12 Valve 2nd Gen Dodge Cummins 94-98 Discussion of 12 Valve 5.9 Liter Dodge Cummins Diesels with P7100 Injection Pumps

Input shaft nv4500

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  #1  
Old 03-10-2011, 08:51 PM
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Default Input shaft nv4500

Who's actually broke one? Iv been loOking at going to 1.3/8 but iv got an extra 1 1/4 . How much does it take to break one?
 
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Old 03-10-2011, 10:08 PM
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not a whole lot. i just replaced the one in my buddies 98 with no plate, 370's n an hx40. if ur goin with an upgraded clutch, might as well change it while ur in there. it only takes like 15 min.
 
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Old 03-10-2011, 11:02 PM
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Yeah how'd that go Logan? Disk in backwards?
 
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Old 03-11-2011, 12:05 PM
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i broke mine after spending a whole day muddin got stuck in a marsh & had to leave it over night,shaft (and evertyhing else in tranny)broke 2 days later
 
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Old 03-11-2011, 09:43 PM
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Originally Posted by 12valvetater
Yeah how'd that go Logan? Disk in backwards?
who the hell would do somethin that dumb???
 
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Old 03-15-2011, 08:58 AM
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Yea, a friend of mine snapped his 98 with 370's, bigger turbo, 4 gsk and turned up pump. He certainly did beat on it though, Im surprised it lasted as long as it did even when tugging the sled.
 
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Old 03-15-2011, 10:11 AM
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Just got done replacing one on a friends truck hes not running more than 450HP. So....when my clutch went out I had peter send an 1 3/8" shaft to replace the stock one I think it will be money well spent.
 
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Old 03-15-2011, 11:29 PM
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Broke 2 in my truck and currently upgrading. Broke with what I have in my sig. It did have an estimated 450+hp for about 9 months before it broke the first time with a few other mods but de-tuned it to what it is now and made it bout a month and broke while lugging in 4th gear up a tiny hill no load. Then replaced shaft only and it made it 4 weeks and broke again exiting a round-about in 3rd or 4th gear. Starting to think it could have been a bearing going bad??? but either way its having the complete SB 1 3/8 kit in it in under 2 weeks and I think I might tune it up a little more once again.
 
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Old 03-15-2011, 11:43 PM
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I dOnt think a bearing would make it do that but possibly excess play that lets it hammer itself so to speak maybe. I think a bearing you'd know for sure Thanks for the input guys I'm working on buying one. Anyone know where to just buy the retainer for 1 3/8 found a guy that has the input but no retainer. Could I sent to a machine shop an have them fab a different tube on the 1.25 retainer maybe? I can't remember if it's aluminum or not.
 
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Old 03-16-2011, 09:31 AM
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South bend has the kits im sure peter could send you just the retainer if not Blumenthals should be able to get you one.

---AutoMerged DoublePost---

SBC number is 800 988 4345
 

Last edited by Tbarbee1; 03-16-2011 at 09:31 AM. Reason: Automerged Doublepost
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