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what axles do I have - Build sheet attached

blkhawk_jl

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I’m looking to do a re-gear on my 2029 JLU Sahara. My build sheet says I have the Dana 1M186 front axle, and the Dana M220 rear axle. Under my optional equipment it says Dana M200 rear axle. Can someone identify if these are the Dana 30,35 or 44 for the rear?

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Roostre

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I’m looking to do a re-gear on my 2029 JLU Sahara. My build sheet says I have the Dana 1M186 front axle, and the Dana M220 rear axle. Under my optional equipment it says Dana M200 rear axle. Can someone identify if these are the Dana 30,35 or 44 for the rear?

View attachment 271028

D4042F0E-A71B-404A-9F44-037D36FA6A3D.jpeg
I'm no expert, but I ran across a similar thread while searching for info on the M220 rear axles and: https://www.jlwranglerforums.com/fo...-have-build-sheet-attached.44611/#post-981041


Basically says this:
It's quite simple:
Manual Transmission = M186 front (D30) / M220 (D44) Rear
Auto Transmission = M186(D30) front / M200 (D35) Rear
Auto Transmission with Anti-Spin Differential = M186 (D30) front / M220 (D44) Rear


If you don't get the Anti-slip rear axle they "Downgrade" you to the M200 rear axle with the 8-speed auto.
 

four low

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