Hmm isnt the yolk bolted in? It shouldnt move. Allthough I could be wrong ive never looked at the front of the autotrac cases. Are there 4 or 6 bolts around teh yolk, thats how I would imagine it would come off.
One of the cases I have, out of a 2002 HD with an allison, it has the slip yoke style front shaft... But it had no boot. It had a seal that was pressed into the front of the t-case housing that you just pry out and press a new one in but thats it.
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