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It does look well done for sure, although the 3.0si is also well ducted from factory.
Regardless, the fact I hit 260 on a hard HPDE session with a 19row cooler and fan tells me I need more cooling. This is probably better than what I had before where I was melting the Diff Poly-bushing (Diff case must have been getting to 300F, imagine the fluid inside?)
So, my next step is to rebuild the diff again, but this time I hope that I'll be starting fresh with a properly cooled diff, and we'll see how long this one lasts. I sourced two more diffs, one with 25k miles which looks almost new.
Interesting thing is this diff has no pinion preload (for those of you who build diffs), and I expected ~12". I can rotate the pinion effortlessly. Also, from factory, .004" backlash.
I'm upgrading the oil cooler core from 19row x 4.8" to a 19row x 9.5" to see if I can prevent the rear diff from ever reaching 220+.
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