Front Coil Springs - Ford Bronco Forum
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post #1 of 24 (permalink) Old 03-12-2019, 11:24 AM Thread Starter
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Front Coil Springs

Looking to replace the very rough riding Rough Country coils for my 2.5 inch lift. Who makes some "softer" replacements? According to RC the ones I have now have a 395 spring rate

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post #2 of 24 (permalink) Old 03-12-2019, 11:26 AM
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I have Deaver coils on a 6” lift. They are pretty soft. Mine came from Jeff’s BG.
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post #3 of 24 (permalink) Old 03-12-2019, 12:07 PM
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I reached out to deaver about a year ago to see if they made a replacement 2.5 inch spring and it turns out they do. To the tune of 400$ for the pair, Im still on the fence.
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post #4 of 24 (permalink) Old 03-12-2019, 12:12 PM
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Quote:
Originally Posted by 92BroncoXLT View Post
...To the tune of 400$ for the pair...
$$$
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post #5 of 24 (permalink) Old 03-12-2019, 12:26 PM
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Quote:
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$$$
My thoughts exactly.
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post #6 of 24 (permalink) Old 03-12-2019, 06:56 PM
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395lbs/in is actually a good rate for the TTB. I wouldn't want to go much softer than that. What shocks are you running?
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post #7 of 24 (permalink) Old 03-12-2019, 07:53 PM Thread Starter
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Quote:
Originally Posted by 92BroncoXLT View Post
I reached out to deaver about a year ago to see if they made a replacement 2.5 inch spring and it turns out they do. To the tune of 400$ for the pair, Im still on the fence.
Yikes! 400.00!?

Quote:
Originally Posted by BoulderBronco View Post
395lbs/in is actually a good rate for the TTB. I wouldn't want to go much softer than that. What shocks are you running?
I'm running KYB Monomax(mono tube)shocks, I have quad shocks and remove one on each side, it helped a little. It doesn't help that our streets here in CA are beat to shit

No bum that can't speak poifect English oughta stay in this country...oughta be de-exported the hell outta here!"

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bron·co/ˈbräNGkō/
Noun:
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post #8 of 24 (permalink) Old 03-12-2019, 07:57 PM Thread Starter
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395lbs/in is actually a good rate for the TTB. I wouldn't want to go much softer than that. What shocks are you running?
395 is what RC said they were. My springs are eight years old, it didn't dawn on me to ask if any changes were made to the springs in that time

No bum that can't speak poifect English oughta stay in this country...oughta be de-exported the hell outta here!"

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post #9 of 24 (permalink) Old 03-13-2019, 09:00 AM
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Im not sure what the spring rate is on my tuff country 2.5 inch springs but its got to be way up there, its rough. I've been trying to come up with a solution for less than the 400$ deavers but there isn't much out there.

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post #10 of 24 (permalink) Old 03-15-2019, 06:27 PM
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I have an old 2.5" Rough or Tuff country lift on mine. Bought used off this site. I used to run cheapo Rancho socks and it rode like a brick. I finally drop the coin on some nice bilsteins and it is smooth and plush now. I do have a winch on the front of mine though.

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post #11 of 24 (permalink) Old 03-15-2019, 07:48 PM
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94 5.8 - pro comp heads - holley 650 - stainless headers - HEI ign -NO COMPUTERS!! . M5OD-R2, 1345, 3:55, 33"
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post #12 of 24 (permalink) Old 04-04-2019, 10:01 PM
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I’ll add to this for anyone who stumbles across this in the future.

I did some homework today and reached out to both Rough Country and Tuff Country to get a definite answer about the spring rates for their 2.5” kits. As posted before in this thread Rough Country verifies that their springs are a 395 lbs/in, I then found out that the coil springs from Tuff Country (the ones currently on my truck) are 800 (!) lbs/in. No wonder it rides like a dump truck! Just for giggles I asked what the 4” springs were, those are still 650 lbs/in!

I ordered a pair of Rough Country springs today, at just less than half the spring rate of my current coils it’s GOT to ride a little smoother. We will see

Dylan

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post #13 of 24 (permalink) Old 04-04-2019, 10:08 PM
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moog 824 factory variable rate E250 springs. Great ride, perfect height, cheap. Stock springs are moog 820 https://www.ebay.com/itm/Moog-Chassi...0AAOSwTPRassPJ

94 5.8 - pro comp heads - holley 650 - stainless headers - HEI ign -NO COMPUTERS!! . M5OD-R2, 1345, 3:55, 33"
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post #14 of 24 (permalink) Old 04-05-2019, 09:36 AM
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moog 824 factory variable rate E250 springs. Great ride, perfect height, cheap. Stock springs are moog 820 https://www.ebay.com/itm/Moog-Chassi...0AAOSwTPRassPJ
Would E250 springs be tall enough to provide 2.5" of lift though?

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post #15 of 24 (permalink) Old 04-05-2019, 12:33 PM
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Skyjacker SR coils ride decent or Moog variable rates work well.
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post #16 of 24 (permalink) Old 04-05-2019, 12:41 PM
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Front Coil Springs

Moog 820spec

Specs are: ID = 4.00 in Bar Diameter = 0.71 in Spring Rate = 366.00 lbs per inch Load=1428.00 lbs Installation Height = 12.13 in Free Height = 16.19 in

A set of these leveled my 85 just right. Ride nice. On the soft side. Way better than stock.


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post #17 of 24 (permalink) Old 04-05-2019, 07:58 PM Thread Starter
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Thanks for all the replies!
The Moog 824's would be about 2 inches to short for a 2.5" lift.
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post #18 of 24 (permalink) Old 04-06-2019, 09:45 AM
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In 4" lift springs for a FSB:
Skyjacker and superlift springs are 650lb/in
Procomp are 475
Rancho are 450
None are lower.

If they say they are 395lb/in and they are jarring, then they are lying to you. My procomp springs are soft enough I can bounce the front around by hand. Couldn't do that with the skyjackers on my 94.

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post #19 of 24 (permalink) Old 04-07-2019, 11:51 AM
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I know the Moog springs if you get them in the 460 engine variety sit way higher than stock, like easy 2.5”.
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post #20 of 24 (permalink) Old 04-07-2019, 12:50 PM Thread Starter
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Originally Posted by 445 FE Bronco View Post
I know the Moog springs if you get them in the 460 engine variety sit way higher than stock, like easy 2.5”.
Just looked those up for a F series and E series and both are about 2" shorter than I need....bummer

No bum that can't speak poifect English oughta stay in this country...oughta be de-exported the hell outta here!"

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