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Custom Dodge Ram Performance Mods - Engine - 5.7 HEMI V8 Discuss modifying your Dodge Ram with Performance Parts and Accessories!
Factory Spec: 5.7-liter HEMI® V8 engine - 390 horsepower, 407 lb-ft of torque.


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  #1  
Old 05-05-2011, 09:34 PM
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Default Summit U/D pulley for 4th gens...I think not

wanted to have my Arringtion cam and Summit U/D crank pulley installed today but only the cam went in. Cam write will be in another thread.

The Summit 20% U/D pulley (p/n C2516) will NOT fit 4th gen Ram HEMIs. Speedfreak and now I are both sharing our experiences with a Summit rep so they can hopefully fix the issue. Attached are some pics of both pulleys next to each other and you can clearly see a 3/4" difference in the hub depth. the summit pulley "bottoms out" and is not aligned with the factory FEAD setup. The summit pulley is also an 8 rib design where the stocker is only a 6 rib.

Monday I'll fwd my pics and info to Summit and let you all know what they say. The rep was very receptive to positive and negative feedback. I don't order much from Summit but so far I've been very impressed with their customer service. They have even offered to mail me a prepaid UPS pickup tag for the return.

You 3rd Gen guys that are thinking of doing this mod have nothing to fear. It fits your motor and a couple members here have already installed it so mod away.
Attached Images
File Type: jpg pulley comparo.jpg (59.6 KB, 40 views)
File Type: jpg pulley comparo 1.jpg (58.8 KB, 34 views)
File Type: jpg pulley comparo 2.jpg (60.6 KB, 34 views)
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  #2  
Old 05-05-2011, 11:40 PM
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nice work.
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Old 05-06-2011, 12:22 AM
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I think a read somewhere that someone had machined the hub down on one of these but I never heard the result.
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Old 05-06-2011, 12:43 AM
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well that sucks to hear....wonder how the MotoBlue 03-08 from RPMoutlet is listed as working for the Gen 4's.....hhhmmmm makes ya think about things huh

I ordered the Stage 3 kit....u/d was on backorder....good thing I guess
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Old 05-06-2011, 02:15 AM
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This is about how much I like summit haha
They arent always the best price but theit customer service is great! My dad has run into problems with wrong parts and the such and they have always made things right
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Old 05-06-2011, 08:27 AM
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thanks for sharing, I didn't realize the 4th gen pulleys are way different then the 3rd gens pulley.
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Old 05-06-2011, 02:30 PM
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Thanks for being the guinnea pig on this one. Now I'm glad I decided to hold off on any more performance upgrades until the tuner comes out for the 11s or I'd be in the same boat as you two.
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Old 05-06-2011, 07:43 PM
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No problem guys. I emailed all the pics to the summit dude. We'll see what he says. I was pumped to do this mod for only $215 but no way am I buying the $390 ATI damper...guess I'll have to go w/o it.
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Old 05-06-2011, 07:50 PM
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The truck is really coming along!!!! Looking forward to the cam write up...339! Good numbers!!!
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Old 05-10-2011, 10:17 PM
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im looking forward to the cam write up also and as for the pulley i hope it all works out for you in the end bud
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