My clutch fan has gone on strike. There has been a mention here of mod to fix the fan. Can someone give me a bit of info on that?
A 11 blade from GM. has also been mentioned, can somebody let me know the part numbers for that?
Thanks P.

_________________
2006 KJ CRD
Yeti tune
EGR delete
Straight through exhaust
Airtex fuel pump
2 micron filter
2" lift

Here is info about 11 blade GM fan and fan clutch :

viewtopic.php?f=5&t=82941

_________________
05 CRD
GDE Eco Full Torque & Towing TCM Tune
Suncoast, TransGo HD2, Sonnax Line Pressure Booster, upgraded Mopar pump/springs
Weeks' Stage 1 & 2
ProVent 200
Samco Hoses
V6 Airbox
Cummins In Tank Pump
2nd Gen Fuel Filter Head,
Donaldson P551313 Secondary Filter
Fumoto valve
OME lift, JBA UCAs
Backbone Winch Mount

I strongly recommend the 11-blade fan and clutch upgrade. A/C performance in start-stop traffic under 100°F-plus ambient temperatures has been vastly improved. Can't think of any downsides in the three months or so that I've had both of them in there.

Also, take a look at the most recent posts in that thread before you order anything. It looks as though there's a possible part number change on the Hayden fan clutch, but we're still trying to figure out what's going on with that.

_________________
2005 KJ CRD Limited 4x4:
245/75R16 BFG TA KO2s
OME / Clevis 2.5" Lift
JBA Lifted A-Arms
IRO WJ Short Rear UCA/WWDiesel mount
Skid Row Skidplates
HDS Model 001 Thermostat (190°F)
Suncoast TC
Full Weeks Kit
Bosch 5V glow plugs
Hayden 2986 fan clutch / GM 11-blade fan
Samco / Sasquatch Intake Hoses
Carter in-tank pump
Provent 200
V6 Airbox

part numbers for both the clutch and the fan are in my sig below.

_________________
'06 Lbrty Sprt CRD 150K

Sasquatch
DSS Turbo
CAT-elimntr
Weeks Stg1&2 EGRfix
PV-200
BLING
vent gauges

IDParts
head
cams
rockers
Timing set
ARP studs
eTn1 GX2123 5v GPs

YETI Custom Tune
Flowmaster 8325508
Carter P76611M
GM 12611872
Hayden 2986
GM 15976889
PATC Custom Billet
2010 Ram Hemi Trans
Sonnax 44957
Transgo kit
Cooper 51770

Ditto, but it's worth checking the comments in the other thread. 2986 may no longer be the correct part number to use for the fan clutch.

_________________
2005 KJ CRD Limited 4x4:
245/75R16 BFG TA KO2s
OME / Clevis 2.5" Lift
JBA Lifted A-Arms
IRO WJ Short Rear UCA/WWDiesel mount
Skid Row Skidplates
HDS Model 001 Thermostat (190°F)
Suncoast TC
Full Weeks Kit
Bosch 5V glow plugs
Hayden 2986 fan clutch / GM 11-blade fan
Samco / Sasquatch Intake Hoses
Carter in-tank pump
Provent 200
V6 Airbox

Yes, even according to Hayden's site, there appears to be a part number change. 2986 no longer available, 2786 is new part number for the fan clutch.

_________________
05 CRD
GDE Eco Full Torque & Towing TCM Tune
Suncoast, TransGo HD2, Sonnax Line Pressure Booster, upgraded Mopar pump/springs
Weeks' Stage 1 & 2
ProVent 200
Samco Hoses
V6 Airbox
Cummins In Tank Pump
2nd Gen Fuel Filter Head,
Donaldson P551313 Secondary Filter
Fumoto valve
OME lift, JBA UCAs
Backbone Winch Mount

Hayden may not, but others do, including original GM.
https://www.ebay.com/itm/Cooling-Fan-Cl ... m570.l1313

https://www.ebay.com/itm/Heavy-Duty-Coo ... m570.l1313

_________________
'06 Lbrty Sprt CRD 150K

Sasquatch
DSS Turbo
CAT-elimntr
Weeks Stg1&2 EGRfix
PV-200
BLING
vent gauges

IDParts
head
cams
rockers
Timing set
ARP studs
eTn1 GX2123 5v GPs

YETI Custom Tune
Flowmaster 8325508
Carter P76611M
GM 12611872
Hayden 2986
GM 15976889
PATC Custom Billet
2010 Ram Hemi Trans
Sonnax 44957
Transgo kit
Cooper 51770

yes, of course, there are other companies that make fan clutches that work, including the GMB 9302050 , including many others.

https://www.rockauto.com/en/catalog/gmc ... lutch,6812

_________________
05 CRD
GDE Eco Full Torque & Towing TCM Tune
Suncoast, TransGo HD2, Sonnax Line Pressure Booster, upgraded Mopar pump/springs
Weeks' Stage 1 & 2
ProVent 200
Samco Hoses
V6 Airbox
Cummins In Tank Pump
2nd Gen Fuel Filter Head,
Donaldson P551313 Secondary Filter
Fumoto valve
OME lift, JBA UCAs
Backbone Winch Mount