My 03-7.3L 4x2 is sagging again. Not only that but I think the springs are shot again. Does anyone know of an aftermarket vendor which sells HD coil springs for the PSD?

 

i think i remember someone putting 4x4 springs off a 05 or newer truck on theirs.

 

Bounce test...................bounced on it a few times and once I let go of it, it still moves up and down 3 or 4 times before it comes to a stop.

 

sounds like you might need some new shocks too

 

Yep... I would try the shocks first, too, unless you've already done that.

BTW... Shockwarehouse is running a special right now... buy 3 get one free. They're one of the site sponsors, so just click the link in the sponsor section up top. If their link doesn;t show up, just click the "refresh" button a time or two and it will cycle into view.

 

the discount code is ford5. it will give you an extra 5 percent off. if you order now you can get all 4 under 200 bucks.

 

Shocks are new. Bilsteins all around.

 

Something is up then. Sagging = spring problem, too much bouncing = shock problem.

OT... Did you get your leveling kit yet, Pete?

 

You can get a new set of custom springs made at your local spring shop for around $500. I'm getting ready to try this, since I've been fighting a similar issue with my front coils. Airlift air spring suspension for cars and trucks - Shockwarehouse.com

 

Do you think if I use a leveling kit it will help restore some spring rate?

 

I don't think a leveling lift would help any with your spring rate. It might be time to get a new set or like others have stated, get some custom springs made.