nv4500 to dropbox

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stormersmfwd

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Tossing around the idea of jumping to 3.0 and was wondering if anyone knew how to put a scs dropbox behind a 4wd nv4500. Id rather put the money into a sqhd rear end rather than a reverser right now. Thanks
 
stormersmfwd said:
Tossing around the idea of jumping to 3.0 and was wondering if anyone knew how to put a scs dropbox behind a 4wd nv4500. Id rather put the money into a sqhd rear end rather than a reverser right now. Thanks
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Can you convert or trade the 4wd for a 2wd?
 
9712cummins said:
Interested to an answer to this as well.

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My recommendation from experience would be to stick the money in the rearend and run a 271 Transfer until you are ready to do the full dropbox and reverser. You could adapt a drop box to an NV4500 but by the time you get all of your driveshafts, adapters, and couplers made and figured out you will likely wish you just did the full dropbox and reverser at once.
 
It's not hard to make a yoke that works for the 29 spline output of the nv4500

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cfunk said:
My recommendation from experience would be to stick the money in the rearend and run a 271 Transfer until you are ready to do the full dropbox and reverser. You could adapt a drop box to an NV4500 but by the time you get all of your driveshafts, adapters, and couplers made and figured out you will likely wish you just did the full dropbox and reverser at once.
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Thank you. Is a 271 stronger or better than a 241dhd?

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The factory torque rating on a 271 is over 40% higher than a 241.
 
cfunk said:
The factory torque rating on a 271 is over 40% higher than a 241.
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This is true, but in a sled pulling maximum effort application, is the 271 really stronger? I've heard mixed opinions from the various sled pulling shops I've called the past month or so. Some think the 241DHD is actually stronger despite the factory torque rating difference.
 
Sarafin said:
It's not hard to make a yoke that works for the 29 spline output of the nv4500

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Seems like I've heard of this before but never seen it done, any pics of this setup? Although I too don't like having to redo driveshafts once again after a reverser.
 
Big Blue24 said:
This is true, but in a sled pulling maximum effort application, is the 271 really stronger? I've heard mixed opinions from the various sled pulling shops I've called the past month or so. Some think the 241DHD is actually stronger despite the factory torque rating difference.
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The 271 is stronger, they also run a larger tail shaft and the yokes are thicker which cuts down on broken slip yokes. 271s only downfall is when they break, they usually grenade and leave minimal parts to salvage.
 
9712cummins said:
Thank you. Is a 271 stronger or better than a 241dhd?

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cfunk said:
The factory torque rating on a 271 is over 40% higher than a 241.
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Big Blue24 said:
This is true, but in a sled pulling maximum effort application, is the 271 really stronger? I've heard mixed opinions from the various sled pulling shops I've called the past month or so. Some think the 241DHD is actually stronger despite the factory torque rating difference.
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I am skeptical on the 271s actually being stronger. I have rebuilt so many 271s where the chain has stretched or broken in stock and slightly modified applications, I am not sure it is worth the work to put it into a 2.6/3.0 truck. I'm on season 4 of a 241DHD and I've done one chain and welded the rear tail housing once. Granted, this is the northeast, but still, I've done plenty of ring and pinions with the Dana 80
 
bigstacks95 said:
I am skeptical on the 271s actually being stronger. I have rebuilt so many 271s where the chain has stretched or broken in stock and slightly modified applications, I am not sure it is worth the work to put it into a 2.6/3.0 truck. I'm on season 4 of a 241DHD and I've done one chain and welded the rear tail housing once. Granted, this is the northeast, but still, I've done plenty of ring and pinions with the Dana 80
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Yea I guess it more less depends how your running the truck and what hp level, track conditions and tires etc.... all those factors. The truck I have was just under 1200hp had a 241 dhd with the lock collar from haisley that locks it in 4low cause I guess they can pop out. I also have a few friends with 1,100-1,200 hp trucks that have factory 271's and no issues. Who knows. Not to get off topic here but I have a light duty NV4500 out of a 97 gas 2500 witch has the 23 spline output . I wanna switch it to 29spline and obviously switch the input to a long billet. Any suggestions on what and where to get shafts and anything else I may need to know? Thanks

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bigstacks95 said:
I am skeptical on the 271s actually being stronger. I have rebuilt so many 271s where the chain has stretched or broken in stock and slightly modified applications, I am not sure it is worth the work to put it into a 2.6/3.0 truck. I'm on season 4 of a 241DHD and I've done one chain and welded the rear tail housing once. Granted, this is the northeast, but still, I've done plenty of ring and pinions with the Dana 80
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I have a 271f in my truck with the dodge input, been flawless and never have touched it, but has anyone heard of these popping out of low as well? I've always shifted it into low on the track but it's gonna see a little more abuse now that I'm going up to lps from 2.5


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I had a 241dhd, that on a crazy rough track jumped to neutral. I don't know if it was the undoing ahiled hitting or? Once I tore it down the teeth were rounded off. If it is a puller only, I would look at a way to lock it in.
 
zstroken said:
I had a 241dhd, that on a crazy rough track jumped to neutral. I don't know if it was the undoing ahiled hitting or? Once I tore it down the teeth were rounded off. If it is a puller only, I would look at a way to lock it in.
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Yea Pat at Haisley says he has a lock collar they sell that locks it right in 4low to prevent popping out, I don't belive it's very expensive either but I don't know exact price. I'm not sure if the 271's have the same issue he didn't say that they do and I've never heard of them doing it.

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Inbred Inline said:
I have a 271f in my truck with the dodge input, been flawless and never have touched it, but has anyone heard of these popping out of low as well? I've always shifted it into low on the track but it's gonna see a little more abuse now that I'm going up to lps from 2.5


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Does your 271F have the flanged output for the rear driveshaft? If so how do you have your driveshaft for the rear being you don't have a slip yoke transfer case? Just curious because I was looking at buying a 271F but wasn't sure how to do my rear driveshaft

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9712 Cummins, I have a 271F transfer case in my 96 Ram. The driveshaft is solid from the flange to the carrier bearing. I have a slip yoke between the carrier bearing and the rear axle. This has worked fine for the last 3 years.
 
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