I removed the rear blocks on my 2015 F150 and now starting to have some regrets. I like the leveled look but I do want it a little bit higher.

I'm thinking about getting these 1" Eibach blocks. (I measured the stock blocks after I took them out and they were 1.25") : https://www.americantrucks.com/eibac...037-02-02.html

From there I'm thinking about getting either Bilstein or Eibach rear shocks and front adjustable coilovers but this leaves me with some questions.

1. I know the shock specs are different between the 2wd and 4wd models. So after adding the 1" Eibach blocks I will still have effectively lowered the rear .25" from stock. So should I get the 2wd or 4wd rear shocks? Are the leaf springs the same on the 2wd and 4wd models? Does 1/4" make that much of a difference when it comes to these shocks?

I noticed this Eibach 2wd rear shock says it can accommodate up to 1" of rear lift, which is where I'll be at, assuming the only other difference between 2wd and 4wd models is the rear block: https://www.stage3motorsports.com/e6...ear-shock.html

And this Eibach 4wd rear shock says it can accommodate an additional 1.5" of lift, which I assume would be on top of the factory rear blocks: https://www.stage3motorsports.com/e6...ear-shock.html

2. For the front, I plan on getting adjustable coilovers. Both Bilstein and Eibach offer front coilovers that are adjustable from 0 to 2" so I guess I should stick with the 4wd version of those since I haven't touched the front yet?

Or maybe I'm just overthinking this too much...

 

I removed my rear blocks and I emailed Eibach basically the same questions and they said use the 4X4 version of the shocks.

 

Did you use 4x4 shocks with no block or add their 1" block?

4x4 shocks with no block doesn't make any sense to me unless the leaf springs add some height. I've seen a few 4x4 F150s remove the blocks and go with a 2wd rear shock. Something about the travel or something of the shock. They are the same physical dimensions but the internals of the shock are setup differently.

 

I currently have 1/2" difference between the front and rear height with stock 4x4 rear blocks removed. Every truck is different so results may vary.

I'm thinking about going with this setup:

Rear: Eibach Pro-Truck Sport Shock: https://eibach.com/us/2895/E60-35-03...ck-sport-shock

Front: Eibach Pro-Truck Adjustable Sport Shock set at 1.4": https://eibach.com/us/1892/E60-35-03...ck-sport-shock

Eibach 2wd Pro-Truck 1" Lift Block (I removed the stock blocks*): https://eibach.com/us/2006/LB81-35-0...150-lift-block

*The only difference I can tell between the 2wd and 4x4 Eibach 1" lift blocks is that the 4x4 has longer ubolts to accommodate the stock blocks in addition to the Eibachs. 2wd F150s don't have rear lift blocks so they have shorter ubolts. I'm going with the 2wd version because I have removed the rear blocks and don't want the longer ubolts sticking out.

 

I dont see there being a real world difference between the stock block and the Eibach given they are only 1/4" different, but if you want to really fine tune heights I suppose it would be fine. My opinion is you save the money on the Eibach blocks, and just throw yours back in to see how the height works once you get the front shocks in and set to your desired height.

Regarding the shocks themselves (as a baseline): If you're running a 1-1.25" block, use the 4wd shocks. If you are running without any blocks, run 2wd shocks.

 

Solid advice. Thanks! I probably would stay with the stock blocks but I've already cut the ubolts down after I removed them and new ubolts cost $50 so why not spend a little more to drop it a quarter inch and have some nice & shiny Eibach blocks? The question is will 1/4" really make that much of a difference? With stock blocks I would probably set the front shocks to 2" as opposed to 1.4" which would give it a bit less rake. I would like to have a slight amount of rake but still mostly level. I'm thinking that would be better performance-wise and give it .05 more mpg lol

 

1/4” is not going to make enough of a difference. Stay with 4x4 length shocks. If you were going to leave the blocks out completely, then you should be using 2wd shocks as you’re the same exact hight as a 2wd.

 

FYI, the rear Eibach 2wd shocks are pretty firm,,, just say'in.

 

I just installed Rancho RS7000MT on my RWD 2017. I used the shocks for a 4x4 because I installed the 1.25" OEM block a few years back. They went in perfectly. RockAuto has them on closeout for $25 each right now. I replaced the Bilstein 5100 that had under 50k miles because 1 was leaking and both had rust all over them.

 

Not that this has any bearing on the performance of the shocks, but the finish on the Eibach is absolutely horrible. Mine have started to corrode after a few months. I may try to lightly sand them down and ceramic coat them to see if it helps any.