Frame differences - The 1947 - Present Chevrolet & GMC Truck Message Board Network

sailed2japan · 11-28-2009, 08:15 AM

I was woundering if 60-66 trucks had 3 different frames for them like the 73-87 do. I know there are different ones for cab and chassis, too, but I'm just concerned with pick-up frames. I trying to figure out the best thin to hunt down if I ever get my crew cab build off the ground.

63 & 64 Bowties · 11-28-2009, 08:35 AM

The chassis that is under 60 thru 62 pickups is a beefy, x-boxed behemoth that had front torsion bars and ball joints that bolted to the ends of the a-arms. It also used a differential with a drop-out pumpkin.
In 1963, a ladder-style, c-channel chassis was introduced that featured modern-style stamped a-arms with pressed-in ball joints, front coils, and a twelve-bolt rearend.
The exact mounting locations for the cab and bed were changed for 63, but only require some re-drilling to properly fit if you are mix/matching across these model-year lines.

sailed2japan · 11-28-2009, 09:08 AM

Good info!
I guess I should have been more specific about exactly what I'm wanting to know. I plan on building off of the 63-66 type frame, but don't know if I should start with a c10, 20, or 30 chassis. I'm looking for something strong, but don't know how strong these frames are to begin with,. If a c10 is good enough I'm going to waste my time hunting down anything else.
Jonny

protrash64 · 11-28-2009, 10:06 AM

I believe the 1-ton trucks came with taller frame rails for the added loads they were expected to carry.

jonzcustomshop · 11-28-2009, 10:34 AM

I found a 1 ton frame that is a 133 inch wheelbase that I am going to use.

1Bad62Pro/Street · 11-28-2009, 10:51 AM

This is all the info I have right now.
Still researching to add all the info I can find on this thread.
If anyone like to help me on this they are more than welcome.

1960-66 Chevy/GMC Truck Frame Diagram
http://67-72chevytrucks.com/vboard/s...d.php?t=325736

sailed2japan · 11-28-2009, 11:38 PM

Sweet info, but I didn't see anything in ther about the thickness of the seel the rails are made of or the height of the rails. it looked to be all about were to put the brackets.

**Captainfab** · 11-29-2009, 01:32 AM

That is correct. I believe the steel may be slightly thicker also. Additionally the C30's came with leaf springs so consequently the frames are straight from the back of the cab rearward. In other words they don't have the flare outward where the coil springs are on a C10 or C20.

Quote:

Originally Posted by protrash64

I believe the 1-ton trucks came with taller frame rails for the added loads they were expected to carry.

sailed2japan · 12-13-2009, 05:13 PM

so would a c10 LWB and a c20 have the same frame?

62gmc910 · 12-13-2009, 05:31 PM

Quote:

Originally Posted by sailed2japan

so would a c10 LWB and a c20 have the same frame?

I think the C20s were thicker material but the same depth
The '73-87 suburban frame would be a lot better for your application the frame doesnt kick up under the cab like a pickup and I've been told that they are thicker material
BTW what are you building????

Oh guess if I read the thread?

**Captainfab** · 12-14-2009, 01:20 AM

Basically yes. Like 62gmc910 said, the material is slightly thicker on the C20. Also on the C20's there is a brace that goes from the trailing arm crossmember where the trailing arms attach, over to the frame rail.

Quote:

Originally Posted by sailed2japan

so would a c10 LWB and a c20 have the same frame?

11-28-2009, 08:15 AM	#1
sailed2japan Jonny Join Date: Apr 2008 Location: Outside the Box, Austin,TX Posts: 741	Frame differences I was woundering if 60-66 trucks had 3 different frames for them like the 73-87 do. I know there are different ones for cab and chassis, too, but I'm just concerned with pick-up frames. I trying to figure out the best thin to hunt down if I ever get my crew cab build off the ground. __________________ 1966 C30, Cummins, stacks, and a flat bed in progress... "Honor.....simply put, A veteran - whether active duty, retired, national guard or reserve is someone who, at one time in his life, wrote a blank check made payable to 'The United States of America', for an amount of 'up to and including his life.' That is Honor, and there are way too many people in this country who no longer understand it." -AEC Hundley USNR

11-28-2009, 08:35 AM	#2
63 & 64 Bowties and a few others Join Date: Jun 2007 Location: Blue Ridge Mountains of VA Posts: 5,638	Re: Frame differences The chassis that is under 60 thru 62 pickups is a beefy, x-boxed behemoth that had front torsion bars and ball joints that bolted to the ends of the a-arms. It also used a differential with a drop-out pumpkin. In 1963, a ladder-style, c-channel chassis was introduced that featured modern-style stamped a-arms with pressed-in ball joints, front coils, and a twelve-bolt rearend. The exact mounting locations for the cab and bed were changed for 63, but only require some re-drilling to properly fit if you are mix/matching across these model-year lines. __________________ Bill US Army Vet -193rd Infantry BlueRidgeMuscleCars.com “The greatness of a nation and its moral progress can be judged by the way its animals are treated” Gandhi

11-28-2009, 09:08 AM	#3
sailed2japan Jonny Join Date: Apr 2008 Location: Outside the Box, Austin,TX Posts: 741	Re: Frame differences Good info! I guess I should have been more specific about exactly what I'm wanting to know. I plan on building off of the 63-66 type frame, but don't know if I should start with a c10, 20, or 30 chassis. I'm looking for something strong, but don't know how strong these frames are to begin with,. If a c10 is good enough I'm going to waste my time hunting down anything else. Jonny __________________ 1966 C30, Cummins, stacks, and a flat bed in progress... "Honor.....simply put, A veteran - whether active duty, retired, national guard or reserve is someone who, at one time in his life, wrote a blank check made payable to 'The United States of America', for an amount of 'up to and including his life.' That is Honor, and there are way too many people in this country who no longer understand it." -AEC Hundley USNR

11-28-2009, 10:06 AM	#4
protrash64 Resistance is Futile Join Date: Dec 2006 Location: Mesa,Arizona Posts: 3,520	Re: Frame differences I believe the 1-ton trucks came with taller frame rails for the added loads they were expected to carry. __________________ 64 CHEVY PICK-UP > http://67-72chevytrucks.com/vboard/s...otrash+re-hash 64 CARRYALL >http://67-72chevytrucks.com/vboard/s...=1964+suburban 66 LB >http://67-72chevytrucks.com/vboard/s...d.php?t=427852 STRENGTH/DETERMINATION/MERCILESS/FOREVER .......posted via stationary device

11-28-2009, 10:34 AM	#5
jonzcustomshop 1961 crewcab Join Date: Dec 2007 Location: missoula, mt Posts: 6,164	Re: Frame differences I found a 1 ton frame that is a 133 inch wheelbase that I am going to use. __________________ 60 build: http://67-72chevytrucks.com/vboard/s...d.php?t=280904 61 crew build: http://67-72chevytrucks.com/vboard/s...d.php?t=646830 63 build: http://67-72chevytrucks.com/vboard/s...d.php?t=336537 64 'burb build: http://67-72chevytrucks.com/vboard/s...d.php?t=448681 65 'burb build: http://67-72chevytrucks.com/vboard/s...d.php?t=590715 65 build: http://67-72chevytrucks.com/vboard/s...d.php?t=281955

11-28-2009, 10:51 AM	#6
1Bad62Pro/Street "Where were you in '62?" Join Date: Jul 2004 Location: Cleveland County, North Cackalacky Posts: 5,013	Re: Frame differences This is all the info I have right now. Still researching to add all the info I can find on this thread. If anyone like to help me on this they are more than welcome. 1960-66 Chevy/GMC Truck Frame Diagram http://67-72chevytrucks.com/vboard/s...d.php?t=325736 __________________ PROJECT: "FULL METAL YELLOW JACKET" 1962 Chevy C-10 Stepside Shortbed Nostalgia Pro/Street Pickup Truck PROJECT: "FULL METAL YELLOW JACKET Build Thread What Are You Workin' On? - 1Bad62ChevyPickup PROJECT: "TYRANNORAMBLER REX" 1969 AMC Rambler American Nostalgia Pro/Street Youtube Channel: Father Son Projects Youtube Channel: 2TIMOTHY2FITHTEEN "North and South Carolina Folks Click Here!" (((( ~ I have Parts For Sale & Miscellaneous Stuff ~ )))) "Well being as there's no other place around the place, I reckon this must be the place, I reckon...Nyuk Nyuk Nyuk" -Curly Howard Ph.D.

11-28-2009, 11:38 PM	#7
sailed2japan Jonny Join Date: Apr 2008 Location: Outside the Box, Austin,TX Posts: 741	Re: Frame differences Sweet info, but I didn't see anything in ther about the thickness of the seel the rails are made of or the height of the rails. it looked to be all about were to put the brackets. __________________ 1966 C30, Cummins, stacks, and a flat bed in progress... "Honor.....simply put, A veteran - whether active duty, retired, national guard or reserve is someone who, at one time in his life, wrote a blank check made payable to 'The United States of America', for an amount of 'up to and including his life.' That is Honor, and there are way too many people in this country who no longer understand it." -AEC Hundley USNR

12-13-2009, 05:13 PM	#9
sailed2japan Jonny Join Date: Apr 2008 Location: Outside the Box, Austin,TX Posts: 741	Re: Frame differences so would a c10 LWB and a c20 have the same frame? __________________ 1966 C30, Cummins, stacks, and a flat bed in progress... "Honor.....simply put, A veteran - whether active duty, retired, national guard or reserve is someone who, at one time in his life, wrote a blank check made payable to 'The United States of America', for an amount of 'up to and including his life.' That is Honor, and there are way too many people in this country who no longer understand it." -AEC Hundley USNR



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