47rh in c20? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Nott32 · 11-06-2014, 04:23 PM

I havent seen anyon e use this transmission in a swap but id like to save 2k and not buy an adapter and controller. If the nv 5 speed fits the 47rh should too correct? I undertsand i will need to get a custom drive line but at the very least it would a cheaper option. Any builds i missed or advice?

I have a 1st gen 12v

Thanks!!!

Got Smoke? · 11-06-2014, 04:31 PM

Lots of information on how to build a 47RH/RE on www.CompetitionDiesel.com user "Big Blue24" has very detailed and picture filled posts.

The 47RH is ideal in a conversion/swap because 1-3 are shifted hydraulically, and you can control TC lock up and over drive by toggle switches.

I'm currently trying to find a RH core to build and swap into my 97 Dodge in place of the NV4500, but the RH's are a little harder to find only being used for a couple of years vs the RE's.

clinebarger · 11-06-2014, 07:24 PM

Why not just use a 47RE/48RE? The electronics are stupid simple. And as a benefit the PCM will control the Alternator & Grid Heater.

The only major difference between the RH & RE is.... The RH uses a Hydraulic Governor, The RE uses Electronic Governor Solenoid & Governor Pressure feedback Sensor.

Got Smoke? · 11-07-2014, 02:03 AM

Because the RH doesn't require electronics or a PCM to work so its much cheaper to use.

v-man · 11-07-2014, 07:01 AM

Dieselwrencher used the 47rh on my 89 GMC suburban. It's been working great. 2 manual switches 1 for overdrive 1 for torque converter.

clinebarger · 11-07-2014, 07:51 PM

Quote:

Originally Posted by Got Smoke?

Because the RH doesn't require electronics or a PCM to work so its much cheaper to use.

OK, I was just throwing it out there, Though the PCM's are not that expensive, A PCM & harness can be had cheap from wreaking yards.

patdaly · 11-07-2014, 10:20 PM

Quote:

Originally Posted by Got Smoke?

Lots of information on how to build a 47RH/RE on www.CompetitionDiesel.com user "Big Blue24" has very detailed and picture filled posts.

The 47RH is ideal in a conversion/swap because 1-3 are shifted hydraulically, and you can control TC lock up and over drive by toggle switches.

I'm currently trying to find a RH core to build and swap into my 97 Dodge in place of the NV4500, but the RH's are a little harder to find only being used for a couple of years vs the RE's.

It is relatively easy to change the 91-93 A518 from a first gen Cummins into a 47RH. Better buy a few unloved ones, because as this gets out, they are going to go up.............

Enjoy.

http://www.dieseltruckresource.com/d...p-t318014.html

**Dieselwrencher** · 11-08-2014, 01:53 AM

Quote:

Originally Posted by Nott32

I havent seen anyon e use this transmission in a swap but id like to save 2k and not buy an adapter and controller. If the nv 5 speed fits the 47rh should too correct? I undertsand i will need to get a custom drive line but at the very least it would a cheaper option. Any builds i missed or advice?

I have a 1st gen 12v

Thanks!!!

47rh's are in 94 and 95 V10 and Cummins trucks. 46rh's are in a lot of gas 360 and some 318 93-95 trucks. I've missed out on several 46rh's I would have baught for parts but didn't need them at the time. I have a 47rh in my wife's excursion, we put one in my Dad's 91 F-350, and I just put one in my Longhorn. I really like them. As far as the drive shafts, the 47rh ones will be shorter on the front and too long on the rear compared to a NV4500.

**Dieselwrencher** · 12-04-2014, 06:42 PM

If you go with a 47rh, here is a really affordable controller I came across on another forum that may be the ticket for controlling these.

http://www.hgmelectronics.com/produc...s/csm-chrysler

72MARIO · 12-04-2014, 08:38 PM

I tried that link its no good. I am interested in it if you could repost that link it would be great !

**Dieselwrencher** · 12-05-2014, 12:41 AM

Fixed the link.

**gerfunken** · 12-05-2014, 05:57 PM

A friend of mine turned me on to these, saying that he's used them before and they work well.

http://www.bmracing.com/products/702...ue-converters/

**Dieselwrencher** · 12-05-2014, 07:27 PM

Quote:

Originally Posted by gerfunken

A friend of mine turned me on to these, saying that he's used them before and they work well.

http://www.bmracing.com/products/702...ue-converters/

That only controls lock up from what I'm seeing. You'd still have to do something for OD. It might work on an A518 though. Use the controller to operate the overdrive.

**gerfunken** · 01-06-2015, 02:13 AM

Quote:

Originally Posted by Dieselwrencher

That only controls lock up from what I'm seeing. You'd still have to do something for OD. It might work on an A518 though. Use the controller to operate the overdrive.

He was planning on running two, one for the lockup, one for the OD.

**Dieselwrencher** · 01-06-2015, 01:02 PM

Have you seen the compushift mini for the 47rh's now? I'll post a link later. They're only $350.

11-06-2014, 04:23 PM	#1
Nott32 Registered User Join Date: Jun 2014 Location: Zeroday, Ca Posts: 7	47rh in c20? I havent seen anyon e use this transmission in a swap but id like to save 2k and not buy an adapter and controller. If the nv 5 speed fits the 47rh should too correct? I undertsand i will need to get a custom drive line but at the very least it would a cheaper option. Any builds i missed or advice? I have a 1st gen 12v Thanks!!!

11-06-2014, 04:31 PM	#2
Got Smoke? Registered User Join Date: Oct 2011 Location: Bethpage TN Posts: 42	Re: 47rh in c20? Lots of information on how to build a 47RH/RE on www.CompetitionDiesel.com user "Big Blue24" has very detailed and picture filled posts. The 47RH is ideal in a conversion/swap because 1-3 are shifted hydraulically, and you can control TC lock up and over drive by toggle switches. I'm currently trying to find a RH core to build and swap into my 97 Dodge in place of the NV4500, but the RH's are a little harder to find only being used for a couple of years vs the RE's. __________________ 97 Dodge 2500 12V NV4500... way to much to list. 79 Chevy K20 4" RC/37" GY OZ's 350/465/205.... restoration somewhere in the futue.... NEW: Project 88 Chevy R3500 3+3 / 88 V3500 3+3 combing two to make one....

11-06-2014, 07:24 PM	#3
clinebarger Senior Member Join Date: May 2009 Location: Fort Worth, TX Posts: 6,370	Re: 47rh in c20? Why not just use a 47RE/48RE? The electronics are stupid simple. And as a benefit the PCM will control the Alternator & Grid Heater. The only major difference between the RH & RE is.... The RH uses a Hydraulic Governor, The RE uses Electronic Governor Solenoid & Governor Pressure feedback Sensor.

11-07-2014, 02:03 AM	#4
Got Smoke? Registered User Join Date: Oct 2011 Location: Bethpage TN Posts: 42	Re: 47rh in c20? Because the RH doesn't require electronics or a PCM to work so its much cheaper to use. __________________ 97 Dodge 2500 12V NV4500... way to much to list. 79 Chevy K20 4" RC/37" GY OZ's 350/465/205.... restoration somewhere in the futue.... NEW: Project 88 Chevy R3500 3+3 / 88 V3500 3+3 combing two to make one....

11-07-2014, 07:01 AM	#5
v-man Registered User Join Date: Dec 2012 Location: Macksburg, Iowa Posts: 47	Re: 47rh in c20? Dieselwrencher used the 47rh on my 89 GMC suburban. It's been working great. 2 manual switches 1 for overdrive 1 for torque converter.

12-04-2014, 06:42 PM	#9
Dieselwrencher 6>8 Plugless........ Join Date: Sep 2007 Location: Prairie City, Ia Posts: 17,142	Re: 47rh in c20? If you go with a 47rh, here is a really affordable controller I came across on another forum that may be the ticket for controlling these. http://www.hgmelectronics.com/produc...s/csm-chrysler __________________ 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; 12-05-2014 at 12:41 AM.

12-04-2014, 08:38 PM	#10
72MARIO Registered User Join Date: Nov 2000 Location: Huntsville Ontario Canada Posts: 4,051	Re: 47rh in c20? I tried that link its no good. I am interested in it if you could repost that link it would be great ! __________________ 1968 Suburban numbers matching all original truck now equipped with 6.0/4L80 on Accuair http://67-72chevytrucks.com/vboard/s...d.php?t=625017 1967 C/20 6.0/4L80 Roofing Truck 1990 V2500 Suburban "Plow Truck" 2005 TAHOE DD

12-05-2014, 12:41 AM	#11
Dieselwrencher 6>8 Plugless........ Join Date: Sep 2007 Location: Prairie City, Ia Posts: 17,142	Re: 47rh in c20? Fixed the link. __________________ 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.*

12-05-2014, 05:57 PM	#12
gerfunken Registered User Join Date: Feb 2009 Location: Surprise, AZ Posts: 490	Re: 47rh in c20? A friend of mine turned me on to these, saying that he's used them before and they work well. http://www.bmracing.com/products/702...ue-converters/ __________________ -Scott 1972 Chevy K20 Picture Gallery Build Thread 1930 Chevy AD Picture Gallery 1929 Ford Model-A Picture Gallery 1975 Triumph TR-6 Picture Gallery

01-06-2015, 01:02 PM	#15
Dieselwrencher 6>8 Plugless........ Join Date: Sep 2007 Location: Prairie City, Ia Posts: 17,142	Re: 47rh in c20? Have you seen the compushift mini for the 47rh's now? I'll post a link later. They're only $350. __________________ 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.*



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