Need help to ID this transfer gear unit - The 1947 - Present Chevrolet & GMC Truck Message Board Network

CCCC · 06-30-2008, 12:48 AM

This transfer gearbox is not at all like the NP205 units in my other 72 Blazers. I was told that it is a "Dana 40" from a 1970 Blazer. I cannot find any info on a "Dana 40" and am thinking that the guy may have stated the wrong make and model #. The front axle/diff setup with it seems to be a Dana 44 and maybe this unit is a Dana 20 or another Dana model # if there is one. Or, is it a Rockwell item and, if so, which model #?

Please take a look at these two pics (top view and end view) and give me a specific ID.

Also, is there any reason why a person could not heat and bend the upper portion of this shift stick so that the stick will conform to the hump opening and line up near the 4 speed manual trans shifter as does the NP205 stick?

All help will be appreciated.
CCCC

70rs/ss · 06-30-2008, 01:04 AM

Probably not a lot of help, but I don't think it's a rockwell as they have a cone shaped cover over the pto shaft (the flat cover to the right of the output shaft on the rear of TC)? Not a 205 for sure. As for the stick, you can cut weld, heat bend, whatever it takes, but can the trans bolt to the motor?

72 CustomCamper · 06-30-2008, 02:22 AM

It's a Dana 20 T-case...

Chuck

Blazer1970 · 06-30-2008, 06:47 AM

Yup, Dana 20 out of a Blazer/Jimmy.

CCCC · 06-30-2008, 11:43 AM

Thanks for the responses and info to 70rs/ss, 72CustomCamper and Blazer1970. Looks like Chevrolet used both the Dana 20 and the NP205 in 1970, probably depending on the engine type (don't know on this one) or transmission type (this is on a 4 speed Muncie). Now I can proceed. Thanks again.
CCCC

**Yukon Jack** · 06-30-2008, 12:18 PM

If you stick with the placement of the shifter, I have a chrome shifter surround that you're welcome to have for the shipping cost. My 70 K5 apparently had the Dana 20 originally but it was MIA when I bought the K5 but it did have this bezel mounted in the K5 and presume it is for a Dana 20.

70rs/ss · 06-30-2008, 08:01 PM

I thought the only two (gm used in these) were the 205 and the rockwell 221 (is that right?), well I learned somethin' new, Dana 20 as well woo hoo!

CCCC · 07-01-2008, 05:07 PM

Yukon Jack - you are too cool. I would like to use it as, so appreciate your offer and will do. Can you send me a PM with the shipping cost and your mail address so I can send you the $$?

**jerry moss** · 07-02-2008, 09:53 PM

the dana 20 was a blazer only thing.

06-30-2008, 12:48 AM	#1
CCCC Registered User Join Date: Mar 2007 Location: San Pedro River, SE Arizona Posts: 734	Need help to ID this transfer gear unit This transfer gearbox is not at all like the NP205 units in my other 72 Blazers. I was told that it is a "Dana 40" from a 1970 Blazer. I cannot find any info on a "Dana 40" and am thinking that the guy may have stated the wrong make and model #. The front axle/diff setup with it seems to be a Dana 44 and maybe this unit is a Dana 20 or another Dana model # if there is one. Or, is it a Rockwell item and, if so, which model #? Please take a look at these two pics (top view and end view) and give me a specific ID. Also, is there any reason why a person could not heat and bend the upper portion of this shift stick so that the stick will conform to the hump opening and line up near the 4 speed manual trans shifter as does the NP205 stick? All help will be appreciated. CCCC __________________ CCCC 67 Sting Ray Coupe 327 4sp; 68 K10 Suburban 327 4sp; 69 K20 Lifted 383 4sp; 69 C80 Fire Truck 478 V6 5sp/2sp; 69 C20 Longhorn 327 4sp; 70 C30 Wrecker 350 4sp; 70 C30 Flat Bed 350 4sp; 71 C20 LWB 350 4sp; 72 K5 Blazer 350 4sp; 72 C30 Flat Bed Gooseneck Hauler with sleeper 350/TH400; 72 C20 Longhorn 402 4sp; 52 Mack LTL Supercharged Cummins 5sp x 3sp; 01 Dodge 5.9 HO Cummins 6spd; 02 Safari Trek 2430 8.1 Vortec on Workhorse Chassis; 03 Silverado 2500 HD 4wd Duramax/Allison Moved but still in the family 70 C20 Custom Camper 350/TH350; 72 K5 Blazer CST Highlander 350/TH350 Recently sent to new homes 72 C30 MoHome 402 4sp; 72 K5 Blazer Conv 350 4sp; 75 GMC 6000 Aerial 350 w Allison; 72 GMC 3500 Utility 350 4sp; 70 GMC 3500, 350 4sp Last edited by CCCC; 05-11-2010 at 12:20 AM.

06-30-2008, 01:04 AM	#2
70rs/ss Registered User Join Date: Dec 2004 Location: Northern AZ Posts: 7,270	Re: Need help to ID this transfer gear unit Probably not a lot of help, but I don't think it's a rockwell as they have a cone shaped cover over the pto shaft (the flat cover to the right of the output shaft on the rear of TC)? Not a 205 for sure. As for the stick, you can cut weld, heat bend, whatever it takes, but can the trans bolt to the motor? Last edited by 70rs/ss; 06-30-2008 at 01:06 AM.

06-30-2008, 02:22 AM	#3
72 CustomCamper huh ??? Join Date: Nov 2002 Location: Fredericksburg,Va. Posts: 3,368	Re: Need help to ID this transfer gear unit It's a Dana 20 T-case... Chuck __________________ 90 Blazer Silverado 350w/ 700R4 and 32" Kelly's "I am a bomb technician. If you see me running try to keep up!"

06-30-2008, 06:47 AM	#4
Blazer1970 Registered User Join Date: Dec 1999 Location: Old Mission, MI, USA Posts: 2,507	Re: Need help to ID this transfer gear unit Yup, Dana 20 out of a Blazer/Jimmy. __________________ Tim

06-30-2008, 11:43 AM	#5
CCCC Registered User Join Date: Mar 2007 Location: San Pedro River, SE Arizona Posts: 734	Re: Need help to ID this transfer gear unit Thanks for the responses and info to 70rs/ss, 72CustomCamper and Blazer1970. Looks like Chevrolet used both the Dana 20 and the NP205 in 1970, probably depending on the engine type (don't know on this one) or transmission type (this is on a 4 speed Muncie). Now I can proceed. Thanks again. CCCC __________________ CCCC 67 Sting Ray Coupe 327 4sp; 68 K10 Suburban 327 4sp; 69 K20 Lifted 383 4sp; 69 C80 Fire Truck 478 V6 5sp/2sp; 69 C20 Longhorn 327 4sp; 70 C30 Wrecker 350 4sp; 70 C30 Flat Bed 350 4sp; 71 C20 LWB 350 4sp; 72 K5 Blazer 350 4sp; 72 C30 Flat Bed Gooseneck Hauler with sleeper 350/TH400; 72 C20 Longhorn 402 4sp; 52 Mack LTL Supercharged Cummins 5sp x 3sp; 01 Dodge 5.9 HO Cummins 6spd; 02 Safari Trek 2430 8.1 Vortec on Workhorse Chassis; 03 Silverado 2500 HD 4wd Duramax/Allison Moved but still in the family 70 C20 Custom Camper 350/TH350; 72 K5 Blazer CST Highlander 350/TH350 Recently sent to new homes 72 C30 MoHome 402 4sp; 72 K5 Blazer Conv 350 4sp; 75 GMC 6000 Aerial 350 w Allison; 72 GMC 3500 Utility 350 4sp; 70 GMC 3500, 350 4sp

06-30-2008, 12:18 PM	#6
Yukon Jack Post Whore Join Date: Feb 2000 Location: Rose Hill, KS, USA Posts: 12,686	Re: Need help to ID this transfer gear unit If you stick with the placement of the shifter, I have a chrome shifter surround that you're welcome to have for the shipping cost. My 70 K5 apparently had the Dana 20 originally but it was MIA when I bought the K5 but it did have this bezel mounted in the K5 and presume it is for a Dana 20. __________________ 1970 Blazer with a 400 sbc and 4" lift 1980 Pontiac Trans Am, 455 Oldsmobile 2012 Kawasaki Concours 14 Last edited by Yukon Jack; 06-30-2008 at 12:19 PM.

06-30-2008, 08:01 PM	#7
70rs/ss Registered User Join Date: Dec 2004 Location: Northern AZ Posts: 7,270	Re: Need help to ID this transfer gear unit I thought the only two (gm used in these) were the 205 and the rockwell 221 (is that right?), well I learned somethin' new, Dana 20 as well woo hoo!

07-01-2008, 05:07 PM	#8
CCCC Registered User Join Date: Mar 2007 Location: San Pedro River, SE Arizona Posts: 734	Re: Need help to ID this transfer gear unit Yukon Jack - you are too cool. I would like to use it as, so appreciate your offer and will do. Can you send me a PM with the shipping cost and your mail address so I can send you the $$? __________________ CCCC 67 Sting Ray Coupe 327 4sp; 68 K10 Suburban 327 4sp; 69 K20 Lifted 383 4sp; 69 C80 Fire Truck 478 V6 5sp/2sp; 69 C20 Longhorn 327 4sp; 70 C30 Wrecker 350 4sp; 70 C30 Flat Bed 350 4sp; 71 C20 LWB 350 4sp; 72 K5 Blazer 350 4sp; 72 C30 Flat Bed Gooseneck Hauler with sleeper 350/TH400; 72 C20 Longhorn 402 4sp; 52 Mack LTL Supercharged Cummins 5sp x 3sp; 01 Dodge 5.9 HO Cummins 6spd; 02 Safari Trek 2430 8.1 Vortec on Workhorse Chassis; 03 Silverado 2500 HD 4wd Duramax/Allison Moved but still in the family 70 C20 Custom Camper 350/TH350; 72 K5 Blazer CST Highlander 350/TH350 Recently sent to new homes 72 C30 MoHome 402 4sp; 72 K5 Blazer Conv 350 4sp; 75 GMC 6000 Aerial 350 w Allison; 72 GMC 3500 Utility 350 4sp; 70 GMC 3500, 350 4sp

07-02-2008, 09:53 PM	#9
jerry moss Born Psycho Join Date: Feb 2001 Location: brentwood,cal,usa Posts: 4,936	Re: Need help to ID this transfer gear unit the dana 20 was a blazer only thing. __________________ jerry moss 72 cheyenne super K20- tilt,tach,vacuum,speedwarning,buckets,shoulder belts,am/fm,tow hooks,bumper guards,toolbox,aux. fuel tank,posi front and rear,plus other goodies!!! SOLD 69 suburban K20-tilt,tach,vacuum,speedwarning,buckets,shoulder belts,am/fm,4 inch all spring lift,4 speed, 14 bolt full floater, dana 44 HD,warn winch,posi front and rear,tow hooks,plus other goodies. 73/80 chevy/gmc K20 SB400,turbo 400,205,tilt,a-c,gas hog. 77 K/5 cheyenne blazer-daily driver/beater. SON HAS IT NOW BRENTWOOD,CALIFORNIA

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