Uneven rear end after Fox 3.0 install

[BadNewsBronson]

Hey all, hope is well.

Quick question regarding suspension upgrade. Recently upgraded to Fox 3.0’s front and rear after 75k on my 2012 Gen 1. Had a shop install the front end, but I did the rear myself. There’s just about a 1 inch difference in height from the drivers side ( sits lower ) to the passenger side in the rear. I measured from the axle to bottom of fender and thats where I noticed the difference. I can also see a slight difference by looking at the back of the truck/truck bed head on. I measured the shocks from the bottom to top mounts and they seem even so I’m curious if I might have goofed when I used a bottle jack on the drivers side to push down the leaf spring when I installed the fox 3.0. No bottle jack was used on the passenger side. I’m still on stock leafs and it’s a given that they’re 10 years old and I will be eventually upgrading. Never towed, never had much in the rear, light off roading. Tire PSI equal all around. Kinda at a loss on why there would be the height difference so I’m thowing my hat into the forum, hoping I can get some advice.

Any help would be appreciated!

 

[P4SHOCAT]

Drivers side may sit lower because of the gas tank. If it is pretty full that's a lot of weight on that side of the truck.

 

[pat247]

Springs carry the weight of the truck not the shocks. You can offset the weight of the fuel tank by putting some weight in the bed on the passenger side. As you mentioned the springs are ten years old and may need to be rearched or replaced.

 

[Highwayman]

The fact you had to use leverage to get droop on that side tells me you've lost some arch on that pack....

 

[BadNewsBronson]

Drivers side may sit lower because of the gas tank. If it is pretty full that's a lot of weight on that side of the truck.

 

[BadNewsBronson]

That definitely crossed my mind. Just thought it was odd I never noticed it before and I’ve had the truck since 2015 lol. Maybe I was over analyzing it since I used the bottle jack on that end. Appreciate you bringing me back down to earth.

 

[BadNewsBronson]

The fact you had to use leverage to get droop on that side tells me you've lost some arch on that pack....

Springs carry the weight of the truck not the shocks. You can offset the weight of the fuel tank by putting some weight in the bed on the passenger side. As you mentioned the springs are ten years old and may need to be rearched or replaced.

I thought the same thing added with the fuel tank. It might be the combination of the two. Currently deciding on when to upgrade the leafs

 

[BadNewsBronson]

Anyone have any experience with deavers? I see the +2 seems to be to stock raptor height but the most ppl go with +3’s

 

[Gumby]

Anyone have any experience with deavers? I see the +2 seems to be to stock raptor height but the most ppl go with +3’s

I have the +2 seams to be close to stock. I do tow a boat to the lake. They seem to squat a little more than the stock ones did. I did the front springs at the same time so really hard to tell. +3 with a drop shackle might be better IDK.

 

[Canuck714]

Google "Raptor Lean" it is a well known thing.
You can try swapping leafs side to side to see if its an actual leaf sag issue, more than likely it has done this for a while and you just noticed after working on the suspension and being more aware now.
Raptor springs are soft... The fuel tank hold 250lbs of fuel, there is always a driver on that side, so over time the truck will lean.
Did you set the front coil-over pre-load the same on the Fox 3.0's? Sometimes a couple trurns on the Drivers front will help push some weight to the opposite side, but its marginal.

BTW, I am on Deaver +3 and after many off-road trips mine is doing Raptor Lean too.