Quick Time bellhousing

Who is using this bellhousing? How does the depth of the Quick Time compare to a stock NV4500 bellhousing? I’m trying to figure out if I need a spacer to run a 10” 4-disc clutch. Thought there was a current post on this site about this question, but I cannot find it. Thanks.

its same depth as oem

Thank you. That will get me a starting point.

The way i read it the 13" dual disc clutch will dot fit. Is this correct?