79 chev c20 4x4 question - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Midwestchopshop · 08-21-2005, 10:13 AM

Hi i am buying a 1979 chevy c20 4x4 and have a question. It had a 400 motor in it and still has the th400 in it. My question is with that engine and tranny combo does it have the np 205 t-case in it?

Thanks
Brian
Midwestchopshop

*1FaastC10* · 08-21-2005, 01:46 PM

it could have an NP203, or it could have an NP205. a C20 shouldnt have a transfer case at all though, C20s are 2wd. K20s are 4wd.

Midwestchopshop · 08-21-2005, 07:44 PM

yeah i know i forgot that its a k20 im so use to having 2wd's.
Thanks

magnethead · 08-21-2005, 08:58 PM

full time = 203 part time = 205. check the stick. one will have 2 WD and 4 WD, the other will have drive and neutral. something like that.

1976K5CHALET · 08-23-2005, 02:35 AM

79 was still full time 4wd time....as a general rule of thumb thats not allways correct....half and 3/4 tons came with 203's...1 tons allways got the dana 60 fronts and np205's. GM did a weirdo in 80....all K5's came with 205's....regardless across the board....before that usually a standard trans allways got the 205...but like i said there has been some weirdness out there such as one my friend in phx bought....79 1 ton crew cab...ex gov rez truck....straight 6/ th400/ np203...

Easy way to figure it out without cleaning crud looking for the tag in the case is to look at the rear of the case....if there is a small metal plate with three bolts between the output shaft on the top and the case cover on the bottom you have a np205....and the most desirable stough version ava. For pics cruise over to offroaddesign.com....steve has a whole page over there with pics....

Doug W

08-21-2005, 10:13 AM	#1
Midwestchopshop Registered User Join Date: Aug 2005 Location: Cooksville,Illinois Posts: 3	79 chev c20 4x4 question Hi i am buying a 1979 chevy c20 4x4 and have a question. It had a 400 motor in it and still has the th400 in it. My question is with that engine and tranny combo does it have the np 205 t-case in it? Thanks Brian Midwestchopshop

08-23-2005, 02:35 AM	#5
1976K5CHALET Senior Member Join Date: Jan 2003 Location: Grand Junction, Colorado Posts: 610	79 was still full time 4wd time....as a general rule of thumb thats not allways correct....half and 3/4 tons came with 203's...1 tons allways got the dana 60 fronts and np205's. GM did a weirdo in 80....all K5's came with 205's....regardless across the board....before that usually a standard trans allways got the 205...but like i said there has been some weirdness out there such as one my friend in phx bought....79 1 ton crew cab...ex gov rez truck....straight 6/ th400/ np203... Easy way to figure it out without cleaning crud looking for the tag in the case is to look at the rear of the case....if there is a small metal plate with three bolts between the output shaft on the top and the case cover on the bottom you have a np205....and the most desirable stough version ava. For pics cruise over to offroaddesign.com....steve has a whole page over there with pics.... Doug W __________________ Doug Wright aka K5NUTT over @coloradok5.com Owner of http://groups.yahoo.com/group/ChevyK5BlazerChalets Certified K5 Nut

08-21-2005, 01:46 PM	#2
1FaastC10 Account Suspended Join Date: Oct 2002 Location: Elkhart, IN Posts: 6,399	it could have an NP203, or it could have an NP205. a C20 shouldnt have a transfer case at all though, C20s are 2wd. K20s are 4wd.

08-21-2005, 07:44 PM	#3
Midwestchopshop Registered User Join Date: Aug 2005 Location: Cooksville,Illinois Posts: 3	yeah i know i forgot that its a k20 im so use to having 2wd's. Thanks

08-21-2005, 08:58 PM	#4
magnethead 7000 #'s of american IRON Join Date: Dec 2004 Location: north tx Posts: 883	full time = 203 part time = 205. check the stick. one will have 2 WD and 4 WD, the other will have drive and neutral. something like that.



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