Issues finding what differential I have. 2014 - Tradesman - 2wd - 3.6L

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Mlaw1990

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If you make a free account on mopar.com you can see your full build with all options straight from the manufacturer.

From 2013+ the anti-spin (limited slip) axle has no preload and BLD will supply the load.
Thank you so much. It all makes sense now.

Thank you all for the help.
 
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Mlaw1990

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Have a read through this short thread
Thank you.
 

Wild one

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Thank you.
My owners manual for my old 14 calls for 75W-140,stick with it,as it only acts like a 140 when the diff gets hot,when the diffs cold it's no differant then runing 75W-90 or 75W-110.They lightened up the fluid reconmendations for milege,not longevity of the diff itself.
Everytime they go after milege numbers all the fluids get lighter,it's not done to increase the life span of the diffs or engine.Hell they call for 0W-20 in the 5.7 now,and it's not done to increase the life of the engine that's for sure.
 
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crash68

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So I should be safe with 75w90 or 75w140 with additive? Seems the 75w140 bags of val full syn are the cheapest so I will go with that.
yeap either one should be fine, cheaper is better in this case. 75W140 is the actual spec but the 75W90 will be fine especially your not towing heavy. It makes more sense for 4X4 trucks as the spec for the front differential is 75W90 and one doesn't need to buy two different weights.
 
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Mlaw1990

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GTyankee

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another site read :

VIN: 1C6RR6FG6ES285861​

+2014 RAM 1500
Trim: Tradesman Quad Cab 2WD
\Engine: 3.6L V6 DOHC 24V FFV
Style: CREW CAB PICKUP 4-DR
MSRP: $29,080 USD

so the other sites must have crashed or are being up dated
 
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Mlaw1990

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another site read :

VIN: 1C6RR6FG6ES285861​


View attachment 559657

2014 RAM 1500​



Trim: Tradesman Quad Cab 2WD

Engine: 3.6L V6 DOHC 24V FFV

Style: CREW CAB PICKUP 4-DR

MSRP: $29,080 USD
This info is correct thankfully we got this all figured out. I honestly think there is an issue with those other sites but it's hard to say.
 

GTyankee

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Automatic Transmissions;
DFL: 8-Spd Auto 845RE Trans (Make);
DMC: 3.21 Rear Axle Ratio;
DRN: 245MM REAR AXLE;
DSA: Anti-Spin Differential Rear Axle;
ERB: 3.6L V6 24V VVT Engine;

is definitely what you have
Take Care :)
 

62Blazer

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You are WAY overthinking this. The VIN decoder clearly states 3.21 gears and Anti-spin (limited slip) differential. The only thing that really matters is if it has Anti-spin or not. Otherwise there are not any different models of 3.21 rear axles....not even sure what you mean by that comment. In any case, not like different gear ratios require different lube. Either 75W-90 or 75W-140 will work fine and there is simply not that much difference. The "140" simply means that fluid will maintain being a little thicker and really high operating temps.
The reason the limited slip doesn't work very well anymore is that, assuming its the original, is worn out at 200k+ miles.
Chevy used what they called the Gov-lock on most model trucks since the 1970's that had the capability to completely lock. It was not a Torsen style diff at all.
 
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Mlaw1990

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You are WAY overthinking this. The VIN decoder clearly states 3.21 gears and Anti-spin (limited slip) differential. The only thing that really matters is if it has Anti-spin or not. Otherwise there are not any different models of 3.21 rear axles....not even sure what you mean by that comment. In any case, not like different gear ratios require different lube. Either 75W-90 or 75W-140 will work fine and there is simply not that much difference. The "140" simply means that fluid will maintain being a little thicker and really high operating temps.
The reason the limited slip doesn't work very well anymore is that, assuming its the original, is worn out at 200k+ miles.
Chevy used what they called the Gov-lock on most model trucks since the 1970's that had the capability to completely lock. It was not a Torsen style diff at all.
Yeah I for sure was overthinking it, Because I am not a "skilled" mechanic. That is why I came here to ask, I didn't want to take a chance putting the wrong fluid in. I didn't know if Brand/Mfr of the 3.21 rear axle mattered for fluid, As there were "3" oems that made them according to my research. I took the advice that was posted here and I am going to use 75w140 with additive. Thank you everyone that posted. I do have my answer :)
 
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Wild one

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Yeah I for sure was overthinking it, Because I am not a "skilled" mechanic. That is why I came here to ask, I didn't want to take a chance putting the wrong fluid in. I didn't know if Brand/Mfr of the 3.21 rear axle mattered for fluid, As there were "3" oems that made them according to my research. I took the advice that was posted here and I am going to use 75w140 with additive. Thank you everyone that posted. I do have my answer :)
Ever since 2011 all 1500's have used the 235mm ZF diff ,before that they used the AAM diffs,alot of times the AAM diff is called the corporate diff.
I think you're mixing up the heavier duty trucks like the 2500's and heavier with the 1500's,they have a couple differant diffs
 
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GTyankee

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just a bit of what i have read :

AAM made the 9.25" rear differential for the Dodge Ram 1500s

for the 2011 model Dodge Ram 1500s, Chrysler & FCA had made the decision to lighten up the Dodge Ram 1500.
So the decision was made to switch over to the ZF rear differential, that would save weight, because the ZF unit was 11 pounds lighter

Production of the 2011 model, began sometime between July First & October 2010.. ( the preferred date to switch production over to a new production year, is July 1 , they are often late on that date, mostly because of the number of Orders, made by Customers that must be fore filled )
The ZF Rear Differential is 235mm
235mm = 9.25197
 

Lloyd33

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I mean.. you could have just pulled the diff cover and looked? XD
 

Tominator223

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There’s usually a sticker on the passenger side of the rear end. It’s often upside down & facing the cab. On the axle tube. At least that’s where mine is. Has the vin. Too I believe . I bought an extra rear end, it has one also. Tells gear .
 
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