I'm new to the 60-66, whats the major differences compared to a 67-72 - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Gyva · 04-24-2005, 07:31 PM

I'm the new owner of one of these, actual year I dunno. I know its a c20 and I got it for $200.00 its got the 350 ending in 0010 but that will come out inplace of a newer 350... its a 2 wheel drive. I just bought it to haul around engine parts and so forth. its got a 4 speed in it, are these 4 speeds the same as 67-72 ones... hope to have her on the road in the next few months. Just gotta make space to work on her... thanks guys..

Mike

chevy283 · 04-24-2005, 09:49 PM

the body style.I think the trans is the same.

Gyva · 04-25-2005, 12:23 AM

ya I believe so too, I just wanted reasurance. I'll get some pics of it when I get her here... I think there was a chrome strip around the cab that said custom delux if I'm not mistaken... anyway she'll get pleanty of parts home for me after she gets a new heart....

Mike...

littlee_domn8r · 04-25-2005, 12:25 AM

I'm not sure on the differences other than the body. I'll have to defer to someone with more knowledge. But Welcome!

I1502 · 04-25-2005, 07:43 AM

Sounds like you got the same basic 3/4 (C20) ton truck and idea that I have in mind with my 66 GMC...and you bought it for the same price I paid!
If the 4 speed has a obvious "hump" on the right side of the case it's most likely a SM 420. Good strong trans, I've been told.
I don't want to sink a lot of cash into my truck, just use it to haul trash/ parts and the occasional car trailer to move one of my other projects.
Since my truck sat for years the brakes are bad, and if it is an easy bolt-in of junkyard parts, I'd like to put later front disks on 'er.
Best of luck with the project!

bpmcgee · 04-25-2005, 10:56 AM

60-66 will have drum brakes all around, starting in '71 it went to front disc/rear drum.

60-66 early years will have an SM420. Sometime before '71 they changed to the SM465. Both really durable 4-speeds.

60-61 will have torsion bar front end. Beyond that, normal independent front. Torsion bars were supposed to ride better, but were more expensive.

60-66 will have GENERATORS. 67-up switched to alternators.

That's all I can think of at the moment.

Oh, the frames are pretty similar, but I think the 60-66 is x'ed in the middle, giving it greater strength.

Brian

chevy283 · 04-25-2005, 11:55 AM

the 60-66 are just cooler. lol

bdeese · 04-25-2005, 12:27 PM

Quote:

Originally Posted by chevy283

the 60-66 are just cooler. lol

I'd have to agree with that, but I think we're outnumbered here.

kamikazegmc · 04-26-2005, 10:09 PM

60-61 will have torsion bar front end. Beyond that, normal independent front. Torsion bars were supposed to ride better, but were more expensive.

it was from 60-62.

**ScottH** · 04-27-2005, 01:59 PM

Can anyone tell me what size V6 was in a 66 C20?

Thanks.

kamikazegmc · 04-27-2005, 02:09 PM

most likely a 305e, but maybe a 351. check out http://www.6066gmctrucks.org/ it has great info on the big v6.

**ScottH** · 04-27-2005, 02:36 PM

Excellent site, thanks kamikazegmc!

Gyva · 04-28-2005, 08:51 PM

Thanks for all the info guys!!!! I'll get some pictures soon. X'ed frame??? I'll have to check that out.

04-24-2005, 07:31 PM	#1
Gyva Registered User Join Date: Jan 2005 Location: Mountain Home Idaho Posts: 544	I'm new to the 60-66, whats the major differences compared to a 67-72 I'm the new owner of one of these, actual year I dunno. I know its a c20 and I got it for $200.00 its got the 350 ending in 0010 but that will come out inplace of a newer 350... its a 2 wheel drive. I just bought it to haul around engine parts and so forth. its got a 4 speed in it, are these 4 speeds the same as 67-72 ones... hope to have her on the road in the next few months. Just gotta make space to work on her... thanks guys.. Mike

04-25-2005, 12:25 AM	#4
littlee_domn8r AKA "Hurricane Hank" Join Date: Sep 2003 Location: Elk Point, South Dakota Posts: 316	I'm not sure on the differences other than the body. I'll have to defer to someone with more knowledge. But Welcome! __________________ "looking back, knowing that you gave it your all.... win or lose, you finish a Champion" Dale Earnhardt "They say hard work never killed anyone, But why take a chance? 63 GMC C10 Custom LWB 355/350 AT 00 Chevy Silverado 1500 base V6/AT 07 Chevy Monte Carlo SS 5.3 V8

04-25-2005, 10:56 AM	#6
bpmcgee Registered User Join Date: Mar 2003 Location: Northern Illinois Posts: 2,181	60-66 will have drum brakes all around, starting in '71 it went to front disc/rear drum. 60-66 early years will have an SM420. Sometime before '71 they changed to the SM465. Both really durable 4-speeds. 60-61 will have torsion bar front end. Beyond that, normal independent front. Torsion bars were supposed to ride better, but were more expensive. 60-66 will have GENERATORS. 67-up switched to alternators. That's all I can think of at the moment. Oh, the frames are pretty similar, but I think the 60-66 is x'ed in the middle, giving it greater strength. Brian Last edited by bpmcgee; 04-25-2005 at 10:57 AM.

04-26-2005, 10:09 PM	#9
kamikazegmc Registered Smarta$$ Join Date: Mar 2004 Location: vancouver, wa Posts: 214	60-61 will have torsion bar front end. Beyond that, normal independent front. Torsion bars were supposed to ride better, but were more expensive. it was from 60-62. __________________ 63 GMC custom going to be slammed

04-27-2005, 02:09 PM	#11
kamikazegmc Registered Smarta$$ Join Date: Mar 2004 Location: vancouver, wa Posts: 214	most likely a 305e, but maybe a 351. check out http://www.6066gmctrucks.org/ it has great info on the big v6. __________________ 63 GMC custom going to be slammed

04-24-2005, 09:49 PM	#2
chevy283 Registered User Join Date: Dec 2004 Location: wilson oklahoma Posts: 367	the body style.I think the trans is the same.

04-25-2005, 12:23 AM	#3
Gyva Registered User Join Date: Jan 2005 Location: Mountain Home Idaho Posts: 544	ya I believe so too, I just wanted reasurance. I'll get some pics of it when I get her here... I think there was a chrome strip around the cab that said custom delux if I'm not mistaken... anyway she'll get pleanty of parts home for me after she gets a new heart.... Mike...

04-25-2005, 07:43 AM	#5
I1502 Registered User Join Date: Mar 2005 Location: Socal, CA Posts: 25	Sounds like you got the same basic 3/4 (C20) ton truck and idea that I have in mind with my 66 GMC...and you bought it for the same price I paid! If the 4 speed has a obvious "hump" on the right side of the case it's most likely a SM 420. Good strong trans, I've been told. I don't want to sink a lot of cash into my truck, just use it to haul trash/ parts and the occasional car trailer to move one of my other projects. Since my truck sat for years the brakes are bad, and if it is an easy bolt-in of junkyard parts, I'd like to put later front disks on 'er. Best of luck with the project!

04-25-2005, 11:55 AM	#7
chevy283 Registered User Join Date: Dec 2004 Location: wilson oklahoma Posts: 367	the 60-66 are just cooler. lol

04-27-2005, 01:59 PM	#10
ScottH Senior Member Join Date: Sep 2002 Location: Hampstead, NC Posts: 8,190	Can anyone tell me what size V6 was in a 66 C20? Thanks.

04-27-2005, 02:36 PM	#12
ScottH Senior Member Join Date: Sep 2002 Location: Hampstead, NC Posts: 8,190	Excellent site, thanks kamikazegmc!

04-28-2005, 08:51 PM	#13
Gyva Registered User Join Date: Jan 2005 Location: Mountain Home Idaho Posts: 544	Thanks for all the info guys!!!! I'll get some pictures soon. X'ed frame??? I'll have to check that out.



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