Measure it!
FWIW..........
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For reference the MP 4120758 is 3-5/16" where as the Hayden 2947 is 2-3/4" I believe.
AINT WE GOT FUN?those measurements are for the front of the pulley to the front of the clutch itself, not the abc measurements . And, moving the radiator 'back" would be putting it closer to the engine , where I went to school. Moving it forward would be the way I would go, "if" I wanted to cut up my orig. form S cradle .
I guess proof is in the pudding. I'll have the new clutch this afternoon. I'll put it in tomorrow and take some measurements.
..........More importantly though, what setup did the factory run on these back then?
4 bolts, same as a Mopar. But, little room for a box wrench. M-B owners grind the end of a box wrench to barely fit over the head, since an open-ended wrench risks rounding off the head. In my M-B, I bought bolts at Ace w/ larger heads so I can use an open-ended wrench. Of course, a Mopar will be using different SAE bolts, so get ones w/ the largest heads possible (if a choice). Insure the M-B fan will clear everything on the engine. I tried the other way, test-fitting a Mopar fan-clutch to my M-B diesel. While it bolted up fine, the Mopar fan blades would hit the T-stat tube. I recall verifying w/ a vernier that the pilot hole is the same diameter. That must be fairly universal, except some fan clutches come w/ a reducer bushing which you must insert to use on our Mopars. I expect the same pump is used on GM or Ford which has larger pilot shaft on the w.p. BTW, the M-B fan in the photo appears to have aluminum blades. Better to pick a later one w/ nylon blades, as most M-B guys do. Also, some of the thermal clutches lose their silicone fill, especially if not stored vertical in storerooms.So how would that bolt up?
Ok, the temps have cooled enough (102) for me to work out in the shop. Installed the clutch fan. As you can see from the pictiures theres room between the clutch and the radiator with the hayden 2947. Took a measurement and have at least an 1 1/4 clearance from the front of the clutch and the rad. The fan itself is in the same location the fixed fan with spacer.
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I should note that if you look at the picture I didn't have the bolts cinched up when I took the pic.
this wasn`t enough for mine .I cannot believe this conversation is still on going .. do this and don't look back ... install pusher and the flex fan i told you ????
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Holy f’n crap! How is that you have sooo much more room than everyone else? Is your radiator really thin? Is your engine moved back some?
this wasn`t enough for mine .
How about stating in these continuing conversations, 'THAT WE START OFF W/ PUMP BOLT TO RADIATOR CLEARANCE ," RIGHT OFF THE BAT.??
As you can see the GRIFFIN radiator looks exactly like factory tank setup minus #'s on tank .. you can paint it black ... My Dart also is Number matching car .. BUT who cares , i kept everything and going for HP an TQ now ..
You have a part number for that rad?
ThanksCall griffin ............700- 800 dollars i do recall