[Angelo]

Hi all -

Looking for a little help here from anyone who has pulled off the TRD Pro front COs or may have access to a set off their rig. I need unweighted / non-loaded measurements on the length of the front springs. Bonus points for anyone finding a verifiable OEM spec listing (i.e. spring rate, etc.), which I'm not sure even exists but seems like it should.

I know there are a few Toyota techs in the house... can anyone direct me?

Thanks.

[HTXpro]

I'll know tomorrow when I pull mine off. If you haven't gotten an answer by then I'll measure and post up.

[weeeee]

I have measurements. 3" ID, 13" length. Should be 550# springs IIRC. If you're looking to boost the weight capacity and get a slightly higher lift, King 3x14" 650# springs should do the trick.

I'll add pics of measurements later when I find them, looked into doing something similar when I first got the truck.

[Angelo]

Originally Posted by HTXpro

I'll know tomorrow when I pull mine off. If you haven't gotten an answer by then I'll measure and post up.

Originally Posted by weeeee

I have measurements. 3" ID, 13" length. Should be 550# springs IIRC. If you're looking to boost the weight capacity and get a slightly higher lift, King 3x14" 650# springs should do the trick.

I'll add pics of measurements later when I find them, looked into doing something similar when I first got the truck.

Thank you both. LMK what you find.

[Crikeymike]

We are looking at making 1" and 2" lift replacements over those same coils, to give people some more options, and not have to lose those struts.

We haven't yet been able to verify if we have any existing coils that will do the job. If anyone has a set of those coils that they don't need or are willing to sell, please let me know.

[p0r0y]

Originally Posted by Dobinsons Mike

We are looking at making 1" and 2" lift replacements over those same coils, to give people some more options, and not have to lose those struts.

We haven't yet been able to verify if we have any existing coils that will do the job. If anyone has a set of those coils that they don't need or are willing to sell, please let me know.

Following.

[weeeee]

Originally Posted by Angelo

Thank you both. LMK what you find.

Sorry this took a little digging. I took these measurements a while back when I wanted to get a small lift out of the TRDP and up the load rating on the coils. As mentioned, closest off the shelf coil you'll find is a 3x14 spring commonly found by King.

Originally Posted by Dobinsons Mike

We are looking at making 1" and 2" lift replacements over those same coils, to give people some more options, and not have to lose those struts.

We haven't yet been able to verify if we have any existing coils that will do the job. If anyone has a set of those coils that they don't need or are willing to sell, please let me know.

Originally Posted by p0r0y

Following.

The stock TRDP front shocks are nearly identical to the Bilstein 6112. The difference is that the two higher spring perches are omitted from the TRD shocks.

Toytec makes a 1 and 2" spacer which is does essentially the same as a higher spring perch and should give a 1-2" lift. You'll gain a little more preload translating to a slightly stiffer ride, and get a little less uptravel.

Plenty of people running them here in this thread:
Trd pro lift question

[greatape]

Originally Posted by weeeee

Plenty of people running them here in this thread:
Trd pro lift question

This is good info (spring measurement and comparable)for that thread, I'd venture to say a lot of those in PRO threads don't dig to deep in others

[Kashoggio]

Originally Posted by p0r0y

Following.

Yes yes

[Saker]

Originally Posted by weeeee

The stock TRDP front shocks are nearly identical to the Bilstein 6112. The difference is that the two higher spring perches are omitted from the TRD shocks.

Maybe not following here, but my 6112's have 5 Circlip grooves, not 4.
Also, from what I was told by the Bilstein tech, the valving is different (and are not digressive) in the 6112 vs the TRDP shocks. Plus the springs are 600# made by Eibach for Bilstein, .
Correct me if I misread @weeeee !

[HTXpro]

Originally Posted by Saker

Maybe not following here, but my 6112's have 5 Circlip grooves, not 4.
Also, from what I was told by the Bilstein tech, the valving is different (and are not digressive) in the 6112 vs the TRDP shocks. Plus the springs are 600# made by Eibach for Bilstein, .
Correct me if I misread @weeeee !

Yeah that's correct. The newer design of the 6112 has 7 circlip settings though.

[weeeee]

Originally Posted by Saker

Maybe not following here, but my 6112's have 5 Circlip grooves, not 4.
Also, from what I was told by the Bilstein tech, the valving is different (and are not digressive) in the 6112 vs the TRDP shocks. Plus the springs are 600# made by Eibach for Bilstein, .
Correct me if I misread @weeeee !

You are correct, sorry. My 6112 had 5 circlip settings, TRDP shocks had only 2.

6112 came with Eibach 600# springs, 3" ID, 14" length.
TRDP came with TRD 550-600# springs, 3" ID, 13" length.

Not sure about the valving, both felt the same to me. When I compared the two visually at least side by side they were near identical.

[quicksandTRDPRO]

This is what I've been looking for. I have no complaints with the stock Bilsteins for my needs. But I would like to get a mild lift without going the spacer route. So having some different coil options to swap out with stock is perfect for me. Thanks @weeeee , @Dobinsons Mike and others for your input.

[Angelo]

Originally Posted by Dobinsons Mike

We are looking at making 1" and 2" lift replacements over those same coils, to give people some more options, and not have to lose those struts.

We haven't yet been able to verify if we have any existing coils that will do the job. If anyone has a set of those coils that they don't need or are willing to sell, please let me know.

My thinking was that if it's being accomplished with spacers, it should be doable with springs too, but I'm new to this.

I guess the other part of my question is for those here that have experience with this sort of thing, is there any reason why this could be a bad idea? Is it reasonable thinking to try this? I'm not necessarily looking to add weight anywhere at the moment, just more lift while keeping the TRD Bilsteins.

[mAtTyGlaz]

Any updates on this? Interested. Currently have the Toytec Pro lift (front is just spacers). Looking at adding a bumper/winch soon. Not crazy about spacers but don't wanna shell out $ for new coilovers. Swapping coils would be a great option if it worked.