56 3600 SBC/4WD Trans Question - The 1947 - Present Chevrolet & GMC Truck Message Board Network

mvitale27 · 10-18-2013, 02:09 PM

Hey guys,

I have a 383 stroker I built from a 73 vette's 350. I am going to do a 4WD conversion on my truck and I already have an np205 transfer case. I will most likely be running Dana 44 in the front and corporate 12 in the rear. 383 will be putting out about 400 hp and 450 ft lbs of torque.

I am looking for a 5-speed manual w/ overdrive. I heard good things about the NV4500 and I know it hooks up with the SBC and np205, but I also believe it is a low-geared slow-shifting truck tranny? Mainly this truck is going to be powerful, the 4WD conversion is only for snowy winters. I need the overdrive for 3 hours of daily highway/country road commuting and I would like a sportier transmission. I was looking for more of something like the Tremec TKO, but I don't believe it will work with the np205.

Any ideas?

BLAZERMAN · 10-18-2013, 03:01 PM

I would go with a divorced NP205 from an early to mid 70s Dodge, that way you can run any Trans you can come up with and not have to worry about adapting a Trans to work.

andrewmp6 · 10-19-2013, 03:21 AM

I would do the nv4500 with the adapter kit to use the np205 on it.But what size tires are you going to run on it?

**argonaut** · 10-19-2013, 12:18 PM

If you decide on an nv4500 use a 95+ version. 1st gear isn't as low and the gears are spaced more closely together.

mvitale27 · 10-20-2013, 10:26 PM

Thanks for the info if I do decide to go with the nv4500

mvitale27 · 10-22-2013, 09:15 AM

Quote:

Originally Posted by andrewmp6

I would do the nv4500 with the adapter kit to use the np205 on it.But what size tires are you going to run on it?

I am pretty sure I will be going with 3.73 gears and about 29" tires. After doing some more research, I am leaning back towards the nv4500/np205 again. This thing is going to be heavy and possible tow the snowmobiles back and forth from Rhode Island to Maine.

10-18-2013, 02:09 PM	#1
mvitale27 Registered User Join Date: Oct 2013 Location: Rhode Island Posts: 199	56 3600 SBC/4WD Trans Question Hey guys, I have a 383 stroker I built from a 73 vette's 350. I am going to do a 4WD conversion on my truck and I already have an np205 transfer case. I will most likely be running Dana 44 in the front and corporate 12 in the rear. 383 will be putting out about 400 hp and 450 ft lbs of torque. I am looking for a 5-speed manual w/ overdrive. I heard good things about the NV4500 and I know it hooks up with the SBC and np205, but I also believe it is a low-geared slow-shifting truck tranny? Mainly this truck is going to be powerful, the 4WD conversion is only for snowy winters. I need the overdrive for 3 hours of daily highway/country road commuting and I would like a sportier transmission. I was looking for more of something like the Tremec TKO, but I don't believe it will work with the np205. Any ideas? __________________ 1956 Chevy 3600 Matt's 3/4T 4X4 Build

10-18-2013, 03:01 PM	#2
BLAZERMAN Currently Blazerless Join Date: Apr 2000 Location: St. Joseph Mo. Posts: 4,829	Re: 56 3600 SBC/4WD Trans Question I would go with a divorced NP205 from an early to mid 70s Dodge, that way you can run any Trans you can come up with and not have to worry about adapting a Trans to work. __________________ 1972 C/30 133" W.B. C&C 1970 GMC 3500 157" W.B. single wheel C&C

10-19-2013, 03:21 AM	#3
andrewmp6 Registered User Join Date: Jan 2009 Location: Louisville,Ky Posts: 5,811	Re: 56 3600 SBC/4WD Trans Question I would do the nv4500 with the adapter kit to use the np205 on it.But what size tires are you going to run on it?

10-19-2013, 12:18 PM	#4
argonaut Senior Member Join Date: Aug 2008 Location: Long Beach, CA Posts: 1,813	Re: 56 3600 SBC/4WD Trans Question If you decide on an nv4500 use a 95+ version. 1st gear isn't as low and the gears are spaced more closely together. __________________ Jason M. @argonaut62 1972 K5 Blazer CST, Turquoise 1966 K20 Short Fleet Pickup, Big Ugly 1964 C10 Short Fleet, Gertrude 2001 Porsche 911 Carrera 1996 Ford Bronco XLT 1980 Jeep Wagoneer 2008 Honda CBR1000RR 2005 Honda RC51 1981 Honda CB750C No dis-assemble Johnny Five! No dis-assemble! Last edited by argonaut; 10-20-2013 at 10:28 PM. Reason: spellchecker

10-20-2013, 10:26 PM	#5
mvitale27 Registered User Join Date: Oct 2013 Location: Rhode Island Posts: 199	Re: 56 3600 SBC/4WD Trans Question Thanks for the info if I do decide to go with the nv4500 __________________ 1956 Chevy 3600 Matt's 3/4T 4X4 Build



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