Alternative to 5100s / 5125s for rear lift

So my plan was to put on the Icon RTX leaf pack, probably option 2, and use the extended 5100s in the rear. There are apparently a couple options like the 5125 for 2-3" and the B100 5100 (I don't get the model names) for 4". I'm having the work done at a local shop and they cannot get the right rear shocks. He also said the proper shock will depend on the actual lift we get from the Icon leaf pack and he won't know that until they are installed meaning we really need a couple options on hand.

Since we've been waiting several months and no real idea when anything will be available, what would be a good alternative? I originally thought about the Eibach Stage 2 setup, but as near as I can tell those don't work beyond 1.5" of lift in the rear and the leaf pack is advertised at 1.75" or more depending on added weight. I only have a shell so not more than 200 lbs static weight. I'd also hate to remove the shell and find I have issues with the shock being too short.

Is there anything similar in price/ride that maybe I'd have more luck finding?

 

I have heard good things about the Eibachs. But, check with @memario1214 . He might be able to either help with info or get you the 5125s that you need. The extended length helps get the full travel. The only concern is the collapsed length and your bump stop size.

The big deal here is that the RXT Option 1 and Option 2 packs are approximately the same thickness since you are trading the AAL leaf. I can give you an Option 1 pack thickness, but there are a lot of folks in the main RXT thread that could give you an accurate Option 2 thickness?

https://www.tacomaworld.com/threads/icon-rxt-leaf-pack.505580/


Here are the numbers that I have. The top line is the standard 5100 rear.

 

Thanks. I've been nothing but confused by this process and I get different info from different people as well as the shop.

I certainly don't have a good grasp of this, but based on what I've found so far I feel like the 33-319070 aren't ideal as they are advertised for 4" or more of lift and I don't want nor could I even get that much lift. Being potentially too long could maybe be fixed my the proper bump stop but am I then limiting the travel in the rear?

However, based on what what my shop said, it sounds like the 33-230337 (the 5125 model) might not be valved right for good ride quality.

I'm wondering if I should bite the bullet and just get a full Icon setup as they should be designed to work right with the leaf pack. Assuming they are available.

https://iconvehicledynamics.com/acc...-0-35--16-up-0-275-stage-2-suspension-system/

 

This is the first time I've heard of 5125s

 

You're welcome.

I have the

$112 33-230337 Monotube Shock Absorber, 46mm

33-230337 rears. They are only 1in longer than Stock, but I didn't swap bump stops. I could have gone with the 33-319070 rears if I did. The Option 1 packs drooped out at over 2.6in more than the fully extended stock rear shocks with no brake line issues.

AFAIK, all B8 5100s / 5125s have the same valving, but I could be wrong. IMO, my setup drives like a champ on and off road. Way better than the stock setup, loaded, normal, or empty.

I would not fear the 33-319070 rears. You just need to do the collapsed length measurements / calcs.

 

They're extended travel 5100s. Same family.

Some wise folks pointed me in that direction before I made a mistake with the standard 5100 rears.

 

I use 5160s on the rear of my 2nd gen with my Deaver U402 Stage 3 leaf springs. I run with WILDLY varying loads and haven't had any issues.

Bilstein 5160: (numbers from wheelers offroad)
Shock Length is 14.22" Collapsed and 24.06" Extended

 

How did that slip my mind? 'Nam flashback now. Haha!

Like you said, easy to do though.

Yes. Stock bumps that leave witness marks on the frame, so life is good.

If we can get measurements of the Option 2 and Option 3 pack thicknesses with some miles on them, I would be happy to add them to my data.

 

Thanks. The 5125 might be a good choice, but for some reason my shop felt it "might" not be ideal and he wanted to wait and see how much actual lift we end up with but with his suppliers being OOS he can't get either and really needs both on hand I guess. TBH, I'm not really sure what the issue is beyond being out of stock.

As for the "right rear" I meant "correct rear" as he isn't sure which model would be correct until the leaf pack is installed.

I don't really want to pony up for Icon all around so maybe Eibach would be a good alternative. I was thinking the Stage 2 setup - https://eibach.com/us/1920/E86-82-007-01-22-TOYOTA-Tacoma-pro-truck-coilover-stage-2. Thoughts?

 

When I got my suspension from @memario1214 last June, everything was messed up due to COVID. So, the packs came first, then the 5100 fronts, and finally the 5125 rears. I couldn't wait and installed the stuff as it came in. You can certainly drive with the stock shocks for a while. I did a 4k road trip with them. The rear wasn't as controlled as it should have been, but it was fun feeling the changes individually. Getting the rears in there completed the package and was a very noticeable and positive change.

I have not read a regret post about the 5100 setup. Only posts about folks upgrading later on as they did other mods or wanted to go higher.

I'm 1.5in over stock on both ends and am perfectly happy.

 

I think this discrepancy of recommended lift is due to how they are marketed. Eibach does not offer leafs so they sell blocks. The block height plus stock leaf pack will consume more shock length than a icon or ome leaf pack resulting in limited down travel for the same up travel .

For the OP FWIW, I just installed 5160's with OME EL111r leafs (about the same thickness as icons). at full bump there is still ~1/2" stroke left in the shock and the leafs have about 1-1.5" of preload at full droop.

 

Thanks. For the shocks, Which model 5100? The extended ones, 33-319070 I think, or just the regular ones? I think ultimately the ones that might be best are the 5125 model number

$112 33-230337 Monotube Shock Absorber, 46mm

33-230337 (I think). I think the 33-319070 are going to be too long for my modest lift.

 

The 5125's you will likely need to extend you brake lines and bump stops to prevent the shock from bottoming on itself. you will gain some droop tho.

 

Just as reference. 5160 length with ome el111r(about the same thickness as icons) left me with about 1/2" left at full bump

 

Hope my shop figures that out

 

I’m not sure how much this’ll help, but the Ironman nitrogen are 23.97” extended and 14.21 compressed. @ohcaltexscar has been happy with his kit. I’ve got the Foam Cells so can’t help more than that-

https://ironman4x4america.com/rear-shock-absorber-nitro-gas-suited-for-2005-toyota-tacoma/