Something else i ran across this week putting my T4 back together. B4 and T4 shocks downtravel are near identical once assembled with suggested limiters.

I took my B4 v2 shock bodies and installed unshimmed T4 shock shafts in them and they were within 1mm of downtravel of suggested shimmed complete T4 v2 shocks.

For other reasons i wouldnt run it this way (uptravel limiting and shock shaft stroke centering and support), but i thought it was interesting nontheless.