Suspension - leveling ----advice appreciated

[Canazes9]

This is interesting, do you mean that the rear end lifts less when you raise the front end more? (ie. F: +2.125" = R: +0.75" vs. F: +1.5" = R: +1.0")

I never really measured my rear height too carefully but I remember after I threw in the SAWs I ended up with definitely 2"+ before (~2.25"-2.5"); but this was after I had already lifted my front ~2".

Yes - Exactly!

When you raise the front you shift the front to rear balance rearward. It isn't a huge amount, but it can be measured. The effect is the same in the front. This is the reason that adjusting coil overs can be such an aggravation.

Let's say you are too high w/ your coil over at 3.5" lift and you want to adjust it to 2.5". You make 2 complete turns on the collars (number made up) and drop it down to measure. 2 full turns = 0.5" drop and your are now at 3.0" lift in the front. You think "perfect - I will turn the coil overs another 2 full turns and it will be exactly 2.5" " When you make the adjustment and measure you are now reading 2.0" lift - what the hell?

By dropping the front 0.5" you have effectively shifted 50-100 pounds from the rear to the front (purely guessing here - somebody like [MENTION=66316]1engineer[/MENTION] that's better with math can calculate it, I'm sure). In the big picture 50-100 pounds is nothing, but anybody that's added a winch and/or plate bumper to their vehicle can tell you it is enough to slightly alter the lift of your vehicle.

There are plenty of people that have bought quality lift kits (like Icon) and then later griped that they didn't get the promised 2" lift out of the rear after they maxed out their front coil overs. The Icon rear coils provide 2" lift when the front coils are set to 2.5" (as they are shipped). Increase the lift in the front and the rear will drop...

David

 

[1engineer]

Yes - Exactly!

When you raise the front you shift the front to rear balance rearward. It isn't a huge amount, but it can be measured. The effect is the same in the front. This is the reason that adjusting coil overs can be such an aggravation.

Let's say you are too high w/ your coil over at 3.5" lift and you want to adjust it to 2.5". You make 2 complete turns on the collars (number made up) and drop it down to measure. 2 full turns = 0.5" drop and your are now at 3.0" lift in the front. You think "perfect - I will turn the coil overs another 2 full turns and it will be exactly 2.5" " When you make the adjustment and measure you are now reading 2.0" lift - what the hell?

By dropping the front 0.5" you have effectively shifted 50-100 pounds from the rear to the front (purely guessing here - somebody like [MENTION=66316]1engineer[/MENTION] that's better with math can calculate it, I'm sure). In the big picture 50-100 pounds is nothing, but anybody that's added a winch and/or plate bumper to their vehicle can tell you it is enough to slightly alter the lift of your vehicle.

There are plenty of people that have bought quality lift kits (like Icon) and then later griped that they didn't get the promised 2" lift out of the rear after they maxed out their front coil overs. The Icon rear coils provide 2" lift when the front coils are set to 2.5" (as they are shipped). Increase the lift in the front and the rear will drop...

David

You are doing fine David! This is exactly what happens though.

 

[Canazes9]

You are doing fine David! This is exactly what happens though.

Come on Greg!

We wanted a spreadsheet...

:brick:

David