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Old 06-11-2005, 09:56 AM   #1
plumberkrak
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Deaver Front Springs For Solid Axle Chevy

hi, my truck is an 87 gmc 3/4 ton, i have a 6" superlift suspension with dual shocks upfront. right now it rides horrible. has anyone every put Deaver leaf springs on there 4x4? Deaver Inc. states that i will notice a HUGE! difference in ride quality. The springs cost over $700. is it that nice of ride or do i still have to go really slow down bumpy roads? thanks.
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Old 06-11-2005, 03:28 PM   #2
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2 words of advice for you. 1) remove the dual shock setup, one quality shock is more than adequate. the second shock is contributing to your rough ride. 2) dont waste your money on Deavers if the truck isnt a trail rig. Tuff Country and BDS make the softest production 6" springs on the market. lots of guys at CK5 run them, and they say the ride is great.
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Old 06-11-2005, 07:09 PM   #3
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I have superlift soft ride springs that are more biased for the street and do well off road. Both 4 inch and 6 inch lifts, all spring no blocks
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Old 06-11-2005, 11:28 PM   #4
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I had Superlifts on an`84 K/30 with Dual Hecko hydraulic shocks(diesel truck).It rode alot better than anything I`ve had with gas shocks.As far as gas shocks go,I`m running Rancho RS9000Xs on my`91 Suburban.They`re adjustable and ride real soft on the lightest setting.What shocks are you running?
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Old 06-11-2005, 11:46 PM   #5
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Is Hecko the brand? i have heard good things about the RS9000xs shocks, but they are pricey, yes, cheaper than say Deaver spings, but i am a little nervous on what i should buy. i dont take the truck out that often, but when i do i like to go fast and i want it to be in control when i go over bumps or rocks. i guess what i am looking for is a good analigie so i can amagine what they ride like. not just it rides great, because great to you might be only ok to me. maybe. i used to have a 99 dodge ram 1/2 ton. it had coilspacers and 35" tires also and i rode so well, the springs acutally compressed when you went over the speed bump and if you went fast over the bump, well, it was like you just hit a small rock i the road. now i know that it helps that its a 1/2 ton, but the 3/4 tons ride nice to, and i know that i have a completley different suspension system than a dodge, but for a full size truck, they rode nice and that is what i am trying to achive with my GMC for the lowest buck, but with nice, quality parts. i only want to do this once. as far as the shocks that i have go, i think they are just simple gas shock that superlift supplys with there lift. nothing fancy.

Last edited by plumberkrak; 06-11-2005 at 11:50 PM.
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Old 06-12-2005, 04:24 AM   #6
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I think the member(s) were trying to say that removing one of the shocks on each side up front is a no cost experiment to see if the poor ride is all spring, just shocks, or a combination of the two. IOW, a second shock's compression resistance could stiffen the ride some.

As far as Deaver's custom springs go, yes they will ride much better than off-the-shelf lift springs because, as quality custom springs, they will have many thin, progressively longer leaves (prolly 7-10) that achieve much of the lift from a larger spring pack which enables the arch of the main leaf, and those leaves that clamp to it, to have less arch than off-the-shelf springs. They will flex well both from the thinness of the leaves and the moderate arch of each leaf, yet they will have more load handling capacity because they have more leaves backing the main leaf. Also, the thick spring pack will fight axlewrap well. I'd guess that the only reason the factory didn't offer such superior, albeit non-lift, springs is the expense.

Off-the-shelf springs, however good, will have fewer, thicker leaves (~5-6) which means that the lift comes more from mucho spring arch with a small spring pack. More arch=worse ride and more axlewrap.

Custom springs vs. off-the-shelf springs really boils down to you get what you pay for. As far as Deaver's prices, I would definitely compare them with custom springs made by Alcan Spring in Grand Junction, CO. I think they have better prices. Probably because they have less overhead in CO vs. Deaver in Taxifornia. National Spring, near San Diego (El Cajon?) is another custom spring maker.

As you can probably tell, I'm the board's only custom leaf spring advocate. I have custom 4" lift springs from National Spring on my FJ40 Landcruiser. Great ride and articulation. I'll never go back to off-the-shelf springs. I'd rather save my money longer in order to go custom. To each his own....
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Old 06-12-2005, 04:41 AM   #7
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I almost forgot a great benefit of going with custom springs for 67-87 GM 4x4 trucks that I often recommend:

Alcan Spring is familiar with Off Road Design's 1/2" longer front shackles. ORD's shackles alter the caster due to their 1/2" longer length, but the extra length is valuable since it enables longer front lift springs to compress farther without the rear, shackle-mounted spring eye hitting the underside of the frame.

Alcan can put the exact amount of extra arch needed in the front half of their front springs for GM 4x4s so that, when ORD's longer shackle is used, the caster will remain at the stock, factory spec. You just have to tell Alcan up front that you intend to use ORD's longer shackles.

Edit: Come to think of it, I believe your '87 already has the length shackle that ORD offers, only non-greasable. I'm used to talking only about 67-72s. In any case, the greasable feature would add smoothness to the ride.
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Old 06-12-2005, 09:08 AM   #8
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Hecko/Heckethorn.That`s what Superlift uses,I think.You don`t want hydraulic shocks for rockin`n`rollin`off-road,though.There`s more than one person here that`s up on custom springs.I was just trying to help you start with the simplest and cheapest route.I don`t drive my stuff like that off-road,not my style.You seem to need to go the desert racing route,lot`s of give,travel,quick recoil,and control at speed.A custom control arm/coil suspension with tall shock towers and reservoir shocks would be the ultimate.The route you are considering would be best for your multi-use.Check out those companies 4x4poet refered you to for springs.Alcan or National can recommend shocks.The name King will come up I`m sure.
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Old 06-12-2005, 09:11 AM   #9
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I would also remove one of the shocks to see if it helps the ride. I like the Rancho 9000's after running the 5000's on all my trucks. I did have some Hecks one time. They were pretty soft. The settings on the 9000's are noticeable.
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Old 06-12-2005, 07:39 PM   #10
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when i got the lift, it only came with one shock up front, i bought the dual shock setup afterthefact because someone told me that it helped him having two shocks. the ride didnt really change much, i think in part because the shocks are a farley soft shock. When i called Deaver they said what i have is stiff springs and soft shocks. what they recommened is there soft springs and stiff shocks. also i should have been more specific earlier, when i ment going fast off road i didnt mean desert style, just like 15-25 mph and not get ejected when i hit a bump. right now i can only go about 5-10 mph in order to tolerate the bumps. that means it will take me forever to get to my favorite camping and hunting spots. yikes! also, the Deaver springs have 11 springs to the pack, and mine now have 5. thanks for the info i will check out those other spring makers.

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Old 06-13-2005, 12:11 AM   #11
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Quote:
Originally Posted by special-K
...There`s more than one person here that`s up on custom springs....
I know. That's why I said "advocate" instead of knowledgeable.
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Old 06-13-2005, 02:11 AM   #12
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does national have a website? also, would i benifit going with a longer front shackle (2") and only 4" springs over just 6" springs? would this benifit the ride any or would it be cheaper, faster and better to just stay with the 6" springs? thanks
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Old 06-13-2005, 07:42 AM   #13
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4x4poet,that`s cool.I just wanted to clarify that I(& others)advocate custom springs.Just was recommending simple steps to try first.To me,running fast over bumps takes a suspension re-design.The Hotckiss suspension was not designed for speed off-road.Custom springs would be the best route,short of total re-design.Longer shackles give lift approx. 1/2 the additional length(2" longer gives 1" lift)and decreases handling,go with springs of desired lift.You would benefit from going with longer springs.
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"BUILDING A BETTER WAY TO SERVE THE USA"......67/72......"The New Breed"

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Old 06-14-2005, 03:55 PM   #14
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Deaver makes great stuff, and Jeff is a great guy to do business with. Also, National Spring is under new ownership (as of a couple years ago) and I've heard that their quality is GONE!!! I would tend to agree, since I purchased a 64 GMC Sub 4x4 from a guy who had National make him a set of 4 6" lift springs for it. He had not installed them and they came with my purchasing of the Sub. Well, when I went to install them, the front springs were 2" TOO LONG!! I had to take them to Deaver to shorten them up to get them to work. Conversely, I had National make me some 12" lift springs (about 7 years ago) for an '87 Suburban I had, and they were beautifully crafted, rode fantastic, and flexed great. The fronts had 11 leaves each, as did the rears. I would say to be careful in utilizing National for your spring needs.
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Old 06-15-2005, 05:18 AM   #15
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Thanks for the tip, toroflow. I had not heard that about Natl. I, too, had National make me lift springs for my FJ40 back in '96. They also were made well and fit perfect.
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Old 06-15-2005, 09:23 PM   #16
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Toroflo,the springs weren`t intentionally made longer with the idea to move the mounts?
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Old 06-16-2005, 04:09 PM   #17
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No, because there is no room to move the mounts to the rear, due to a body mount bracket being riveted to the frame in that area.
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Old 06-16-2005, 10:57 PM   #18
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Gotcha!That sucks.
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Old 06-17-2005, 07:59 PM   #19
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why save for mucho casho custom one off units, when there is already something on the shelf that will do the job more than adequately. in addition to being one of the softest on the market, BDS has a kick ass warranty.
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Old 06-17-2005, 08:21 PM   #20
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1FaastC10: Where did you hear that they are one of the softest on the market? is it a lifetime warrenty? i would love to save some money but the word is you get what you pay for. do you know anything about the springs personally or just hearsay? if so what can you tell me about the ride and where i can get a price? website?

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Old 06-19-2005, 01:21 AM   #21
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Yeah, 1FastC10, I'd also like to hear of the BDS springs. I'd gladly abandon custom springs if an off-the-shelf spring set had all the benefits of custom springs. Even if they were not quite as good as custom, knowing that some really good off-the-shelf springs are out there might come in handy if I want to save some $$ on a truck I intend to fix up to sell.
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Old 06-20-2005, 12:22 PM   #22
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Right, the only time I would (and did) buy custom soft springs (Nationals) was when no one makes a spring for my application. In the instance of the 12" springs, I had 10" Superlift springs on my 87 dually and they rode like crap, so that is why I had the custom soft 12" Nationals made. Today, I believe a set of four National 12" springs runs upwards of $2000, way too pricey in my book!!!!
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Old 06-20-2005, 10:05 PM   #23
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I bought a`63 Riviera,it rides real nice with stock springs.I`ve liked the ride on all my 4wds.Especially with 37"or bigger tires with tread gnarly enough to pick up lug nuts and spit`em out like sunflower seeds.I like exhaust loud enough to hear over the pleasant "hum mum mum" of the tires,too.
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Old 06-21-2005, 01:26 AM   #24
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i hope that Superlift doesnt read these threads, i dont think that they would like what they are seeing us people writing about there springs. then agian, maybe it would push them to make a better riding spring. i wonder how many of there employees actually use there springs? and like the ride at that. LOL
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Old 06-21-2005, 09:35 PM   #25
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say, a guy i talked to today, mentioned that i could install 52" rear springs upfront and longer shackles. has anyone done this? what will i have to do? relocate the shackles or just put longer ones in stock location? if someone could explain this that would be awesome. i already have a set of rear 52" springs from a 3/4 ton dodge. same size as chevy, only they have 6-7 leafs. i dont know if this will make it stiffer or not? thanks.
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