doubler "?" NP241/NVG271

[Bhintz]

There is supposedly a couple of guys/groups over on pirate trying to produce such a unit in the sub-$1500 price range. That'd be pretty cool... 2.72 on top of the 1.96 of the 205 would be a good amount gear. I like things with cable shifters too.

j

i saw that it was 900 i think

 

[bigjbear]

The only one I see currently being offered uses 231 planetaries and a 23 spline output. link: http://www.pirate4x4.com/forum/showthread.php?t=330534 How about a 241/205 version vendors.

 

[CyberSniper]

The only one I see currently being offered uses 231 planetaries and a 23 spline output. link: http://www.pirate4x4.com/forum/showthread.php?t=330534 How about a 241/205 version vendors.

Yeah, I asked that guy about a 32 spline version. Then I'd just cut a IFS 241 for a range box.

I asked NWF about a 241/205 doubler a while back. You could make a 465's output shaft a lot shorter, make a new adapter between the 465/241, then only use the front half of the 241's case for the range box, then make a 241 output shaft and adapter to go to a 205. Even if you had a long input 205 it wouldn't end up any longer than a 465/208 due to getting rid of the slip yoke and making the adapter between the transmission and the 241 shorter.

 

[surpip]

that would be sweet
only thing i would worry about is your still using the 241's fragile case in the front part of the dubbler, with all the tourque it would now be subjected to i think you would have cracking/breaking issues

 

[NorthWestFab]

Since you asked we stepped up production date on some of the 241 gear - three options will present themselves.

1 - use your own NP241 front case half, semi similar to what you have seen on pirate, with our own version and ideas.
2- send us your NP241 planetaries, we will install them into a billet crawl box.
3- off the shelf crawlbox using NVG 271 planetaries (No core requied, new guts ready to install)

There is also the 203/241 kit as previously mentioned in this thread.

Here is a little project of my own...NVG271 on the left, and a planetary gearset we managed to aquire, 4:1 NVG241OR Roc Trac on the right. The ring gear is approx 9" in diameter, makes the NVG 271 look wimpy.

 

[Hossbaby50]

What are the price figures for the options listed above? Down the line I am thinking about the 241 or 271 crawl box with a 205 behind it.

Thanks
Harley

 

[CyberSniper]

that would be sweet
only thing i would worry about is your still using the 241's fragile case in the front part of the dubbler, with all the tourque it would now be subjected to i think you would have cracking/breaking issues

The case is actually pretty strong. If you're just using the range part of the 241 it's really strong. The only parts used are the planetaries, the range selector, and the fork (plus input/output shafts). Not a lot is seen in the case (as compared to a front output). I'd have no problem putting one behind a bigblock or blown smallblock and a 465 in this application. It's not really seeing all that much... front output isn't turning anything.

There are so many IFS 241s out there... it's unbelievable. The only reason they cost as much as they do is because some people figure that a SFA 241 goes for a couple hundred then why shouldn't a IFS 241 go for a couple hundred... even though there are millions out there and plenty in 32 spline format. I picked up my 32 spline one for $125... no leaks... nice and tight... and I didn't even jump on it.

Since you asked we stepped up production date on some of the 241 gear - three options will present themselves.

1 - use your own NP241 front case half, semi similar to what you have seen on pirate, with our own version and ideas.
2- send us your NP241 planetaries, we will install them into a billet crawl box.
3- off the shelf crawlbox using NVG 271 planetaries (No core requied, new guts ready to install)

All I can say is... WOOHOO. I have a spare set of 241 planetaries lying around doing nothing... the front half of the case is broken... hmm.

 

[thebigdaddyof2]

Right ON, Kyle!
We need more info and pricing...

Here is a little project of my own...NVG271 on the left, and a planetary gearset we managed to aquire, 4:1 NVG241OR Roc Trac on the right. The ring gear is approx 9" in diameter, makes the NVG 271 look wimpy.

Any chance of doing a side by side by side comparison of the 241, 271 and the Roctrac in a pic?

 

[bigjbear]

THIS IS EXACTLY WHAT I WANT! The only difference is I was thinking the other way around. Do you have an ETA or is this still just an idea? I want better than 5:1 from the case, but I also want 2:1 for the dull streches. Is it worth calling you yet? I'll work w/ you if need be, let me know, TIA.

 

[surpip]

I WILL get one of these when they come out, my ultimate drive train was a 4L85E+ dubbler, now it will be alot eaiser, the 241 will bolt right up, noww all i got to do is find the stuff
you guys rock, love your products, and your customer service is outstanding!!!!

 

[NorthWestFab]

What are the price figures for the options listed above? Down the line I am thinking about the 241 or 271 crawl box with a 205 behind it.

Thanks
Harley

Nothing is set in stone price wise yet.

The kit that retains your own front case half will be fairly economical. The kit will include all the adaptor plates with mounting feet, a billet 8620 mainshaft and hardware. I this kit will be cheaper than our 203/205 kit.

The complete billet range box price has to be played with a bit yet, but isn't too far in the future. Sending us your core NP241 gearset will cut a good $250+ off the price I expect. We would need the input, planetary assembly, sun gear and range hub. If you didn't have a core and want a bolt-in assembly, we will use brand new parts.

Any chance of doing a side by side by side comparison of the 241, 271 and the Roctrac in a pic?

The NVG241 and NVG271 are the same planetary after 1994/5. the only difference in the older model is the gear pitch. The 241/271 is a ridiculously strong planetary.

I want better than 5:1 from the case, but I also want 2:1 for the dull streches. Is it worth calling you yet? I'll work w/ you if need be, let me know, TIA.

Give me a call at the shop, 250 248 6024, it's always worth the call, or PM me your number I'll give you a shout on my dime.

 

[bigjbear]

I'll give you a ring tuesday AM. Big holliday south of the 49th parallel this w/e.

 

[NorthWestFab]

I'll give you a ring tuesday AM. Big holliday south of the 49th parallel this w/e.

Yes things are rather quiet around the shop on US holidays...today was canada day so we sneeked in a 4 day weekend...waaahoooo

:Canadaflag:

Happy 4th of July

 

[CyberSniper]

I have a couple Chevy 32 spline NP208s, a Ford NP208, an IFS Chevy 32 spline 241, and the guts (case broke) to a SFA Chevy 27 spline 241. They're all itching for a project.

Since I'm still waiting... I decided to make a flat crossmember for my 465/208 and took an interesting picture of the 32 spline 465 output. You could make a shaft/adapter an easy 5" shorter (maybe respline a 2wd one?) and your 241/205 doubler wouldn't be much longer than a standard 465/208 or 465/241... and would actually be shorter with a fixed yoke 205.

 

[TravisO]

Since you asked we stepped up production date on some of the 241 gear - three options will present themselves.

1 - use your own NP241 front case half, semi similar to what you have seen on pirate, with our own version and ideas.
2- send us your NP241 planetaries, we will install them into a billet crawl box.
3- off the shelf crawlbox using NVG 271 planetaries (No core requied, new guts ready to install)

There is also the 203/241 kit as previously mentioned in this thread.

Here is a little project of my own...NVG271 on the left, and a planetary gearset we managed to aquire, 4:1 NVG241OR Roc Trac on the right. The ring gear is approx 9" in diameter, makes the NVG 271 look wimpy.

How's the progress on this stuff coming along? I've got a passenger drop 241 with 27 spline input that needs to have a passenger drop 205 behind it. I'd re-use my existing case for the 241, as you say this will be cheaper than your 203 doublers, but I don't have the 205 yet. Which 205 do you intend to make this case compatible with, firgure 8 or round 6? 27 or 32 spline input 205?
Thanks,
Travis

 

[CyberSniper]

Yeah, I'm interested as well. I've got a driver drop Chevy 241 and a driver drop Ford 205 that I'd like to hook together. And I've got a little bit of coin to spend.

 

[bigjbear]

I'm still waiting too.

 

[NorthWestFab]

We're On It! - We've ordered the 8620 mainshafts, we're just getting everything to the point of production. I still don't like the bit that you have to weld on the side, I'm just investigating different options for that.

We got the new CNC mill on tuesday, a little time to get everything wired and setup and we'll be rockin on new parts.

-Kyle

 

[jays68yak]

 

[TravisO]

Right on, Kyle! I'm glad this is still getting some attention. I'm not a big fan of the side plate either, but it's not a deal breaker. I know your innovative ideas can come up with something. I personally was thinking of something like an L shaped plate, either welded or formed/bent, where the side portion is machined to fit 'inside' the 241 case with pretty tight tolerances. Then your customers just bolt it on with some RTV and cut off the overhang. Make sense? I know this would probably add more cost than just taking it down to a local shop and having a plate welded in for $20 but it makes the kit VERY complete and idiot proof.
Travis