Coil spring size difference

83999 Views 185 Replies 30 Participants Last post by mrsxxx1, Jun 14, 2019

gr8titan

Discussion Starter · Sep 3, 2013

I've recently read here on TT that the 2008+ Titans have taller front springs than their older siblings ... and installing them in the 04-07 Titans would raise up the front. I have a few questions for the suspension pros: :dunno:

1. Are the Pro-4X springs any different in height than the 08+?
2. How much taller are the 08+ springs over the older ones?
3. When the 08+ springs are installed with the Bilstein 5100 set at mid-setting, how many inches of height is achieved?

Thanks in advance

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gr8titan

Discussion Starter · #21 · Sep 22, 2013

FishnAlaska said:
I did my 2010 4x4 springs with O'Reilly's rental spring compressors and a hand wrench....

I don't think we have O'Reilly Rentals in the Northeast but thanks tho.

PaPro4x

· #22 · Sep 22, 2013

gr8titan said:
I don't think we have O'Reilly Rentals in the Northeast but thanks tho.

Autozone rents

gr8titan

Discussion Starter · #23 · Sep 22, 2013

TA CC TX said:
pep boys can do it or rent two spring compressors,,,, pep boys sounds better to me.

Wish I posted here before I ordered that freekin hydraulic strut spring compressor. Oh well ... live and learn. Another tool that's gonna use up space for a looooong time. Thanks anyway bro

PaPro4x

· #24 · Sep 22, 2013

Rent it to people to make the money back :thumbup:

local guys might need to do new struts

Reactions: 1

gr8titan

Discussion Starter · #25 · Sep 22, 2013

PaPro4x said:
Autozone rents

That's what I used ... Autozone rental ... the springs are too stiff the threads are actually getting "stripped". Can't compress enough to accomodate the "middle setting" of the Bilstein 5100. Although they're pretty close to the same height, the Moog coils are fatter and 8 coils versus 7 on the OE springs. The Autozone rental can compress the OE but not the Moogs.

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osiris10012

· #26 · Sep 22, 2013

I had the same problem with them as you are having. We tried the cheapo rental compressors and could barely get them on stock struts and I do mean barely, let alone 5100's on the middles setting. The next set I did we used a wall mounted compressor and it was a night and day difference. I also think that the moogs from rock auto are the equivalent to the pro4x springs giving them that beefier diameter and higher spring rate. I can't wait to hear the results with that hydraulic compressor and see the after install pics!

Reactions: 1

kmr481

· #27 · Sep 22, 2013

I used the auto zone loaner compressor, it worked, but it was definitely working hard. I went with the moog springs from rockauto and they are definitely stiffer than the ones I took off.

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Reactions: 1

gr8titan

Discussion Starter · #28 · Sep 23, 2013

osiris10012 said:
I had the same problem with them as you are having. We tried the cheapo rental compressors and could barely get them on stock struts and I do mean barely, let alone 5100's on the middles setting. The next set I did we used a wall mounted compressor and it was a night and day difference. I also think that the moogs from rock auto are the equivalent to the pro4x springs giving them that beefier diameter and higher spring rate. I can't wait to hear the results with that hydraulic compressor and see the after install pics!

I ordered this "2 5 Ton Auto Strut Coil Spring Compressor Hydraulic Tool HD Heavy Duty Auto Tool" from eBay after a frustrating day yesterday. Now my truck is sidelined till this gets delivered

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honda250xtitan

· #29 · Sep 23, 2013

Thats awesome!^^^^

all those parts look sweet waitin to get installed. Cant wait to see it all come together!!

Reactions: 1

osiris10012

· #30 · Sep 23, 2013

Wow that bad boy is sweet! I may just have to look into purchasing one myself.

juscuzram

· #31 · Sep 24, 2013

I know the 4x4 08 Springs are a little bigger, but would putting a set of 08 2wd Springs w/factory shock make a difference on my 2wd 06? I am running a 2.5" NCD level kit

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osiris10012

· #32 · Sep 24, 2013

It wouldn't be worth the effort and money. If you do the +08 4wd springs you will get around 3" of lift on stock struts. This would allow you to completely remove your spacer and have a .5" more lift than you currently do. I have personally installed these on a friends 11' T with his stock struts and thats how much lift he obtained.

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juscuzram

· #33 · Sep 24, 2013

Cool I might look into a set. I'm mostly wondering because my front shocks are about shot and I was looking at a set of 08 2wd factory

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gr8titan

Discussion Starter · #34 · Sep 24, 2013

juscuzram said:
Cool I might look into a set. I'm mostly wondering because my front shocks are about shot and I was looking at a set of 08 2wd factory

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As osiris10012 said above ... your T would sit about 3" higher than stock because the stiffer/longer 08 4x4 springs WILL NOT SETTLE as low as the weaker/skinnier/shorter pre-08 springs when the jack is finally released. The other advantage to this is that there will be no CBC while maintaining full range of compression, all angles are almost stock & eliminates the use of spacers. From further research, another reason that your T will sit higher is because the Coil Bucket on pre-08 are welded a tad lower than the 08+s. If you use Bilstein 5100 shocks (since your shocks are shot anyway) and set them at middle setting or highest setting, you'll preload (consequentially get a rougher ride) the springs and will resist further settling down with the weight of the truck ... thus it will sit higher.

Reactions: 1

osiris10012

· #35 · Sep 24, 2013

gr8titan said:
From further research, another reason that your T will sit higher is because the Coil Bucket on pre-08 are welded a tad lower than the 08+s.

Thats some good info right there. I was not aware they adjusted the coilbucket.

gr8titan

Discussion Starter · #36 · Sep 25, 2013

osiris10012 said:
Thats some good info right there. I was not aware they adjusted the coilbucket.

There's so much i've learned these past few weeks researching the T's suspension. That's why the 08+ coil springs are a tad (0.5-1 inch maybe?) taller to compensate for the difference in CB location. Also Bilstein 5100s adjusted their shocks to accomodate the newer (08+) T's taller coil springs thus reducing the first setting from 0.5" to zero. Below are a comparison between my 04 4x4 LE (left) and Moog 08 4x4 (right)

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osiris10012

· #37 · Sep 25, 2013

Wow thats quite the difference. Not only is it taller and a thicker material, but it also has an extra coil in it. I can't wait to see your overall results after install. I have been thinking about going down this path for quite some time. Just haven't pulled the trigger on it yet.

gr8titan

Discussion Starter · #38 · Sep 25, 2013

2

Comparison in unladen height between stock strut (left) and Bilstein 5100. As you'd notice ... there's almost 1" in height difference. Just for further comparison, the second picture shows Bilstein with 2" block relative to OE height.

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honda250xtitan

· #39 · Sep 25, 2013

are they both fully extended? or compressed? i thought they made the new ones to match the stock ones.

gr8titan

Discussion Starter · #40 · Sep 26, 2013 (Edited)

honda250xtitan said:
are they both fully extended? or compressed? i thought they made the new ones to match the stock ones.

Both are fully extended ... At least I tried to pull each piston outwards. I was surprised myself at the difference but aren't the Bilsteins supposed to be longer anyways ... or maybe ... were they designed for the newer 08+ models with the longer coil springs? Either way ... that will work for well me because that's what I'm after anyway ... Front lift without spacers.

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