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Dana 44 Axle Swap

I have a '42 MB stretched 8" behind the front seats with an SM420, D18 w/Saturn overdrive and 3.73:1 gears. I have access to '86 axles with Detroit lockers and 4.56:1 gears. Can I swap in the '86 axles behind the D18 (passenger side offset). I'm concerned with vibration and reliability issues related to the passenger side offset to centered rear pumpkin. Any Suggestions? Cost is an issue.
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