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| Username | Post: Coil Spring Specs | |
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rob983 Member Posts 22 |
06-09-12 09:50 AM - Post#2235120
Would anyone know the diameter (or specs) of the coil for a 1964 Impala SS front spring? Not sure what springs are on the car but I would like to return it to the original ride height. It's sits too high now. Thanks |
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junky Contributor Posts 924 |
06-09-12 07:56 PM - Post#2235290
The diameter of the springs are all the same. It is the wire dimension that changes, and the number of turn that determines the ride hight. I would do a check of the ride hight per the instructions in the FSM to determine if it is too high before doing anything. Today, getting the correct springs can be difficult, but there is one company that still makes springs using the original GM drawings. Not cheap, but you get what you pay for.
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hsfdchief200 Forum Newbie Posts 57 
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06-09-12 09:15 PM - Post#2235315
Not to hijack the thread, but who is that company? I'll be replacing mine soon.
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62sedan Very Senior Member Posts 3355 
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06-10-12 04:09 AM - Post#2235351
Try here....... http://www.eatonsprings.com/
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rob983 Member Posts 22 |
06-12-12 02:01 PM - Post#2236292
The diameter of the wire is what im looking for. Eaton Springs (Detroit Spring) is 2 miles from me, Its the first place I checked, I was told that there is no way to tell. on Eaton Springs Website it explains that spring application is determined by; length of spring, number of coils, diameter of wire. |
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hsfdchief200 Forum Newbie Posts 57
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06-12-12 09:17 PM - Post#2236461
I can't say about 1964, but I know in 1963 the wire diameter of the springs were NOT the same among all the applications. This is shown in the 1963 Passenger Car Specifications publication. I emailed the Spring Guru at Eaton and listed all the detailed GM specs from that publication for my particular application. He responded and said that that wire diameter is no longer available. He gave a part number for the front and rear, but it appears to be just like all of the other springs in all the parts catalogs - it's a generic part number that covers many applications, both 6 cylinder and V8. After finding this out, I'm not so sure I can justify the doubled price of Eaton springs since it appears that the springs are not built to actual GM specs as they claim.
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turbo38s10 "3rd Year" Gold Supporting Member Posts 678 
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06-13-12 06:11 AM - Post#2236538
Here is what I found out: Sure. MOG-6000 .656" diameter, 305 lbs/in spring rate, 18.6" free height, installed height 11.8" MOG-6004 .671" diameter, 325 lbs/in spring rate, 18.8" free height, installed height 11.8" MOG-6084 .671" diameter, 377 lbs/in spring rate, 16.8" free height, installed height 12.0" (this free ht looks funny, but I checked it twice) MOG-658A .687" diameter, 404 lbs/in spring rate, 18.8" free height, installed height 11.8" Hope this helps |
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rob983 Member Posts 22 |
06-13-12 05:31 PM - Post#2236824
Thanks, I will measure my springs tomorrow. My car with current springs. http://images5a.snapfish.com/232323232%7Ffp635%3A7 ... |
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rob983 Member Posts 22 |
06-14-12 06:18 PM - Post#2237235
Checked springs today, old ones wire dia. is .718 The new ones measure .656 dia. Thanks. Current ride height: 
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bsa_bob Forum Newbie Posts 42 |
07-08-12 10:34 AM - Post#2245705
Here is what I found out: Sure. MOG-6000 .656" diameter, 305 lbs/in spring rate, 18.6" free height, installed height 11.8" MOG-6004 .671" diameter, 325 lbs/in spring rate, 18.8" free height, installed height 11.8" MOG-6084 .671" diameter, 377 lbs/in spring rate, 16.8" free height, installed height 12.0" (this free ht looks funny, but I checked it twice) MOG-658A .687" diameter, 404 lbs/in spring rate, 18.8" free height, installed height 11.8" Hope this helps Where may i ask did you get these specs???????Iam having trouble with my 07 silverado "lowered springs rides terrible]maybe i can figure out what i need to do with a different set And eaton spring is to expensive for my blood too. Someone here mentioned this any help great+thank you bob s |
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turbo38s10 "3rd Year" Gold Supporting Member Posts 678
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07-08-12 01:47 PM - Post#2245769
Summit Racing Tec line gave them to me. |
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cowfarmer350 Senior Member Posts 898 
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07-08-12 05:12 PM - Post#2245830
If you know your Moog part number punch it in to the search on this website and look at the bottom of the page it will give the specs of the spring , .... http://www.moog-suspension-parts.com/proddetail.as... |
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Sweed62 Senior Member Posts 813 |
07-08-12 05:29 PM - Post#2245838
Welcome rob. Funny, while working on my body, i leveled the body to shop manual frame specifications, then, (2 dr HT Tarrytown) the rocker, is dead on horisontal, and side trim is lower at the rear. I really do like that stance. There is a riding height measure in the shop manual for the front, but not for the rear if i remember right. See if you can find it or ask again. I do like your stance anyway, she looks grat. To high refering to what? Svenne |
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dcairns "4th Year" Silver Supporting Member Posts 1553 
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07-08-12 08:19 PM - Post#2245918
What I bought: Moog 658A front Inside Diameter 3.810 Bar Diameter 0.687 Install Height 11.81 Load 2052 Spring Rate 404 Free Height 16.89 6033 rear Inside Diameter 3.670 Bar Diameter 0.656 Install Height 11.00 Load 2005 Spring Rate 370 Free Height 16.44 Tires 245/60/14, somewhat smaller diameter than the stock tire. Looks like this:  
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