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Discussion Starter · #1 ·
Hi everybody,
I own a 2017 bighorn crew cab short box with an 8 speed and auto 4x4. My questions is how can I find out if it is a 392 diff? Also I would like to find an lsd diff front and rear if possible or what is on the market and available for me.
 

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Try this. It should list all the factory options your truck came with.

 

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2014 Ram 1500 Express 5.7 8Spd
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it will list front diff ratio and then rear diff then what type of diff is in the axle:
215MM Front Axle
3.21 Rear Axle Ratio
235MM REAR AXLE
Conventional Differential Frt Axle
Conventional Differential Rear Axle
 

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2014 Ram 1500 Express 5.7 8Spd
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also i will bet money that its a 321, the steep gear for the 8 spds is a 3.55 and was only put in if you got the option
 

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2014 Ram 1500 Express 5.7 8Spd
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and as for limited slip or gear options for the front, well were hosed, nobody makes anything for the fronts that i know of and you can either go oem or Detroit true track for the rear
 
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