I searched and searched... Im assuming you put the not and bolt through the lift hook but ill be d@mned if my 5/8's lines up, lol

I was not smart enough to realize that all you have to do is put the right size socket though one of the holes in the fan pulley and engage it on one of the bolt heads behind. (See one of the picture guides for TB service.)

DOC

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2005 KJ CRD Ltd Detroit TrueTrac Bilsteins G2 GDE "HOT" ECU GDE TCM "Tow Tune" "euro" TC SEGR Weeks Elbow New HG at 130K ARPs Clean CAT aFe Filter Magnaflow Exhaust EHM Cumminos In-Tank Lift Pump Hayden Fan Clutch Nylon Fan VH Enabled with GDE lower shutoff point Recalibrated Temp Gauge Tekonsha Prodigy Sears P-1 ZDDP

I actually ended up using the allen key trick, Thank for the response!

the old hidden bolt trick!

From memory 13mm AF is the size you need others would be able to correct that if I have it wrong.

A 13mm works or a 6mm hex key in the small hole works too.