Transfer Case Options

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Transfer Case Options

Postby RSWORDS » Sun Jul 18, 2010 4:23 pm

Are there any drop in transfer cases out there to replace the limited gear of the np205?
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Re: Transfer Case Options

Postby pulltilbroke » Sun Jul 18, 2010 8:52 pm

There is nothing really drop in that has the strength of the 205 but I know of a few people that have reworked and flipped a 271 and the seem to work pretty good, these were both strictly competition rigs though.
90 W250 reg cab, Modified knuder valve, reversed reciprocting dinglearm adjusted, High volume flux capacitor,upgraded whirlygig, A clutch and a hitch
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Re: Transfer Case Options

Postby Remps » Sun Jul 18, 2010 9:31 pm

I'd check into JB Conversions Lomax 3:1 205, it looks pretty stout. ;-)
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Re: Transfer Case Options

Postby redneckroot » Tue Jul 20, 2010 5:28 am

I believe ford dana 60s have a driverside high pinion style front ends. I'm not sure of what their spacing between the springs is, but that would open up a lot of different transfercases to you. Another problem is I'm not sure what you would do about your speedometer with a different t-case.
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Re: Transfer Case Options

Postby lectro_static » Tue Jul 20, 2010 7:51 am

Look into atlas not sure that its a drop in
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Re: Transfer Case Options

Postby bgilbert » Tue Jul 20, 2010 3:43 pm

For pulling, which I'm sure you're looking for, skip any form of a 205 and go with the 241dhd or the nv271 like Andrew mentioned. You will eventually find that even with Profab's 205 kit and even a 3 to 1 kit, the 205 just won't hold up to a high hp pulling application.
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Re: Transfer Case Options

Postby pulltilbroke » Tue Jul 20, 2010 7:32 pm

redneckroot wrote:I believe ford dana 60s have a driverside high pinion style front ends. I'm not sure of what their spacing between the springs is, but that would open up a lot of different transfercases to you. Another problem is I'm not sure what you would do about your speedometer with a different t-case.



Why have I never thought of that, and with a truck at stock hight it would keep the exhaust off the front shaft and you would have more room for bigger exhaust along that side of the truck.



Bill what do you consider a high hp pulling application?
90 W250 reg cab, Modified knuder valve, reversed reciprocting dinglearm adjusted, High volume flux capacitor,upgraded whirlygig, A clutch and a hitch
93 W350 ext cab dually, getrag and a few adjustments
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Re: Transfer Case Options

Postby redneckroot » Wed Jul 21, 2010 7:08 am

I plan on swaping out my front axle at some point when I change trannys if it will fit. Plus from what I remember of them I believe they are a stronger high pinion set up which will also help drive shaft angles. My only problem at this point with swaping t-cases is I'm not sure how to get the speedometer to work.
1990 Restored with a bit of aftermarket goodies might be for sale?
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Re: Transfer Case Options

Postby Raymo » Fri Jul 23, 2010 6:42 am

The '78-'79 Ford dana 60 is what you guys would want. It has the correct 32" spring pad width, while the others have a wide 36" width. And the gears are supposed to be stronger (20%) because they drive on the correct side of the tooth. A typical front axle drives on the coast side of the ring gear teeth, which is why any rear axle (low pinion) can be built into a front. The ford 60 is also common in a 3:55 gear that I've seen.

Just remember too that Ford 60's have smaller hub bearings, and 5 spindle bolts instead of 6. The dodge stuff will fit from the inner-c out. (steering knuckle, stub shafts, ect...)

Anyways... end rant :lol:
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Re: Transfer Case Options

Postby Cschafer » Thu Aug 26, 2010 7:07 am

I would build a 203 doubler before I bought low max gears. better drive line angle and more gear options. don't know about 29 spline 203 inputs but definently have 23's. Just for thought my jeep with a very eficent 300 gear t case lost over thirty hp on the dyno over hi range. on 275hp that's a pretty big percentage. Keep in mind that was 2wd lo I wasnt spinning the front side of the case so it would be even more in 4wd lo. I think i've heard kta say somting about running 6 somthing gears and run the hi side of the case. I think it would be more efficent and better on parts moving the torque multiplication further downstream.
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