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Old 01-08-2010, 02:46 AM   #1
'63GENIII
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Question NP201 Anyone?

I was wondering if anyone here is familiar with the NP201. I found a divorced one dated 1959. It has 1.94 to 1 ratio cast into the case and looks very similar to a 205. It also has the driveline brake drum which I thought was kinda cool. I guess what I'm wondering about is the strength compared to a 205. I know it is stronger than the Rockwell that's there now but just wondering if anyone here had any experience with this case and any parts availability.
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'63 k15 long step
Vortec 7.4 - L29 Blackbear tune, Five 0 Motorsports injectors, Chris Straub Cam, NV4500, divorced 205
52" front and 63" rear spring swap
D44 / 14bff - disc axles
Milemarker 9K and 10.5K hydraulic winches

63" & B52 Spring Install http://67-72chevytrucks.com/vboard/s...ng+swap+thread


NV4500 Reverse Build Thread http://67-72chevytrucks.com/vboard/s...=reverse+build

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Old 01-08-2010, 09:37 AM   #2
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Re: NP201 Anyone?

No experience at all.My only concern is parts,same as the Rockwell though.I imagine seals may be all it would ever need.I`d think an older piece would be like most anything and be overbuilt compared to later stuff.I don`t know what improvements would have been made going to the NP205,if any.I`d love to find an exploded view of one to compare with other cases.
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Old 01-08-2010, 09:54 AM   #3
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Re: NP201 Anyone?

If I can find any info and can figure out how to post it, I certainly will. Originaly it had twin sticks like an old '57 Napco with a Spicer 24 that I had. Unfortunately this did not come with the shifting hardware so I will have to figure that out as well as how to get the drum parking brake to work. I noticed an earlier post that said that you have a PTO on yours but I wasn't sure if you had the t-case in the truck yet. Have you run it yet? How do you like it?
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'63 k15 long step
Vortec 7.4 - L29 Blackbear tune, Five 0 Motorsports injectors, Chris Straub Cam, NV4500, divorced 205
52" front and 63" rear spring swap
D44 / 14bff - disc axles
Milemarker 9K and 10.5K hydraulic winches

63" & B52 Spring Install http://67-72chevytrucks.com/vboard/s...ng+swap+thread


NV4500 Reverse Build Thread http://67-72chevytrucks.com/vboard/s...=reverse+build

L29 - 7.4 Vortec Build http://67-72chevytrucks.com/vboard/s...&highlight=L29
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Old 01-08-2010, 10:05 AM   #4
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Re: NP201 Anyone?

Just found a place for parts. I may call later if I have time. It's a Dodge/IH parts place. www.jobrated.com. Sorry but haven't figured out how to post a link yet. They seem to have parts and PTO stuff. I will try to call later. I think you are right though Special-K, this thing is so heavy that I dont think I could possibly break it. I would like to replace the seals though.
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Chris


'63 k15 long step
Vortec 7.4 - L29 Blackbear tune, Five 0 Motorsports injectors, Chris Straub Cam, NV4500, divorced 205
52" front and 63" rear spring swap
D44 / 14bff - disc axles
Milemarker 9K and 10.5K hydraulic winches

63" & B52 Spring Install http://67-72chevytrucks.com/vboard/s...ng+swap+thread


NV4500 Reverse Build Thread http://67-72chevytrucks.com/vboard/s...=reverse+build

L29 - 7.4 Vortec Build http://67-72chevytrucks.com/vboard/s...&highlight=L29
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Old 01-08-2010, 08:09 PM   #5
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Re: NP201 Anyone?

That`s cool you found a source for parts and info.I wondered if t would have been twin-stick.I think everything was back then.That`s how I remember trucks when I was a kid.I`ve never had a NP201.Where was that pto talk from?I just figured out how to post a link and I`m on the staff. Typing a web address automatically make a link (I already knew that part).
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"BUILDING A BETTER WAY TO SERVE THE USA"......67/72......"The New Breed"

GMC '67 C1500 Wideside Super Custom SWB: 327/M22/3.42 posi.........."The '67" (project)
GMC '72 K2500 Wideside Sierra Custom Camper: 350/TH350/4.10 Power-Lok..."The '72" (rolling)
Tim

"Don't call me a redneck. I'm a rough cut country gentleman"

R.I.P. ~ East Side Low Life ~ El Jay ~ 72BLUZ ~ Fasteddie69 ~ Ron586 ~ 67ChevyRedneck ~ Grumpy Old Man ~
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Old 01-08-2010, 09:05 PM   #6
'63GENIII
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Re: NP201 Anyone?

Oops. That was 1969GMC that had the np201 with the PTO...My bad. Too many good sources on this board! I think I'm gonna repace the T221 with this new case as soon as I do the LS engine swap which could be soon!
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'63 k15 long step
Vortec 7.4 - L29 Blackbear tune, Five 0 Motorsports injectors, Chris Straub Cam, NV4500, divorced 205
52" front and 63" rear spring swap
D44 / 14bff - disc axles
Milemarker 9K and 10.5K hydraulic winches

63" & B52 Spring Install http://67-72chevytrucks.com/vboard/s...ng+swap+thread


NV4500 Reverse Build Thread http://67-72chevytrucks.com/vboard/s...=reverse+build

L29 - 7.4 Vortec Build http://67-72chevytrucks.com/vboard/s...&highlight=L29
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Old 01-09-2010, 09:40 AM   #7
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Re: NP201 Anyone?

Keep us up on it.You have my interest.Adam (1969GMC) is a great source.He has alot of drivetrain knowledge crammed into that head of his..
__________________
"BUILDING A BETTER WAY TO SERVE THE USA"......67/72......"The New Breed"

GMC '67 C1500 Wideside Super Custom SWB: 327/M22/3.42 posi.........."The '67" (project)
GMC '72 K2500 Wideside Sierra Custom Camper: 350/TH350/4.10 Power-Lok..."The '72" (rolling)
Tim

"Don't call me a redneck. I'm a rough cut country gentleman"

R.I.P. ~ East Side Low Life ~ El Jay ~ 72BLUZ ~ Fasteddie69 ~ Ron586 ~ 67ChevyRedneck ~ Grumpy Old Man ~
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Old 01-09-2010, 11:42 AM   #8
'63GENIII
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Re: NP201 Anyone?

Will do. It may be a little while though as I'm still deciding on the engine /transmission combo. 6.0L LS/700r4 or 7.4-8.1 BBC and 4L80E. The divorced transfercase will allow almost any option with a 2wd transmission. Without the difficulty of finding mating adapters, it's almost harder to choose the combo. That's an entirely different thread though! Thanks and I'll try to keep up on this!
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Chris


'63 k15 long step
Vortec 7.4 - L29 Blackbear tune, Five 0 Motorsports injectors, Chris Straub Cam, NV4500, divorced 205
52" front and 63" rear spring swap
D44 / 14bff - disc axles
Milemarker 9K and 10.5K hydraulic winches

63" & B52 Spring Install http://67-72chevytrucks.com/vboard/s...ng+swap+thread


NV4500 Reverse Build Thread http://67-72chevytrucks.com/vboard/s...=reverse+build

L29 - 7.4 Vortec Build http://67-72chevytrucks.com/vboard/s...&highlight=L29
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