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08-06-2013, 11:25 PM
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#1 |
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Registered User
Join Date: Aug 2013
Location: soon to be Coeur d'Alene, ID
Posts: 5
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Tranny and transfer case question
What 4-speed transmission and transfer case came in the 1968 4x4 1/2 ton? I am removing these to install an automatic for the wife and didn't want to scrap them if they are useful to someone.
So what are they and is there a market for them? Thank you |
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08-06-2013, 11:27 PM
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#2 |
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Registered User
Join Date: May 2010
Location: Lewis County, WA
Posts: 1,523
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Re: Tranny and transfer case question
I think that is the SM420 trans and Rockwell T221 transfer, but not 100% sure.
__________________
'77 K35 - 454, SM465/NP205, 4.56 D60/14bFF |
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08-07-2013, 12:08 AM
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#3 |
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Registered User
 
Join Date: Feb 2007
Location: Star Valley, WY
Posts: 2,038
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Re: Tranny and transfer case question
ya, '68 was about the last year of the sm420/221 combo, switched out for the sm465/221 (iirc), then on to the 465/205 combo. post some pics and we'll be able to help ya out. regardles, i doubt it's something you want to just toss.
welcome to the board.
__________________
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 |
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08-12-2013, 10:01 PM
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#4 |
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Registered User
Join Date: Mar 2010
Location: Minneapolis Minnesota
Posts: 70
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Re: Tranny and transfer case question
I am 99.9% sure my 68 k10 has sm465 and Rockwell 221!
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08-12-2013, 10:08 PM
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#5 |
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What?
Join Date: Jun 2007
Location: Southern California
Posts: 7,617
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Re: Tranny and transfer case question
1968 K20 = SM465, and Rockwell T-221.
__________________
Chris 1968 K20 Suburban 1972 K10 LWB PU |
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08-12-2013, 10:29 PM
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#6 |
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Registered User
Join Date: Mar 2010
Location: Minneapolis Minnesota
Posts: 70
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Re: Tranny and transfer case question
See link to Novak for detailed descriptions of these tranny's. Mine is the 465, heavily ribbed as described at Novak.
http://www.novak-adapt.com/knowledge/sm465.htm |
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08-13-2013, 12:34 PM
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#7 | |
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Registered User
Join Date: Feb 2007
Location: Star Valley, WY
Posts: 2,038
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Re: Tranny and transfer case question
Quote:
__________________
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 |
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08-18-2013, 11:36 PM
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#8 |
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Registered User
Join Date: Aug 2013
Location: soon to be Coeur d'Alene, ID
Posts: 5
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Re: Tranny and transfer case question
Thank you guys very much, you are very helpful.
__________________
'68 Suburban K10 current build for wife '74 C30 utility bed 350/350 work truck '69 F250 Crew Cab 4x4 |
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