F250/350 OE spring swap question

[PSD POWER007]

I'm wanting to get rid of the saggy Excursion leafs on the front and rear. I'm not overly worried about a stiff ride or anything. The main thing that I'm wanting to know, what will be my best front and rear leaf combo? I have the Donahoe Racing 4.5" hanger lift with with 6" blocks on the rear. What I'm wanting is the right front and rear combo so that if there is any additional lift (which wont hurt my feelings )from the spring swap, it will be even front and rear with the hangers and blocks that I currently have. Also, what years would each leaf pack come off of? I was thinking of buying used springs unless it would be better to buy new ones. Just figured used ones would be much cheaper. Where would be the best place to get them? Etc.
It will be nice to do away with the rear end sag when towing. Plus I'm sure body roll will be less with stiffer front and rear leafs. Thanks guys!

 

[drchris1024]

See if this helps....

Front axle weights used are 4080, & D code springs for the PSD and 3680, & C code springs for the V-10


Application---Code---Capacity-----Rate----Travel --------- V-10 ----- PSD
--------------------------------- /spring---to Max Cap ----height ----height
--------------------------------------------------------- change --- change
Exc V8 ------- B ----- 4100 ----- 330 ----- 5.02 ---------- -0.25 --- -0.66
Exc V10 ------ C ----- 4300 ----- 350 ----- 5.01 ----------- 0.00 --- -0.37
Exc PSD ------ D ----- 4700 ----- 380 ----- 5.14 ---------- +0.33 ---- 0.00


F250/350 All springs are computer selected
Also the use of a rear sway bar and what size it is package dependant

Application---Code---Capacity-----Rate----Travel --------- V-10 ----- PSD
--------------------------------- /spring---to Max Cap ----height ----height
--------------------------------------------------------- change --- change
SD-250/350--- S -----4000 ----- 370 ------ 4.34 --------- +1.22 --- +0.88
-------------- T ----- 4400 ----- 390 ------ 4.63 --------- +1.42 --- +1.11
-------------- U ----- 4800 ----- 410 ------ 4.89 --------- +1.60 --- +1.32
-------------- V ----- 5200 ----- 430 ------ 5.13 --------- +1.77 --- +1.50

F450 -------- W ----- 5600 ----- 450 ------ 5.34 ---------- +2.77 --- +2.52
F550 &350/ DRW with Snow Plow prep Package
-------------- X----- 6000 ----- 470 ------ 5.54 ----------- +2.90 --- +2.68



as given to me by Bruce1954

 

[drchris1024]

Also Jason, since you already have 6" blocks on the back you'll prolly have use add-a-leaf in the back.

 

[PSD POWER007]

Chris, let me ask a dumb question here. Is this chart just front springs? It seems that the V-codes would be the only real up grade from what I've got. The extra 1.5" of lift isn't too bad either. If this chart is just front springs, if I put the V-codes on the front, an add-a-leaf wouldn't help lift the rear the extra 1.5" that the front would have. So there for, my ***** end would be dragging. If anything, I would rather the rear be slightly higher than the front. Just like she sits now.

 

[drchris1024]

No, not a dumb question. Yes, this is just for the front springs, and I added a 2" mini-spring to my F250. You can add-a-leaf to level to rear. I think we have A code and I think B codes will raise it some. I couldn't find how much.

 

[PSD POWER007]

Bruce 1954 doesn't have a chart for the rears with all of the same ratings?

 

[drchris1024]

How about these??? Springs

 

[PSD POWER007]

How about these??? Springs

What do you know about SuperSprings? SuperSprings Self-Adjusting Suspension Stabilizers

 

[Txangler]

I used w codes and pro comp add a leaf. Should have used x's in the front. just replaced rancho 9000's with the new 9000xl's and rebolted my sway bar back on. what a difference. will be towing at 27' TT soon so I will see how my set works towing.

Steve

 

[CHPMustang]

I used w codes and pro comp add a leaf. Should have used x's in the front. just replaced rancho 9000's with the new 9000xl's and rebolted my sway bar back on. what a difference. will be towing at 27' TT soon so I will see how my set works towing.

Steve

Steve where the heck ya been,lemme know how you like the XL's

Fill out your Signature so we can see what all new mods you been doing to the Excursion