I am not 100% certain but when I damaged my Aw50-42le out of my 1997 V70 T5 . I got a spare box out of s70 2.4 and it had a different ratios and a different stall speed from memory I only had to swap over a housing that was damaged to reuse my original box. Not sure if any of this info helps. The doc list different stall speeds too.
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