231J vs 231D

GotWood

Sayer of Fact
Joined
Jan 12, 2007
Location
Maiden, NC
Have a friend that lost his t/c 2000 Durango 4.7 5spd. It's a 231D and i have a 231J. What is different?
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D has a larger chain, and it’s rumored they have 6 planetary gears but I’ve read otherwise and believe that’s only the 231C and a select few Ds.

I have a broken 231D in my YJ, and since I have free 231J that’s what I’m putting in it.
 
When I say broken, my front axle shifted backwards and the drive shaft split my case.
 
Snout length on the input also. (I have cut down ones too long with success) front output yoke configuration may differ also, though should be interchangeable.
 
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