traditional hotrod - Page 2 - The 1947 - Present Chevrolet & GMC Truck Message Board Network

ruffrida2005 · 07-13-2009, 10:55 PM

me too thanks for the info. But isn't the frame the same from 63-87 except for the frame horns on 63-66 are diffrent. And the body mounts are diffrent from the years. Just needing to be informed some more!

PBFAB.COM · 07-13-2009, 11:02 PM

Quote:

Originally Posted by ruffrida2005

me too thanks for the info. But isn't the frame the same from 63-87 except for the frame horns on 63-66 are diffrent. And the body mounts are diffrent from the years. Just needing to be informed some more!

The 63-72 frame-rails are pretty close to the same. The main differences, as you have stated are the front horns, and the body mounts. However, the 73-87 frame-rails are not the same. The main difference being the frame-rail height (of course, body mounts as well).

PBFAB.COM · 07-13-2009, 11:05 PM

Wasn't channeling the body a pretty popular thing back in the 60's?

That might be another "old skool" option.

**N2TRUX** · 07-13-2009, 11:08 PM

The frames are similiar enough in the front suspension area that the crossmembers will bolt in. The 63-67 frames do not have the "flair" in it to accomodate a power steering gear box as power steering was not available. The exception being power "assist" steering.

The back half of the frame is where things are different. Let me see if I can remember the changes.

61-66 was trailing arm only, 67-72 was trailing arm "or" leaf spring which as mentioned, Chevy was standard coil optional leaf, and vice-versa on GMC.

Ok guys, how bad did I screw that up?

ruffrida2005 · 07-14-2009, 04:19 PM

thanks for the info guys!

Iforgotmypassword · 07-14-2009, 06:28 PM

My 67 is coil, just thought they all were. Lots of interesting ideas to lower the truck. Channeling was something I considered, but I will already lose some headroom with the chop. I guess I will have to decide what makes the most sense.
My cab is off in the shop, and my frame is knee deep in poison ivy. Can someone tell me how much drop I need to get 6" clearance at the bottom of the rocker?Thanks.

Frizzle Fry · 07-14-2009, 09:24 PM

Quote:

Originally Posted by XXL

Leafs were standard, but coils could be bought optionally... just the opposite of Chevy. Not sure why other than market differentiation (??)

This is an old wives tale from what I can tell. I have heard it many times but never seen any proof of it. Neither GMC's nor Chevys list either as an option on the SPID. I have seen plenty of Chevys with leafs and GMCs with coils. I think it "sounds logical" so people just roll with it.

Quote:

Originally Posted by N2TRUX

61-66 was trailing arm only, 67-72 was trailing arm "or" leaf spring which as mentioned, Chevy was standard coil optional leaf, and vice-versa on GMC.

Ok guys, how bad did I screw that up?

60-66 could be had with coil or leaf. See above for GMC/Chevy Coil/Leaf

*Shane* · 07-14-2009, 09:48 PM

I heard way-back-when that the difference in the coil on GMC / leaf on Chevy was not an option but actually dictated by where the truck was assembled.

joe231 · 07-14-2009, 10:17 PM

it will probably remain a secret unless we can find someone who worked for gm back when

XXL · 07-14-2009, 10:42 PM

Quote:

Originally Posted by Frizzle Fry

Neither GMC's nor Chevys list either as an option on the SPID. I have seen plenty of Chevys with leafs and GMCs with coils.

So neither are listed as options, yet we know both exist. The info I has suggests the following option for Chevy C10...

Quote:

G50 Rear Leaf. Capacity 1750-lb each, 2 stage. $7.00 Mfr suggested delivered price.

And for the record, my wife did not tell me any of this.

**N2TRUX** · 07-14-2009, 10:46 PM

Kinda of like the mystery of the under hood paint..black or body color...?

joe231 · 07-14-2009, 10:55 PM

Frizzle Fry · 07-15-2009, 01:02 AM

Quote:

Originally Posted by XXL

So neither are listed as options, yet we know both exist. The info I has suggests the following option for Chevy C10...

And for the record, my wife did not tell me any of this.

Only old wives posses such knowledge

Sounds like the G50 leafs were a higher capacity option??? and was G50 and option for GMC?

ruffrida2005 · 07-15-2009, 12:20 PM

Their is a guy on the board that worked for GM on our trucks in the engineer department. I'll try if I can find him. He works on the Volt now!

Spray-Bomb · 07-15-2009, 01:12 PM

Could also drop the body mounts & body drop it

joe231 · 07-15-2009, 01:19 PM

using the newer frame?

dunno on a '67, but Strodder on the 60-66 side is putting a 64-65-66 cab on a 80-something cab, he had to cut and channel the floor of the cab to get it to sit low enough to use the factory located mounts.

Spray-Bomb · 07-16-2009, 11:21 PM

I meant with the 67 frame

There is no reason to go with the 78 frame

joe231 · 07-16-2009, 11:52 PM

ah, now it all makes sense

07-13-2009, 10:55 PM	#26
ruffrida2005 Member of the longbed union. Join Date: Feb 2009 Location: Killeen, Tx Posts: 2,158	Re: traditional hotrod me too thanks for the info. But isn't the frame the same from 63-87 except for the frame horns on 63-66 are diffrent. And the body mounts are diffrent from the years. Just needing to be informed some more! __________________ Paul 88 GMC Crew Cab dually, 454/T400 64 LWB 400 HP 350/350T Bagged, under construction! Sold most of it! 92 S10 Iron Duke 5 speed, 5/7 drop for now. soon to be bagged. Sold http://67-72chevytrucks.com/vboard/s...59#post4637759

07-13-2009, 11:05 PM	#28
PBFAB.COM Senior Member Join Date: Dec 2003 Location: Mesa,Az Posts: 3,981	Re: traditional hotrod Wasn't channeling the body a pretty popular thing back in the 60's? That might be another "old skool" option. __________________ www.PorterbuiltFabrication.com Phone: 480-297-2621 E-mail: sales@pbfab.com Find us on FaceBook under Porterbuilt Fabrication Specializing in Chassis and Suspension Components for your Classic Chevrolet Truck. We offer components from the following manufacturers: Porterbuilt Accuair Ridetech (Air Ride Technologies) Air Lift Wilwood Intro Unisteer ECE Gotta Show Air Lift Borgeson CPP Supporting this forum since 2003!

07-13-2009, 11:08 PM	#29
N2TRUX Happy to be here Join Date: Mar 2000 Location: Cypress, TX Posts: 39,021	Re: traditional hotrod The frames are similiar enough in the front suspension area that the crossmembers will bolt in. The 63-67 frames do not have the "flair" in it to accomodate a power steering gear box as power steering was not available. The exception being power "assist" steering. The back half of the frame is where things are different. Let me see if I can remember the changes. 61-66 was trailing arm only, 67-72 was trailing arm "or" leaf spring which as mentioned, Chevy was standard coil optional leaf, and vice-versa on GMC. Ok guys, how bad did I screw that up? __________________ Follow me on Facebook and Instagram @N2trux.com Articles- "Jake" the 84 to 74 crewcab "Elwood" the77_Remix 85 GMC Sierra "Scarlett" "Refining Sierra"

07-14-2009, 04:19 PM	#30
ruffrida2005 Member of the longbed union. Join Date: Feb 2009 Location: Killeen, Tx Posts: 2,158	Re: traditional hotrod thanks for the info guys! __________________ Paul 88 GMC Crew Cab dually, 454/T400 64 LWB 400 HP 350/350T Bagged, under construction! Sold most of it! 92 S10 Iron Duke 5 speed, 5/7 drop for now. soon to be bagged. Sold http://67-72chevytrucks.com/vboard/s...59#post4637759

07-14-2009, 06:28 PM	#31
Iforgotmypassword Registered User Join Date: Oct 2004 Location: Republic of Western Canada Posts: 18	Re: traditional hotrod My 67 is coil, just thought they all were. Lots of interesting ideas to lower the truck. Channeling was something I considered, but I will already lose some headroom with the chop. I guess I will have to decide what makes the most sense. My cab is off in the shop, and my frame is knee deep in poison ivy. Can someone tell me how much drop I need to get 6" clearance at the bottom of the rocker?Thanks.

07-14-2009, 09:48 PM	#33
Shane Account Suspended Join Date: Jun 2000 Location: over yonder Posts: 14,270	Re: traditional hotrod I heard way-back-when that the difference in the coil on GMC / leaf on Chevy was not an option but actually dictated by where the truck was assembled.

07-14-2009, 10:17 PM	#34
joe231 Registered User Join Date: Dec 2007 Location: Palmer, Alaska Posts: 13,821	Re: traditional hotrod it will probably remain a secret unless we can find someone who worked for gm back when __________________ *CHEVY ONLY*

07-14-2009, 10:46 PM	#36
N2TRUX Happy to be here Join Date: Mar 2000 Location: Cypress, TX Posts: 39,021	Re: traditional hotrod Kinda of like the mystery of the under hood paint..black or body color...? __________________ Follow me on Facebook and Instagram @N2trux.com Articles- "Jake" the 84 to 74 crewcab "Elwood" the77_Remix 85 GMC Sierra "Scarlett" "Refining Sierra"

07-14-2009, 10:55 PM	#37
joe231 Registered User Join Date: Dec 2007 Location: Palmer, Alaska Posts: 13,821	Re: traditional hotrod __________________ *CHEVY ONLY*

07-15-2009, 12:20 PM	#39
ruffrida2005 Member of the longbed union. Join Date: Feb 2009 Location: Killeen, Tx Posts: 2,158	Re: traditional hotrod Their is a guy on the board that worked for GM on our trucks in the engineer department. I'll try if I can find him. He works on the Volt now! __________________ Paul 88 GMC Crew Cab dually, 454/T400 64 LWB 400 HP 350/350T Bagged, under construction! Sold most of it! 92 S10 Iron Duke 5 speed, 5/7 drop for now. soon to be bagged. Sold http://67-72chevytrucks.com/vboard/s...59#post4637759

07-15-2009, 01:12 PM	#40
Spray-Bomb Texas Big Wig Join Date: Jan 2007 Location: Mineola, Texas Posts: 5,620	Re: traditional hotrod Could also drop the body mounts & body drop it __________________ Just not low enough... ----------------------------- Sinister Killer

07-15-2009, 01:19 PM	#41
joe231 Registered User Join Date: Dec 2007 Location: Palmer, Alaska Posts: 13,821	Re: traditional hotrod using the newer frame? dunno on a '67, but Strodder on the 60-66 side is putting a 64-65-66 cab on a 80-something cab, he had to cut and channel the floor of the cab to get it to sit low enough to use the factory located mounts. __________________ *CHEVY ONLY*

07-16-2009, 11:21 PM	#42
Spray-Bomb Texas Big Wig Join Date: Jan 2007 Location: Mineola, Texas Posts: 5,620	Re: traditional hotrod I meant with the 67 frame There is no reason to go with the 78 frame __________________ Just not low enough... ----------------------------- Sinister Killer

07-16-2009, 11:52 PM	#43
joe231 Registered User Join Date: Dec 2007 Location: Palmer, Alaska Posts: 13,821	Re: traditional hotrod ah, now it all makes sense __________________ *CHEVY ONLY*

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