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NV 4500 Input shaft upgrade

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Old 08-07-2006, 11:25 PM
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NV 4500 Input shaft upgrade

Guys,

plain and simple question. When should i start to consider and input shaft upgrade? Im about to tear into my tranny on wednesday and was wondering just how much more than my current mods can i go before my input shaft risks breaking or damage?

Will the stocker hold 500 rwhp? or once i start adding more mods would it be wise to consider an input shaft..

What do you all think?

thanks for the input!

Rick
Old 08-08-2006, 12:11 AM
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i broke mine pulling my trailer. it was light at the time but still broke it bad...made a hell of a raket just moving the truck.

i d save for a 5600 now.......and start looking for a deal.

btw i have my broken 4500 still for parts if your interested...i think it worth around 400 maybe...to bad it weight 300.....lbs.
Old 08-08-2006, 07:09 AM
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i snapped mine off at 411 rwhp, going down the road empty in 4th at 50 or so miles per hour.
Old 08-08-2006, 07:22 AM
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If you tow, I'd do it. If you drive hard, I'd do it. If you do both at once...DO IT!!

It's a lot of money, but I've only heard of a handful breaking...and most of those were plain abuse!
Chris
Old 08-08-2006, 08:19 AM
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Originally Posted by signature600
If you tow, I'd do it. If you drive hard, I'd do it. If you do both at once...DO IT!!

It's a lot of money, but I've only heard of a handful breaking...and most of those were plain abuse!
Chris
Ill ride this one out

see how far it goes, it is alot of money for a shaft, plus i dont abuse my truck alot. I do tow alot tho, so well see what gives.. hopefully not the shaft and soon.. thanks guys!

Rick
Old 08-08-2006, 08:28 AM
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i don't think you have a good enough clutch to break the input shaft. i have a con fe in mine when it broke. plus mine was a dually so more traction to try to break it with.
Old 08-08-2006, 09:00 AM
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Originally Posted by gunracer1
i don't think you have a good enough clutch to break the input shaft. i have a con fe in mine when it broke. plus mine was a dually so more traction to try to break it with.

I got my Valair goin in this week...

Which is why im tearin apart the transmission tomorrow

Rick
Old 08-08-2006, 03:29 PM
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i have 2 friends who have both snapped theirs with pretty much the same mods as you have, but they were also being stupid and doing burnouts when it happened
Old 08-08-2006, 03:40 PM
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Originally Posted by TxDiesel007
I got my Valair goin in this week...

Which is why im tearin apart the transmission tomorrow

Rick
Valair Texan for Valeo?
Old 08-08-2006, 03:50 PM
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Originally Posted by halerazor
i have 2 friends who have both snapped theirs with pretty much the same mods as you have, but they were also being stupid and doing burnouts when it happened

I dont care much for burnouts,

just a couple more dyno pulls with it I wanna see how close to 400 rwhp I am now (if not over it) and just be able to smoke a ricer here and there...

Hohn,

we texans stick together, plus i know Valair clutches kick some serious keyster....

Rick
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