a newly developed kit for the 2500 (Dominator) that required shock relocation and welding. I have the welder but my skills are not there and I know it. My neighbors also needed a break from my wrenching in the driveway LOL Finally, I have done enough Ram and Jeep suspensions so I know I can fix it on the trail if needed.

If I get one of those sweet AEV bumpers I am gonna have some friends over to help install the beast.
 
ramblinChet said:
I'm not sure how that fact is relevant to this conversation. It's been nearly two months and my AEV Prospector is still at AEV since I am so busy. If I would have ordered the components my garage would be filled with them and they would not be installed, lol.
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I believe it is relevant
 
I ordered my AEV front along with their intercooler guard. I’m going to have a M12000 in the bumper. My lowly tradesman does not have fog lights. I see by the looks of it, the factory bezel fits in there? Does the bumper come with the bezel or no? I forgot to ask.. i have time to figure it out, the bumper is on backorder for a bit anyways.
 
flan said:
I ordered my AEV front along with their intercooler guard. I’m going to have a M12000 in the bumper. My lowly tradesman does not have fog lights. I see by the looks of it, the factory bezel fits in there? Does the bumper come with the bezel or no? I forgot to ask.. i have time to figure it out, the bumper is on backorder for a bit anyways.
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It comes with an adapter to run whatever your truck has.

So, If you have blanks, they’ll fit. Bezels also fit. Bezels and blanks are the same size and mounting hardware / pattern.

I had blanks but I used that opportunity to add fogs and factory bezels & brackets

Pm me if you need part numbers
 
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Rockcrawlerdude said:
It comes with an adapter to run whatever your truck has.

So, If you have blanks, they’ll fit. Bezels also fit. Bezels and blanks are the same size and mounting hardware / pattern.

I had blanks but I used that opportunity to add fogs and factory bezels & brackets

Pm me if you need part numbers
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Ok I just have the blanks, been digging through the tradesman foglight thread and pulled the parts numbers for the needed bezel, bracket and lamps. Thanks for the offer.
 
Rockcrawlerdude said:
Functional is most important but the truck has to look good. It’s not hard to accomplish both. Neither is optional to me.

In fact, the ugliest trucks are the ones that have been modified to be least functional. Squatted, etc.
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This is an older thread but I have a functional question for you guys who have the AEV front bumper. Where I live here in Mississippi, the whitetail deer has become the roadkill of choice. The last thing I want to do is tear up the front end of my new 2022 Laramie by hitting one at 60mph. Its not if, but when. Do you think the AEV bumper will hold up to an impact like that or should I be looking at a Ranch Hand style bumper? I really like the looks of the AEV and I want to add a winch. @ramblinChet, @Desertfox73
 
Madison18 said:
This is an older thread but I have a functional question for you guys who have the AEV front bumper. Where I live here in Mississippi, the whitetail deer has become the roadkill of choice. The last thing I want to do is tear up the front end of my new 2022 Laramie by hitting one at 60mph. Its not if, but when. Do you think the AEV bumper will hold up to an impact like that or should I be looking at a Ranch Hand style bumper? I really like the looks of the AEV and I want to add a winch. @ramblinChet, @Desertfox73
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The bumper Itself I’m sure would be totally fine. It’s very well constructed and sturdy. Especially the central area with the winch tray, between the tow hooks. A corner hit at highway speed would probably deform a bit. I would not expect a deer strike to put you out of business but I would not expect zero damage.

The upper tube wouldn’t hold up to a deer strike, as it’s mostly aesthetic and only bolts on with two large torx bolts.

Ranch hand would give more grille protection and be stronger overall in my experienced guess
 
Rockcrawlerdude said:
The bumper Itself I’m sure would be totally fine. It’s very well constructed and sturdy. Especially the central area with the winch tray, between the tow hooks. A corner hit at highway speed would probably deform a bit. I would not expect a deer strike to put you out of business but I would not expect zero damage.

The upper tube wouldn’t hold up to a deer strike, as it’s mostly aesthetic and only bolts on with two large torx bolts.

Ranch hand would give more grille protection and be stronger overall in my experienced guess
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I agree the Ranch Hand likely would give better protection but it just plain looks awful on these trucks. That is what is making this such a difficult decision for me.
 
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