Np205 - The 1947 - Present Chevrolet & GMC Truck Message Board Network

rebelkid72 · 10-31-2010, 11:02 PM

Help, I'm going to do a cummins swap in my 72 chevy and I have a line up on a 97 nv4500 but i don't know if my np205 will bolt up. Hellppp thanks.
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1985-GMC · 11-01-2010, 01:11 AM

Is the nv4500 a dodge or chevy version? Dodge version will require a dodge 29 spline np205 from a 89-93 cummins+getrag. The chevy nv4500 will require a dodge bell housing and a dodge input shaft, and I think a 32 spline chevy np205 will bolt up to it.

**special-K** · 11-01-2010, 07:01 AM

You'll need the late 205 32 spline/round pattern,as mentioned,if it's a GM NV4500.Going all Dodge is the east button.

snj8198 · 11-01-2010, 02:17 PM

Quote:

Originally Posted by special-K

You'll need the late 205 32 spline/round pattern,as mentioned,if it's a GM NV4500.Going all Dodge is the east button.

-not to mention the Dodge NV is the stouter of the two since they used the HD version by using a stouter main shaft and retainer nut that eliminated the 5 gear failure issues. go with the 32 spline output shaft and you can bolt a round pattern 205 up directly to the tailshaft eliminating the need for a female coupler.

1985-GMC · 11-01-2010, 08:49 PM

Quote:

Originally Posted by snj8198

-not to mention the Dodge NV is the stouter of the two since they used the HD version by using a stouter main shaft and retainer nut that eliminated the 5 gear failure issues. go with the 32 spline output shaft and you can bolt a round pattern 205 up directly to the tailshaft eliminating the need for a female coupler.

You mean the chevy version doesn't have the 5th gear nut problem, the dodge one does.

**Dieselwrencher** · 11-01-2010, 09:41 PM

Because the chevy ones had no power ran through them.

1985-GMC · 11-01-2010, 09:48 PM

Quote:

Originally Posted by Dieselwrencher

Because the chevy ones had no power ran through them.

That might be why.

rebelkid72 · 11-01-2010, 10:11 PM

Thanks for all the feed back guys I'm just trying to figure out the cheapest way. Idk if buying the adapter to mate the 12v to my sm465 or make the guy a deal on the motor and tranny but since my t case won't work and i don't know where to get a passenger side drop t case for the tranny I'm in a pickle
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snj8198 · 11-01-2010, 10:57 PM

**Dieselwrencher** · 11-02-2010, 12:21 AM

The easiest thing IMO would be just to find a NV4500 from a 94-02 dodge, then find a NP205 from a 5 speed first gen dodge 89-93. It'll be right, and the cheapest route. The engine plates and flywheels and clutches are easy to find and they're a lot of options to go.

rebelkid72 · 11-02-2010, 12:44 AM

Well for now I think I'll buy the motor and save up for the tranny and t case. Does anyone know how far back I have to box the frame in?
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**special-K** · 11-02-2010, 06:05 AM

Oops! I meant "easy" button,not "east".

dfairchild19 · 11-03-2010, 03:31 PM

i bought a 94 donor with the cummins and 4500 but it was 2wd. i converted it to 4wd by changing out the mainshaft and the 4x4 housing. then i found a 29 spline 205 from an 89-93 cummins/getrag combo with the coupler. i think that this was the easiest route to take but most likely the most expensive, especially if you gather all of these parts separately. the motor will usually be around 1500 for a running motor, a good nv4500 can probably be found for between 1200 and 1000 and the 205 can be anywhere from 400 for decent used to 1000 for a rebuilt case. you will have at least 3000 in the drive train if you part it all together.

i paid 1800 for my donor truck, 500 for my 29 spline 205, about 500 for the 4500 mainshaft, rebuild kit, and 4x4 housing and coupler; and all of this isnt including fluids, the clutch, bellhousing and shifter if not on trans, slave cylinder, and rebuild kit for the 205. People are not joking when they say that these conversions can get expensive quick! Like others have said, not trying to scare you out of it, just beware that they can and do get very expensive.

quad 4x4 suggested that when running the 205 with a 4500 to use a double lip and double spring input seal on the 205 and to put a thread sealer on the bolts that fasten the stock adapter over the input shaft of the 205. he said to run about 1 extra quart of fluid in the 4500 to compensate for the added capacity by not using the seal over the coupler unless you wanted to run that liquid gold in the transfer case as well!!!

dieselwrencher seems to know what he is talking about and i have researched the hell out of the drive train options for a conversion and gathered both wrong and right parts and this seems to be the easiest route of them all. it might not be the cheapest but it is probably the strongest and easiest setup if locating all the parts separately.

rebelkid72 · 11-03-2010, 05:24 PM

Thanks this is my senior project and I only have 1500 saved up so for now I'll just buy the motor. Does anyone know how far I will need to box the frame in?
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**Dieselwrencher** · 11-03-2010, 06:47 PM

Ok, here is another option. If you can't find a NV4500 cheap enough to get done what you want, start out with a Getrag 360. It came from the 89-93 Dodges. Or just find a 2wd NV4500 and don't worry about the 4wd working until you save enough money up to complete the project.

rebelkid72 · 11-04-2010, 06:16 PM

Thanks but I still would like to know how far to box the frame in haha. And thanks for all the advice everybody I'm goin to go look at a 97 12v today. I'll let u know how that goes.
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**Dieselwrencher** · 11-04-2010, 07:35 PM

On boxing the frame, it depends what your plans are with the truck. On a pulling truck, I try to go as close to the trans cross member as I can get, and box it all the way back. For your project, I'd think boxing it in between the crossmembers would be fine. (From trans cross member to the cross member before the rear axle) These frames, 67-72, are strong enough you really don't have to box them for a daily driver or a mild tow vehicle.

rebelkid72 · 11-04-2010, 10:06 PM

Thanks I heard of people boxing from the front to under the cab
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Fursphere · 11-05-2010, 08:25 AM

Quote:

Originally Posted by rebelkid72

Thanks I heard of people boxing from the front to under the cab
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I believe the steering gear is what they're trying to protect on the front - these trucks like to yank the bolts right out of the frame in that area.

I would recommend a little research and a lot of re-enforcement in that particular area.

rebelkid72 · 11-05-2010, 10:49 AM

Yeah I've heard of the frames cracking at the power steering box. So it's a good idea to put a plate there.
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rebelkid72 · 11-06-2010, 09:53 PM

Well I bought the 97 dodge diesel truck. Compete accept the tranny and t case. Now the fun begins..

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rebelkid72 · 11-07-2010, 11:45 PM

Does anybody know where I can get the adapter from the cummins to my sm465
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1985-GMC · 11-07-2010, 11:52 PM

I think advanced adapters make them? Or find one from a 4bt bread truck. Also read this: http://www.4btswaps.com/forum/showthread.php?p=88284

This one might work, im not sure. http://cgi.ebay.com/ebaymotors/Cummi...Q5fAccessories

rebelkid72 · 11-08-2010, 12:10 AM

Holy sh***. That's alot for that adapter. I could buy a nv4500 for that much.
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Redcap · 11-08-2010, 01:58 AM

Quote:

Originally Posted by rebelkid72

Holy sh***. That's alot for that adapter. I could buy a nv4500 for that much.
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You are trying to play a fairly expensive game.

10-31-2010, 11:02 PM	#1
rebelkid72 Registered User Join Date: Apr 2010 Location: somwhere,ca Posts: 11	Np205 Help, I'm going to do a cummins swap in my 72 chevy and I have a line up on a 97 nv4500 but i don't know if my np205 will bolt up. Hellppp thanks. Posted via Mobile Device

11-01-2010, 01:11 AM	#2
1985-GMC Chevy Enthusiast Join Date: Jul 2009 Location: Canyon Lake Texas Posts: 2,024	Re: Np205 Is the nv4500 a dodge or chevy version? Dodge version will require a dodge 29 spline np205 from a 89-93 cummins+getrag. The chevy nv4500 will require a dodge bell housing and a dodge input shaft, and I think a 32 spline chevy np205 will bolt up to it. __________________ Tony 1985 GMC K2500 restoration Project: Rust, White & Blue 1989 Chevy R3500 CC Cummins & 4X4 swap some day... 1989 Burb (D60, 14BFF, 12V, NV4500, NP205, 37" tires in progress)

11-01-2010, 07:01 AM	#3
special-K Special Order Join Date: Nov 2004 Location: Mt Airy, MD Posts: 85,863	Re: Np205 You'll need the late 205 32 spline/round pattern,as mentioned,if it's a GM NV4500.Going all Dodge is the east button. __________________ "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 ~

11-01-2010, 09:41 PM	#6
Dieselwrencher 6>8 Plugless........ Join Date: Sep 2007 Location: Prairie City, Ia Posts: 17,135	Re: Np205 Because the chevy ones had no power ran through them. __________________ Ryan 1972 Chevy Longhorn K30 Cheyenne Super, 359 Inline 6 cylinder, Auto Trans, Tilt, Diesel Tach/Vach, Buckets, Rare Rear 4-link and air ride option Build Thread 1972 GMC Sierra Grande Longhorn 4x4 1972 Chevy Cheyenne Super K20 Long Step side tilt, tach, tow hooks, AC, 350 4 speed 1972 C10 Suburban Custom Deluxe 1969 Chevy milk truck 1971 Camaro RS 5.3 BTR STG3 Cam Super T10 1940 Ford 354 Hemi 46RH Ford 9" on air ride huge project *Tired of spark plugs? Check this out.*

11-01-2010, 10:11 PM	#8
rebelkid72 Registered User Join Date: Apr 2010 Location: somwhere,ca Posts: 11	Re: Np205 Thanks for all the feed back guys I'm just trying to figure out the cheapest way. Idk if buying the adapter to mate the 12v to my sm465 or make the guy a deal on the motor and tranny but since my t case won't work and i don't know where to get a passenger side drop t case for the tranny I'm in a pickle Posted via Mobile Device

11-01-2010, 10:57 PM	#9
snj8198 Registered User Join Date: Feb 2007 Location: Star Valley, WY Posts: 2,038	Re: Np205 __________________ Steve 1971 GMC Longbox. Full Roller Stroker 489 w/ FiTech EFI, Chris Straub Cam/NV4500/205/D60/14B w. Grizzly Locker and 4.11's. 2" Lift on 33's

11-02-2010, 12:21 AM	#10
Dieselwrencher 6>8 Plugless........ Join Date: Sep 2007 Location: Prairie City, Ia Posts: 17,135	Re: Np205 The easiest thing IMO would be just to find a NV4500 from a 94-02 dodge, then find a NP205 from a 5 speed first gen dodge 89-93. It'll be right, and the cheapest route. The engine plates and flywheels and clutches are easy to find and they're a lot of options to go. __________________ Ryan 1972 Chevy Longhorn K30 Cheyenne Super, 359 Inline 6 cylinder, Auto Trans, Tilt, Diesel Tach/Vach, Buckets, Rare Rear 4-link and air ride option Build Thread 1972 GMC Sierra Grande Longhorn 4x4 1972 Chevy Cheyenne Super K20 Long Step side tilt, tach, tow hooks, AC, 350 4 speed 1972 C10 Suburban Custom Deluxe 1969 Chevy milk truck 1971 Camaro RS 5.3 BTR STG3 Cam Super T10 1940 Ford 354 Hemi 46RH Ford 9" on air ride huge project *Tired of spark plugs? Check this out.*

11-02-2010, 12:44 AM	#11
rebelkid72 Registered User Join Date: Apr 2010 Location: somwhere,ca Posts: 11	Re: Np205 Well for now I think I'll buy the motor and save up for the tranny and t case. Does anyone know how far back I have to box the frame in? Posted via Mobile Device

11-02-2010, 06:05 AM	#12
special-K Special Order Join Date: Nov 2004 Location: Mt Airy, MD Posts: 85,863	Re: Np205 Oops! I meant "easy" button,not "east". __________________ "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 ~

11-03-2010, 03:31 PM	#13
dfairchild19 Registered User Join Date: Feb 2010 Location: Dayton, OH Posts: 255	Re: Np205 i bought a 94 donor with the cummins and 4500 but it was 2wd. i converted it to 4wd by changing out the mainshaft and the 4x4 housing. then i found a 29 spline 205 from an 89-93 cummins/getrag combo with the coupler. i think that this was the easiest route to take but most likely the most expensive, especially if you gather all of these parts separately. the motor will usually be around 1500 for a running motor, a good nv4500 can probably be found for between 1200 and 1000 and the 205 can be anywhere from 400 for decent used to 1000 for a rebuilt case. you will have at least 3000 in the drive train if you part it all together. i paid 1800 for my donor truck, 500 for my 29 spline 205, about 500 for the 4500 mainshaft, rebuild kit, and 4x4 housing and coupler; and all of this isnt including fluids, the clutch, bellhousing and shifter if not on trans, slave cylinder, and rebuild kit for the 205. People are not joking when they say that these conversions can get expensive quick! Like others have said, not trying to scare you out of it, just beware that they can and do get very expensive. quad 4x4 suggested that when running the 205 with a 4500 to use a double lip and double spring input seal on the 205 and to put a thread sealer on the bolts that fasten the stock adapter over the input shaft of the 205. he said to run about 1 extra quart of fluid in the 4500 to compensate for the added capacity by not using the seal over the coupler unless you wanted to run that liquid gold in the transfer case as well!!! dieselwrencher seems to know what he is talking about and i have researched the hell out of the drive train options for a conversion and gathered both wrong and right parts and this seems to be the easiest route of them all. it might not be the cheapest but it is probably the strongest and easiest setup if locating all the parts separately.

11-03-2010, 05:24 PM	#14
rebelkid72 Registered User Join Date: Apr 2010 Location: somwhere,ca Posts: 11	Re: Np205 Thanks this is my senior project and I only have 1500 saved up so for now I'll just buy the motor. Does anyone know how far I will need to box the frame in? Posted via Mobile Device

11-03-2010, 06:47 PM	#15
Dieselwrencher 6>8 Plugless........ Join Date: Sep 2007 Location: Prairie City, Ia Posts: 17,135	Re: Np205 Ok, here is another option. If you can't find a NV4500 cheap enough to get done what you want, start out with a Getrag 360. It came from the 89-93 Dodges. Or just find a 2wd NV4500 and don't worry about the 4wd working until you save enough money up to complete the project. __________________ Ryan 1972 Chevy Longhorn K30 Cheyenne Super, 359 Inline 6 cylinder, Auto Trans, Tilt, Diesel Tach/Vach, Buckets, Rare Rear 4-link and air ride option Build Thread 1972 GMC Sierra Grande Longhorn 4x4 1972 Chevy Cheyenne Super K20 Long Step side tilt, tach, tow hooks, AC, 350 4 speed 1972 C10 Suburban Custom Deluxe 1969 Chevy milk truck 1971 Camaro RS 5.3 BTR STG3 Cam Super T10 1940 Ford 354 Hemi 46RH Ford 9" on air ride huge project *Tired of spark plugs? Check this out.*

11-04-2010, 06:16 PM	#16
rebelkid72 Registered User Join Date: Apr 2010 Location: somwhere,ca Posts: 11	Re: Np205 Thanks but I still would like to know how far to box the frame in haha. And thanks for all the advice everybody I'm goin to go look at a 97 12v today. I'll let u know how that goes. Posted via Mobile Device

11-04-2010, 07:35 PM	#17
Dieselwrencher 6>8 Plugless........ Join Date: Sep 2007 Location: Prairie City, Ia Posts: 17,135	Re: Np205 On boxing the frame, it depends what your plans are with the truck. On a pulling truck, I try to go as close to the trans cross member as I can get, and box it all the way back. For your project, I'd think boxing it in between the crossmembers would be fine. (From trans cross member to the cross member before the rear axle) These frames, 67-72, are strong enough you really don't have to box them for a daily driver or a mild tow vehicle. __________________ Ryan 1972 Chevy Longhorn K30 Cheyenne Super, 359 Inline 6 cylinder, Auto Trans, Tilt, Diesel Tach/Vach, Buckets, Rare Rear 4-link and air ride option Build Thread 1972 GMC Sierra Grande Longhorn 4x4 1972 Chevy Cheyenne Super K20 Long Step side tilt, tach, tow hooks, AC, 350 4 speed 1972 C10 Suburban Custom Deluxe 1969 Chevy milk truck 1971 Camaro RS 5.3 BTR STG3 Cam Super T10 1940 Ford 354 Hemi 46RH Ford 9" on air ride huge project *Tired of spark plugs? Check this out.* Last edited by Dieselwrencher; 11-04-2010 at 07:36 PM.

11-04-2010, 10:06 PM	#18
rebelkid72 Registered User Join Date: Apr 2010 Location: somwhere,ca Posts: 11	Re: Np205 Thanks I heard of people boxing from the front to under the cab Posted via Mobile Device



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11-05-2010, 10:49 AM	#20
rebelkid72 Registered User Join Date: Apr 2010 Location: somwhere,ca Posts: 11	Re: Np205 Yeah I've heard of the frames cracking at the power steering box. So it's a good idea to put a plate there. Posted via Mobile Device

11-06-2010, 09:53 PM	#21
rebelkid72 Registered User Join Date: Apr 2010 Location: somwhere,ca Posts: 11	Re: Np205 Well I bought the 97 dodge diesel truck. Compete accept the tranny and t case. Now the fun begins.. Posted via Mobile Device

11-07-2010, 11:45 PM	#22
rebelkid72 Registered User Join Date: Apr 2010 Location: somwhere,ca Posts: 11	Re: Np205 Does anybody know where I can get the adapter from the cummins to my sm465 Posted via Mobile Device

11-07-2010, 11:52 PM	#23
1985-GMC Chevy Enthusiast Join Date: Jul 2009 Location: Canyon Lake Texas Posts: 2,024	Re: Np205 I think advanced adapters make them? Or find one from a 4bt bread truck. Also read this: http://www.4btswaps.com/forum/showthread.php?p=88284 This one might work, im not sure. http://cgi.ebay.com/ebaymotors/Cummi...Q5fAccessories __________________ Tony 1985 GMC K2500 restoration Project: Rust, White & Blue 1989 Chevy R3500 CC Cummins & 4X4 swap some day... 1989 Burb (D60, 14BFF, 12V, NV4500, NP205, 37" tires in progress) Last edited by 1985-GMC; 11-07-2010 at 11:55 PM.

11-08-2010, 12:10 AM	#24
rebelkid72 Registered User Join Date: Apr 2010 Location: somwhere,ca Posts: 11	Re: Np205 Holy sh**. That's alot for that adapter. I could buy a nv4500 for that much. Posted via Mobile Device* Last edited by rebelkid72; 11-08-2010 at 12:10 AM.

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