1966 chevy truck overload springs - The 1947 - Present Chevrolet & GMC Truck Message Board Network

1966chevytrucks · 07-03-2011, 12:14 AM

Has anyone seen overloads on a 1966 c10? Im picking them up from the guy just bc i haven't seen them before and they just look cool. They mount to the frame and push against the trailing arms.

smallblock kid · 07-03-2011, 12:44 AM

they are a factory option as far as ive been told and they were on my c10 when i bought it and i think they help out with the squat but def dont hold a huge load we loaded my pickup with 64 bags of 50lb bags of seed and ya it bottomed out we ended up with 50ish bags on it and it still was squating im sure with just the factory springs that wouldnt have been possible

willyp · 07-03-2011, 01:03 PM

i took them off my 66 truck and gave them to my neighbor. they would not work with the ECE 6 inch drop.

1968vetL-71 · 07-03-2011, 01:13 PM

These were on the 66 frame I cut up for my crew cab. They mount all the way down under the trailing arms also. I still have the complete assembly including hardware.

**TR65** · 07-03-2011, 04:11 PM

I took them off of my truck recently. The ride was greatly improved!! The darn things engage when going over speed bumps, bumps in the road, uneven pavement and were brutal.

TR

Shaky · 07-03-2011, 05:40 PM

Quote:

Originally Posted by TR65

I took them off of my truck recently. The ride was greatly improved!! The darn things engage when going over speed bumps, bumps in the road, uneven pavement and were brutal.

TR

This.

When you're running light and you hit a bump, you have the nice coil-spring spring rate for the first half of the way down.

Then you hit the overloads, and your spring rate instantly doubles or triples.

They're great if you're working on the farm, otherwise - not so much.

63sbssbbw · 07-04-2011, 08:04 AM

I have those on my '63 GMC I'm doing
Will leave them there for now,we'll see
T

padresag · 07-04-2011, 09:49 AM

Quote:

Originally Posted by smallblock kid

they are a factory option as far as ive been told and they were on my c10 when i bought it and i think they help out with the squat but def dont hold a huge load we loaded my pickup with 64 bags of 50lb bags of seed and ya it bottomed out we ended up with 50ish bags on it and it still was squating im sure with just the factory springs that wouldnt have been possible

that is only 3200lbs; I wonder why it did that
ron

1966chevytrucks · 07-04-2011, 02:26 PM

I guess mine are aftermarket bc they are u bolted to the frame not on a riveted mount.

collins10672 · 07-06-2011, 01:24 AM

these are original to these trucks.most people do take them off and throw them away for a better ride.on the 1966 trucks on the spid they are called "auxilliary rear spring equ."they were an option.

iehotrod · 07-06-2011, 01:47 AM

I have those in my 62 shorty and I think I rather have them on then off. I think they also help with cornering kinda like a sway bar would do to some extend that is. Correct me if I am wrong in my theory. Also mine are the u-bolt type must be after market.

1966chevytrucks · 07-06-2011, 10:35 AM

I might take them apart and remove one spring to lighten them just a touch and give it a little more travel before they come in to play.

61_FL_Apache · 07-06-2011, 11:26 AM

I had the mounts on my 65 but no springs.

iehotrod · 07-06-2011, 12:36 PM

1966chevytrucks- I believe thats the way to go.

badblu97 · 07-06-2011, 02:30 PM

I have these on my 66 as well, they were ordered from the factory because the PO (original owner, I might add) had a camper on her. Im taking them off to get her in the weeds!!

**LostMy65** · 05-06-2016, 10:53 AM

Saw these on a 3/4 ton frame yesterday.

Here's an older thread:
http://67-72chevytrucks.com/vboard/s...light=overload

Metalaroundstone · 05-07-2016, 04:21 PM

Here is another informative thread on several types of overload springs. I added a set of original equipment overloads to my c10 and they significantly added to its carrying capacity. As I understand it, each spring adds 500 lbs of load capacity I have never noticed them altering the ride when I was driving without a load, but my truck has not been lowered.

Opinions about original helper springs
http://67-72chevytrucks.com/vboard/s...d.php?t=600642

**jocko** · 05-07-2016, 06:22 PM

Overloads were mando equipment on a Custom Camper, optional on others. If not hauling or towing, probably just as well to remove all or some leafs if not happy with the ride. Lostmy65, what are you speaking to in the frame pic? I see no overloads, only a bump stop - or am I missing the point of the pic? Thanks.

**LostMy65** · 05-07-2016, 06:53 PM

Yeah, just the bumpstop plate on the trailing arm base.
Saw it on a frame out in the wild.
Thought I'd snap a pic and post it.

07-03-2011, 12:14 AM	#1
1966chevytrucks Registered User Join Date: Jun 2011 Location: benld il Posts: 43	1966 chevy truck overload springs Has anyone seen overloads on a 1966 c10? Im picking them up from the guy just bc i haven't seen them before and they just look cool. They mount to the frame and push against the trailing arms.

07-03-2011, 12:44 AM	#2
smallblock kid Registered User Join Date: Jun 2009 Location: KS Posts: 107	Re: 1966 chevy truck overload springs they are a factory option as far as ive been told and they were on my c10 when i bought it and i think they help out with the squat but def dont hold a huge load we loaded my pickup with 64 bags of 50lb bags of seed and ya it bottomed out we ended up with 50ish bags on it and it still was squating im sure with just the factory springs that wouldnt have been possible __________________ 1966 chevy 1/2 ton freshly rebuilt 350 stock cam performer intake 600 cfm edelbrock 4spd behind it 1986 chevy 4x4 1/2 ton 350 700r4/208 2in lift blocks 31 at tires

07-03-2011, 01:03 PM	#3
willyp Registered User Join Date: Nov 2008 Location: Houston TX Posts: 362	Re: 1966 chevy truck overload springs i took them off my 66 truck and gave them to my neighbor. they would not work with the ECE 6 inch drop. __________________ The price of cool aint cheap.

07-03-2011, 01:13 PM	#4
1968vetL-71 Junior Member Join Date: Jun 2004 Location: Murfreesboro, Tn Posts: 1,092	Re: 1966 chevy truck overload springs These were on the 66 frame I cut up for my crew cab. They mount all the way down under the trailing arms also. I still have the complete assembly including hardware. Attached Images __________________ 1969 impala conv 427 #s loaded. dad bought new 1969 "Judge" RA-3, rare warwick blue/white, #'s 1968 vet convertible #s 427/435 tripower (sold) 1968 belair 2door post #s 427/385 1936 ford 5w coupe dads 1st car 1969 camaro ss (17,xxx) miles Wanted: 69-72 suburban project, 69 camaro convertible. also any big block cars. 69-70 gto judge project.

07-03-2011, 04:11 PM	#5
TR65 Senior Member Join Date: Nov 2007 Location: Greenville, SC Posts: 873	Re: 1966 chevy truck overload springs I took them off of my truck recently. The ride was greatly improved!! The darn things engage when going over speed bumps, bumps in the road, uneven pavement and were brutal. TR __________________ 1965 C10 SWB Fleet Two owner LS2 Swap Thread http://67-72chevytrucks.com/vboard/s...d.php?t=413880

07-04-2011, 08:04 AM	#7
63sbssbbw UCA63 Join Date: Aug 2005 Location: Lloydminster AB Can. Posts: 1,637	Re: 1966 chevy truck overload springs I have those on my '63 GMC I'm doing Will leave them there for now,we'll see T __________________ member#7816 "63 sb ss bbw 350\350 12 bolt rear Pwr Fr Disc PS tilt '61 GMC in progress '63 GMC to use for parts '90 Chevy Ext cab sbfs 5.7l (current d d)

07-04-2011, 02:26 PM	#9
1966chevytrucks Registered User Join Date: Jun 2011 Location: benld il Posts: 43	Re: 1966 chevy truck overload springs I guess mine are aftermarket bc they are u bolted to the frame not on a riveted mount. Attached Images

07-06-2011, 01:24 AM	#10
collins10672 Registered User Join Date: Jan 2009 Location: bean station tennessee Posts: 398	Re: 1966 chevy truck overload springs these are original to these trucks.most people do take them off and throw them away for a better ride.on the 1966 trucks on the spid they are called "auxilliary rear spring equ."they were an option. Attached Images

07-06-2011, 01:47 AM	#11
iehotrod Registered User Join Date: Dec 2008 Location: Oak Hills, California Posts: 393	Re: 1966 chevy truck overload springs I have those in my 62 shorty and I think I rather have them on then off. I think they also help with cornering kinda like a sway bar would do to some extend that is. Correct me if I am wrong in my theory. Also mine are the u-bolt type must be after market.

07-06-2011, 10:35 AM	#12
1966chevytrucks Registered User Join Date: Jun 2011 Location: benld il Posts: 43	Re: 1966 chevy truck overload springs I might take them apart and remove one spring to lighten them just a touch and give it a little more travel before they come in to play.

07-06-2011, 11:26 AM	#13
61_FL_Apache Who Me? Join Date: Sep 2010 Location: Royal Palm Beach, FL Posts: 4,067	Re: 1966 chevy truck overload springs I had the mounts on my 65 but no springs. __________________ Steve 1997 Tahoe LT 4D 2WD (DD) 2001 Blazer 4D 2WD 1961 Apache 10 (sold) 1965 C10 Stepper (sold)

07-06-2011, 12:36 PM	#14
iehotrod Registered User Join Date: Dec 2008 Location: Oak Hills, California Posts: 393	Re: 1966 chevy truck overload springs 1966chevytrucks- I believe thats the way to go.

07-06-2011, 02:30 PM	#15
badblu97 Double 6's Join Date: Oct 2008 Location: Winter Haven, FL Posts: 349	Re: 1966 chevy truck overload springs I have these on my 66 as well, they were ordered from the factory because the PO (original owner, I might add) had a camper on her. Im taking them off to get her in the weeds!! __________________ Street Glidin! 1966 LWB Custom Cab (sold) 1982 Short Fleet (under the knife) 1998 S10 2wd Fleet 2007 Chevy Silverado Crew 2007 Harley Davidson Street Glide

05-06-2016, 10:53 AM	#16
LostMy65 But Found Her 25yrs Later! Join Date: Oct 2010 Location: Oregon City, Oregon Posts: 10,523	Re: 1966 chevy truck overload springs Saw these on a 3/4 ton frame yesterday. Here's an older thread: http://67-72chevytrucks.com/vboard/s...light=overload __________________ I lost my 65 - Found it 25 years later: http://67-72chevytrucks.com/vboard/s...d.php?t=426650 66 C20 Service Truck: http://67-72chevytrucks.com/vboard/s...d.php?t=428035

05-07-2016, 04:21 PM	#17
Metalaroundstone Registered User Join Date: Nov 2012 Location: Austin, TX Posts: 205	Re: 1966 chevy truck overload springs Here is another informative thread on several types of overload springs. I added a set of original equipment overloads to my c10 and they significantly added to its carrying capacity. As I understand it, each spring adds 500 lbs of load capacity I have never noticed them altering the ride when I was driving without a load, but my truck has not been lowered. Opinions about original helper springs http://67-72chevytrucks.com/vboard/s...d.php?t=600642 Last edited by Metalaroundstone; 05-07-2016 at 04:28 PM. Reason: fix link



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05-07-2016, 06:22 PM	#18
jocko Senior Member Join Date: Oct 2009 Location: Godley, TX Posts: 17,945	Re: 1966 chevy truck overload springs Overloads were mando equipment on a Custom Camper, optional on others. If not hauling or towing, probably just as well to remove all or some leafs if not happy with the ride. Lostmy65, what are you speaking to in the frame pic? I see no overloads, only a bump stop - or am I missing the point of the pic? Thanks.

05-07-2016, 06:53 PM	#19
LostMy65 But Found Her 25yrs Later! Join Date: Oct 2010 Location: Oregon City, Oregon Posts: 10,523	Re: 1966 chevy truck overload springs Yeah, just the bumpstop plate on the trailing arm base. Saw it on a frame out in the wild. Thought I'd snap a pic and post it. __________________ I lost my 65 - Found it 25 years later: http://67-72chevytrucks.com/vboard/s...d.php?t=426650 66 C20 Service Truck: http://67-72chevytrucks.com/vboard/s...d.php?t=428035

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