I've been searching around the site and have found quite a bit of good info on the fan clutch upgrades and I just have a couple of specific questions:

When upgrading to the 2905 hayden clutch are most people simply re-attaching their metal fan?

I live in northern MN so I assume I could safely remove my fan for the winter to gain a little bit of mileage and then just re-install in the spring again?

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2005 CRD Sport
Samco hoses, GDE Ecotune, Fumoto drain valve
Winter mods: air box snorkel removed, front grill covered, viscous fan and clutch removed

Some reuse the stock metal fan and some use the gasser nylon fan whose part number I think is 52079654AE or 52079654AD

The main advantage of the nylon fan is it's lighter.

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Sold to LOST member my 05 Ltd, GDE Stg II turbo + TCM tune, SunCoast TC w. Transgo kit, Steiger window regulators, Samcos, Fumoto valve, 2nd gen filter head with Lub. Spec. bleeder, Hayden clutch & 11 blade fan, inverted spare, P-1 battery, BF Goodrich Long Trail TAs, Etecno1 glow plugs, timing belt at 50K miles/8 yrs

Very pleased with my Hayden/Nylon fan upgrade, the AC works much better in hot weather.

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2006 Pearl Green CRD
Magnaflow 2 1/2" Cat Back
KJ Extra Leg Room Brackets, Carter Lift Pump, V6 Airbox, ORM
Fuel cooler, Oil Separator, Progard 7
Gauges EGT Boost Trans Temp Oil Pres, Michelin LXT AT2 245 70 R16
7,000# Draw Tight hitch, PML EX Deep Trans Pan
Centrifuge, SunCoast, Transgo, RAM TCM, InMotion Stage 2
Wife's 99 TDI VW Beetle