The 1947 - Present Chevrolet & GMC Truck Message Board Network

Register or Log In To remove these advertisements.

Go Back   The 1947 - Present Chevrolet & GMC Truck Message Board Network > 47 - Current classic GM Trucks > The 1960 - 1966 Chevrolet & GMC Pickups Message Board


Thread Tools Display Modes
Old 02-08-2012, 12:42 PM   #1
But Found Her 25yrs Later!
LostMy65's Avatar
Join Date: Oct 2010
Location: Oregon City, Oregon
Posts: 4,982
X-Frame - good or bad?

So, I've been searching...


I see some cut out the 'X'. some leave it.

Is the 'X-Frame' good or bad?
I lost my 65 - Found it 25 years later:

66 Service truck build:
LostMy65 is offline   Reply With Quote
Old 02-08-2012, 01:07 PM   #2
Who Me?
61_FL_Apache's Avatar
Join Date: Sep 2010
Location: Royal Palm Beach, FL
Posts: 2,519
Re: X-Frame - good or bad?

I have had both. I would prefer with out. My 65 was easy to work on with out that in the way. But the 61 has given me a place to mount the bags in the rear. I have them where the X meets the rest of the frame and that worked perfect.

Also with the X you will have tortion suspension in the front. That also adds another crossmember where the adjustments are. I had a little tough time getting my tranny out with that in the way.
1961 Chevy Apache 10 ~ 305 V8/TH350 (Daily Driver)
1997 Chevy Tahoe LT ~ (my other ride)
1999 Chevy S-10 Ext-cab ~ (daughters ride)
2000 Chevy Camaro SS Clone ~ (other daughters ride)
2005 Chevy Venture ~ (wifes ride)
1991 Winnebago powered by a 454 ~
(Family camping ride)

My 61's build thread

My 97 Tahoe build thread<br />
61_FL_Apache is offline   Reply With Quote
Old 02-08-2012, 02:56 PM   #3
Senior Enthusiast
markeb01's Avatar
Join Date: Feb 2007
Location: Spokane Valley, WA
Posts: 7,432
Re: X-Frame - good or bad?

If I ever saw a 60-66 frame with no X in the center I would just assume it’s a 63-66 chassis. The stock 60-62 frame is basically what old school convertible cars received. Many passenger cars used a typical perimeter frame with straight across crossmembers (similar to a 63-72 truck chassis), while the convertibles received the huge reinforcing X to make up for the loss of body strength when the roof was removed.

From a barnyard engineering standpoint it would seem IMHO the 60-62 X frame is far stronger than the comparatively flimsy construction of the 63-72 chassis. GM propaganda at the time claimed the new chassis was in fact stronger (and certainly much lighter), because the frame rails were now tempered steel. I’m not sure I accept that argument as valid, since I’ve seen many perimeter frames bend under the weight of a heavy cab over camper, and I’ve never seen a 60-62 frame allow any deflection at all unless damaged in a wreck.

It would seem removing the full X support from a 60-62 frame would be dangerous, since the side rails are shorter in vertical height than 63-72 frames, are supposedly not tempered, and were not engineered for the absence of this critical component.

If you replace the original torsion bar front suspension crossmember with the later coil spring version, the small anchor crossmember at the rear of the torsion bars can also be unbolted and removed.

If your question is would it be okay to slice out the X member from a 60-62 frame to approximate the open space and convenience of a 63-72 frame, I would recommend swapping to the entire later chassis instead.
markeb01 is offline   Reply With Quote
Old 02-08-2012, 03:06 PM   #4
But Found Her 25yrs Later!
LostMy65's Avatar
Join Date: Oct 2010
Location: Oregon City, Oregon
Posts: 4,982
Re: X-Frame - good or bad?

I plan on keeping it because all the upgrades the previous owner did to the front and rear suspension. It's just I have read of members either cutting out the x or swapping out to the 63-66 frame.
I just wanted to know what the big negative was about the x frame. I do think the torsions make for a nice ride. My 65 with the 62 frame rides like a car.
Posted via Mobile Device
I lost my 65 - Found it 25 years later:

66 Service truck build:
LostMy65 is offline   Reply With Quote
Old 02-08-2012, 03:47 PM   #5
Senior Enthusiast
markeb01's Avatar
Join Date: Feb 2007
Location: Spokane Valley, WA
Posts: 7,432
Re: X-Frame - good or bad?

The biggest drawback to the 60-62 frame is that compared to the 63-72 chassis, the aftermarket provides almost no support. This includes suspension components, engine mounts, transmission crossmembers, gas tanks, brakes, rear axle kits, etc. In the last few years some brake kits and spindles have come on the market, but before that almost nothing was offered for the 60-62's.
markeb01 is offline   Reply With Quote
Old 02-08-2012, 03:50 PM   #6
"Where were you in '62?"
1Bad62Pro/Street's Avatar
Join Date: Jul 2004
Location: Cleveland County, North Cackalacky
Posts: 4,753
Thumbs up Re: X-Frame - good or bad?

Frame Schematic:

The half-ton and 3/4-ton cab models utilized a, drop-center, X-type frame assembly between 1960-1962. This construction was necessary to beef up the frame because of the new four-wheel independent suspension system, especially for the front torsion bars. The new frame construction coupled with the new cab styling, which was 3.88-inches lower than the previous cab, reduced overall vehicle height by up to seven inches. Wheelbase length for the half-ton was increased by one inch to 115 inches and on the the 3/4-ton by 3 3/4-inches to 127 inches, but the one-ton was decreased by 2 inches to 133 inches.

I have never was a fan the torsion bar front suspension, but I am a big fan of Mustang II IFS. Most guys do this on thier Hot Rods, Street Rods, Cars and Trucks.
The most common 3 are -Mustang II IFS - Camaro - Nova Stub Frames.
In my application with the Mustang II IFS Clip I lost a lot of weight removing the torsion bar front suspension. Gained disk brakes and gained better ride quality and handling characteristics. If anyone chooses to go with this route you have to make sure the geometry is right. Now my truck had alot of bump steer in it that I had to take care of as you see in a couple of my videos. I also have 2" Drop Spindles on her too.. Now it looks like I will need to raise it 1/2" inch or an inch after I have been driving it a while. Already adjusted the rear coilovers to adjust for the weight of the bed.
My father and I cut out the X out mainly so we can put the cross member for the TH350. When we got rid of it we had to Box and Relieve the frame to make it strong.

Build Thread:

Pics of frame back in the day of the Frame.

Heavy Duty Mustang II Independent Front Suspension crossover kits
M26062CT 1960-62 Chevy Trucks $439.99
1962 Chevy C-10 Stepside Shortbed Nostalgia Pro/Street Pickup Truck
What Are You Workin' On? - 1Bad62ChevyPickup
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.
1Bad62Pro/Street is offline   Reply With Quote
Old 02-09-2012, 09:03 AM   #7
Registered User
Join Date: Aug 2010
Location: Keller TX
Posts: 794
Re: X-Frame - good or bad?

One thing is the X frame is wider than the later versions.. ASK me how I know. Funny stuff. Mine came from there factory with coil overs as far as I can tell, number wise and looking for items that would show where the t bars had been removed. Could never find any thing that showed it was a torsion to start with.

After market stuff can get spendy and I am thank ful that many others did the leg work and trial and error on finding out what parts would work. No way would I ever pay for parts from a online place when you can go to a salavage yard and get them for 70% less money and have OEM parts.

I bought all of my new a arms steering box, linkage, rotors calipers etc for under 200 bucks. I was picky and was able to find a set of rotors that where new with very little wear, same for the calipers ( they where on the same truck) I found another truck that had a rebuilt ( looked new) power steering box, another had all new drag link idler arm and inner tie rods... Sure it took me all day but the only parts I bought new for my front end where the a arm bushings and the dropped spindels from CCP and 1 inch lower springs. I relocated the upper stock shock mounts back to keep them aligned..
Attached Images

Last edited by GMR-PERFORMANCE; 02-22-2012 at 03:53 PM.
GMR-PERFORMANCE is offline   Reply With Quote


Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

All times are GMT -5. The time now is 04:49 AM.

Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
Copyright 1997-2013