17-18t on a 6.5
The diff plates are glued in place on the DB-01, which is great when you have little load on them, but when you put a 6.5 in it, the loading on the rear diff is significantly higher, so the glue ends up cracking, the plates then start to slip, everything heats up, and then you got a molten mass in the rear pulley.
with a 6.5, it should be pretty rapid, but chances are, your rear diff was slipping at the start, so stunted acceleration due to it slipping.
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