Syncro 4&4 Discussion and Q&A last answered over 2 years ago.
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Only need to remove prop shaft if lifting front or rear wheels off the ground.. if all 4 wheels on the ground no problems...
If "spec lift" etc he WILL break something if the propshaft (gearbox to front diff) no matter how short a distance.. (a few feet would be ok, but not even 100 yards...)