Question about 71 K10 - The 1947 - Present Chevrolet & GMC Truck Message Board Network

1969k10stepside · 11-15-2006, 07:47 PM

My swb K10 didnt have a transfer case in it when I got it.It had a sm465 tranny and a I-6 if that matters.I think it would have came with the np 205.Did the 71 K10's only have the np 205 or did they also have the rockwell T221 in them?My 69 has the rockwell but I thought I heard they didnt come with the rockwells after 69 or 70.Am I right?

Sorry if this isnt in the right section but I thought the knowledge of original equipment would be more here than the 4x4 section..

krue · 11-15-2006, 08:17 PM

My 72 k-5 with six/3 speed has the 203? tcase I think.

1969k10stepside · 11-15-2006, 08:18 PM

I think the 203 is for the trucks w/ out the lockouts.Maybe I do need to ask in the 4x4 section..I will wait and see if I get an answer.

krue · 11-15-2006, 08:27 PM

Is there a 202? I know it's NOT a 205, I've got one of those behind a TH350 for comparison.

1969k10stepside · 11-15-2006, 08:29 PM

There is a 208.They were in late 80's blazers.

mrein3 · 11-15-2006, 09:12 PM

To the best of my knowledge, only 205s were available in 71 and 72.
The 203 came shortly after that. Then the 208 after that.

In 71s and 72s I've personally seen a 205 behind a th400 (not original), a th350, a 4-speed manual (I know there are many different 4-speeds but I can't tell them apart), and a 3-speed manual.

I have only seen 203s in newer (1973+) trucks, and 208s in trucks newer than that.

A friend had a 203 in a 78 truck. On the freeway at 70 mph it decided to lock up. The front drive shaft came through the floor and landed in the seat next to him.

Another friend who shoes horses for a living has had many folks with 208s and other aluminum case transfer cases come to him with holes in the side of the case from a rock.

If you are looking for a transfer case, stick with a 205 behind the transmission you want. Make sure you get the transmission, adapter, and transfer case from a single donor. This will make your job much easier.

**chevy71super** · 11-15-2006, 09:19 PM

The manual trans also came with the 205 TC though I don't know if having an I6 makes any difference. I doubt it. The 208 did not come along until 73.

Rod · 11-15-2006, 11:32 PM

I would say a 205 in this application. Even my 70 GMC 3/4 4x4 six cylinder suburban uses a 205 T/C.

I've had a few 4x4 and last I see the Rockwells is in 1969 and mostly in the GMC in that year.

My 70 Blazer 6 cyl 4x4 has a Dana 20 and a 3 speed on column thats a standard tranny.

1969k10stepside · 11-15-2006, 11:52 PM

Well,I found a 208 out of a blazer for $150-I think I will pass on that.
I found a 203 but I dont want to put in the kit so it will work w/ lockouts
I have a sm465 bolted to a rockwell but I am wanting to keep them together for another truck.
I think I will just keep searching here,junkyards,and ebay for one and hope I find one cheap.I wont need it for awhile so I have some time to search.

Thanks for all the responses
Dustin

**Yukon Jack** · 11-16-2006, 03:40 PM

I agree with the above that 69 would be the last year you will find the Rockwell and the 203 would not have been available until after the 67-72 years.

skchevota · 11-16-2006, 04:09 PM

Yup, from 70-72 k10,k20,or blazer all used the NP205. ( thats a good thing)!

11-15-2006, 07:47 PM	#1
1969k10stepside Registered User Join Date: Mar 2006 Location: USA Posts: 21,019	Question about 71 K10 My swb K10 didnt have a transfer case in it when I got it.It had a sm465 tranny and a I-6 if that matters.I think it would have came with the np 205.Did the 71 K10's only have the np 205 or did they also have the rockwell T221 in them?My 69 has the rockwell but I thought I heard they didnt come with the rockwells after 69 or 70.Am I right? Sorry if this isnt in the right section but I thought the knowledge of original equipment would be more here than the 4x4 section.. Last edited by 1969k10stepside; 11-15-2006 at 07:50 PM.

11-15-2006, 08:17 PM	#2
krue Designated A-hole! Join Date: Mar 2003 Location: South Mississippi Posts: 36,448	Re: Question about 71 K10 My 72 k-5 with six/3 speed has the 203? tcase I think. __________________ "If it ain't broke, fix it 'til it is!" Being stupid ain't illegal. We're Still Debt Free Except for the House!!! www.daveramsey.com 70 GMC SWB Stepside project "Green Booger" soon to be 6.0l/4l80e 93 S-10 "Poppaw's Truck"

11-15-2006, 08:18 PM	#3
1969k10stepside Registered User Join Date: Mar 2006 Location: USA Posts: 21,019	Re: Question about 71 K10 I think the 203 is for the trucks w/ out the lockouts.Maybe I do need to ask in the 4x4 section..I will wait and see if I get an answer. Last edited by 1969k10stepside; 12-25-2007 at 09:33 AM.

11-15-2006, 08:27 PM	#4
krue Designated A-hole! Join Date: Mar 2003 Location: South Mississippi Posts: 36,448	Re: Question about 71 K10 Is there a 202? I know it's NOT a 205, I've got one of those behind a TH350 for comparison. __________________ "If it ain't broke, fix it 'til it is!" Being stupid ain't illegal. We're Still Debt Free Except for the House!!! www.daveramsey.com 70 GMC SWB Stepside project "Green Booger" soon to be 6.0l/4l80e 93 S-10 "Poppaw's Truck" Last edited by krue; 11-15-2006 at 08:27 PM.

11-15-2006, 08:29 PM	#5
1969k10stepside Registered User Join Date: Mar 2006 Location: USA Posts: 21,019	Re: Question about 71 K10 There is a 208.They were in late 80's blazers.

11-15-2006, 09:12 PM	#6
mrein3 Registered User Join Date: Feb 2000 Location: Center City, MN, USA Posts: 3,254	Re: Question about 71 K10 To the best of my knowledge, only 205s were available in 71 and 72. The 203 came shortly after that. Then the 208 after that. In 71s and 72s I've personally seen a 205 behind a th400 (not original), a th350, a 4-speed manual (I know there are many different 4-speeds but I can't tell them apart), and a 3-speed manual. I have only seen 203s in newer (1973+) trucks, and 208s in trucks newer than that. A friend had a 203 in a 78 truck. On the freeway at 70 mph it decided to lock up. The front drive shaft came through the floor and landed in the seat next to him. Another friend who shoes horses for a living has had many folks with 208s and other aluminum case transfer cases come to him with holes in the side of the case from a rock. If you are looking for a transfer case, stick with a 205 behind the transmission you want. Make sure you get the transmission, adapter, and transfer case from a single donor. This will make your job much easier. __________________ '70 cab, '71 chassis, 383, TH350, NP205. '71 Malibu convertible '72 Malibu hard top Center City, MN

11-15-2006, 09:19 PM	#7
chevy71super Registered User Join Date: Jan 2002 Location: So Cal Posts: 658	Re: Question about 71 K10 The manual trans also came with the 205 TC though I don't know if having an I6 makes any difference. I doubt it. The 208 did not come along until 73. __________________ 71 Cheyenne Super 4X4 SB 72 Cheyenne Super 4X4 SB 72 Cheyenne 4X4 SB

11-15-2006, 11:32 PM	#8
Rod Join Date: Dec 1999 Location: Eastern - Manitoba Canada, Winnipeg Posts: 4,369	Re: Question about 71 K10 I would say a 205 in this application. Even my 70 GMC 3/4 4x4 six cylinder suburban uses a 205 T/C. I've had a few 4x4 and last I see the Rockwells is in 1969 and mostly in the GMC in that year. My 70 Blazer 6 cyl 4x4 has a Dana 20 and a 3 speed on column thats a standard tranny. __________________ Senior active founding member. 70 3/4 ton GMC Suburban 4x4 250/4 spd. 71 1/2 ton Suburban Chevy 4x4, 350/350 72 Chev 1 ton tow truck 402BB w/Holmes 440 wrecker on propane 2005 FLSTSCI Harley Springer 85 FXSB Harley Lowrider 72 Triumph 650 Bonneville 5spd "Poor people don't have hobbies" Quote from wife.

11-15-2006, 11:52 PM	#9
1969k10stepside Registered User Join Date: Mar 2006 Location: USA Posts: 21,019	Re: Question about 71 K10 Well,I found a 208 out of a blazer for $150-I think I will pass on that. I found a 203 but I dont want to put in the kit so it will work w/ lockouts I have a sm465 bolted to a rockwell but I am wanting to keep them together for another truck. I think I will just keep searching here,junkyards,and ebay for one and hope I find one cheap.I wont need it for awhile so I have some time to search. Thanks for all the responses Dustin Last edited by 1969k10stepside; 11-15-2006 at 11:52 PM.

11-16-2006, 03:40 PM	#10
Yukon Jack Post Whore Join Date: Feb 2000 Location: Rose Hill, KS, USA Posts: 12,686	Re: Question about 71 K10 I agree with the above that 69 would be the last year you will find the Rockwell and the 203 would not have been available until after the 67-72 years. __________________ 1970 Blazer with a 400 sbc and 4" lift 1980 Pontiac Trans Am, 455 Oldsmobile 2012 Kawasaki Concours 14

11-16-2006, 04:09 PM	#11
skchevota Registered User Join Date: Oct 2006 Location: Evans, Colorado Posts: 530	Re: Question about 71 K10 Yup, from 70-72 k10,k20,or blazer all used the NP205. ( thats a good thing)!



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