Dual Leaf Springs - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Diablo de la Noche · 09-05-2009, 09:33 PM

On my 67 GMC Fleetside LB (6 bolt lugs), I have dual leaf springs. 9 on the bottom, a small block, and 4 on top. Was this an option, or did they all come this way? I can't seem to find any real info on this, yet.

mr48chev · 09-05-2009, 09:43 PM

It sounds like someone installed a set of overloads on it. Are they blue by chance?
Helwig has been selling helper springs for a long time although there are probably similar springs around made by others.
http://www.hellwigproducts.com/produ...oad_pro_series

They are/were popular with guys with campers.

If you don't intend to carry heavy loads you can take them off if you desire.

Diablo de la Noche · 09-05-2009, 10:07 PM

Here is a pic. They look like they belong there. So far I don't plan on taking them off.

mr48chev · 09-05-2009, 10:24 PM

Yep, overloads, you might have the heavy duty suspension. They let the truck carry more weight than the stock springs will handle. They help stabilize it when you have a load on or are towing a trailer with quite a bit of tongue weight too.

68gmsee · 09-05-2009, 11:21 PM

That's is some stout springs! What can a regular long bed haul that would require such heavy duty springs? I would think sprngs that heavy would be on a 1 ton or bigger. My swb GMC came with 8 leafs and I removed 3 of them.

Longhorn Man · 09-06-2009, 10:14 AM

that is a factory style G80 (if memory serves) spring pack.
It looks exactly like the optional overloads on my one ton longhorn.
Is it listed on the SPID? if not, I say someone added them.

Diablo de la Noche · 10-12-2009, 09:29 PM

Sorry, I forgot about this thread. The SPID is long gone. I really doubt any part of the truck belongs with the cab (and VIN). It is possible the frame and running gear are from another model. Someone told me it could be the towing package. It does have a hitch where the bumper should be. (again, I don't know if it was added. Dang PO.) It has 6 bolt lugs front and back. I'm going to leave the extra springs. Who knows, I might need to tow/haul something my daily driver can't handle. Like, maybe a large building or mountain.

It's like a puzzle, and I'm no cryptologist!

westofb · 10-12-2009, 11:36 PM

all half ton trucks from 67-70 had 6 lug wheels front and rear

Diablo de la Noche · 10-12-2009, 11:43 PM

Ok, so that part of the puzzle fits. 1/2 ton with huge springs! I'm cool with that.

Longhorn Man · 10-13-2009, 01:29 AM

and there was no such thing as a "tow package"

Diablo de la Noche · 10-13-2009, 01:36 AM

Dang. I guess I need to find some original litarature. I wish I had coil springs.

Longhorn Man · 10-13-2009, 01:58 AM

LOL... every truck on e bay with a $99 step bumper is claimed to have a tow package!

09-05-2009, 09:33 PM	#1
Diablo de la Noche Registered User Join Date: Jul 2009 Location: El Paso, Texas Posts: 142	Dual Leaf Springs On my 67 GMC Fleetside LB (6 bolt lugs), I have dual leaf springs. 9 on the bottom, a small block, and 4 on top. Was this an option, or did they all come this way? I can't seem to find any real info on this, yet.

09-05-2009, 09:43 PM	#2
mr48chev Registered User Join Date: Jul 2007 Location: Toppenish, WA Posts: 15,498	Re: Dual Leaf Springs It sounds like someone installed a set of overloads on it. Are they blue by chance? Helwig has been selling helper springs for a long time although there are probably similar springs around made by others. http://www.hellwigproducts.com/produ...oad_pro_series They are/were popular with guys with campers. If you don't intend to carry heavy loads you can take them off if you desire.

09-05-2009, 10:07 PM	#3
Diablo de la Noche Registered User Join Date: Jul 2009 Location: El Paso, Texas Posts: 142	Re: Dual Leaf Springs Here is a pic. They look like they belong there. So far I don't plan on taking them off. Attached Images

09-05-2009, 10:24 PM	#4
mr48chev Registered User Join Date: Jul 2007 Location: Toppenish, WA Posts: 15,498	Re: Dual Leaf Springs Yep, overloads, you might have the heavy duty suspension. They let the truck carry more weight than the stock springs will handle. They help stabilize it when you have a load on or are towing a trailer with quite a bit of tongue weight too.

09-05-2009, 11:21 PM	#5
68gmsee Active Member Join Date: Jul 2007 Location: Centrally located between Houston, Austin and Waco. BCS area. Posts: 7,947	Re: Dual Leaf Springs That's is some stout springs! What can a regular long bed haul that would require such heavy duty springs? I would think sprngs that heavy would be on a 1 ton or bigger. My swb GMC came with 8 leafs and I removed 3 of them.

09-06-2009, 10:14 AM	#6
Longhorn Man its all about the +6 inches Join Date: Jan 2001 Location: Hilliard Ohio Posts: 2,693	Re: Dual Leaf Springs that is a factory style G80 (if memory serves) spring pack. It looks exactly like the optional overloads on my one ton longhorn. Is it listed on the SPID? if not, I say someone added them.

10-12-2009, 09:29 PM	#7
Diablo de la Noche Registered User Join Date: Jul 2009 Location: El Paso, Texas Posts: 142	Re: Dual Leaf Springs Sorry, I forgot about this thread. The SPID is long gone. I really doubt any part of the truck belongs with the cab (and VIN). It is possible the frame and running gear are from another model. Someone told me it could be the towing package. It does have a hitch where the bumper should be. (again, I don't know if it was added. Dang PO.) It has 6 bolt lugs front and back. I'm going to leave the extra springs. Who knows, I might need to tow/haul something my daily driver can't handle. Like, maybe a large building or mountain. It's like a puzzle, and I'm no cryptologist! Last edited by Diablo de la Noche; 10-12-2009 at 09:31 PM.

10-12-2009, 11:36 PM	#8
westofb I really hate wet sanding! Join Date: Dec 2008 Location: Brookfield, MO Posts: 601	Re: Dual Leaf Springs all half ton trucks from 67-70 had 6 lug wheels front and rear

10-12-2009, 11:43 PM	#9
Diablo de la Noche Registered User Join Date: Jul 2009 Location: El Paso, Texas Posts: 142	Re: Dual Leaf Springs Ok, so that part of the puzzle fits. 1/2 ton with huge springs! I'm cool with that.

10-13-2009, 01:29 AM	#10
Longhorn Man its all about the +6 inches Join Date: Jan 2001 Location: Hilliard Ohio Posts: 2,693	Re: Dual Leaf Springs and there was no such thing as a "tow package"

10-13-2009, 01:36 AM	#11
Diablo de la Noche Registered User Join Date: Jul 2009 Location: El Paso, Texas Posts: 142	Re: Dual Leaf Springs Dang. I guess I need to find some original litarature. I wish I had coil springs.

10-13-2009, 01:58 AM	#12
Longhorn Man its all about the +6 inches Join Date: Jan 2001 Location: Hilliard Ohio Posts: 2,693	Re: Dual Leaf Springs LOL... every truck on e bay with a $99 step bumper is claimed to have a tow package!



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