ARB Locker Advice: RD116 or RD117

W

wkelley70

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Aug 28, 2018
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Eagle, ID
I plan on purchasing an ARB locker for my 2006 Jeep Unlimited (42RLE\33" tires) rear Dana 44. I will also be purchasing new gears (4.88 or 5.13).

Should I purchase the ARB RD116 (3.92 and up) and standard-cut gears or should I purchase the ARB RD117 (3.73 and down) and thick-cut gears.

Is there anything that would push my decision one way or the other?
 
Not really unless you already have standard or thick cut gears that you got a good deal on or something.

FWIW, this is mine after 5.13, 42RLE and 33" tires, it was running 2,750-2800 at 75mph. If you're sure you aren't going to go bigger than 33s maybe just go with 4.88.
speedo.jpg
 
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You want 513 because of the transmission. And standard cut on the rd116 makes the most sense because you are not reusing an existing thick cut gear set.
 

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