I have a 95' f-250 psd sc, with 4" of lift and 315's on it, i just recently put traction bars on it, hoping to get rid of the axle hop. it didn't work. Any ideas?

 

Do you have lift blocks in the rear?

 

Yea, 5" blocks

 

There's your problem.

 

So i need lift springs?

 

How about telling us who made your traction bars?
How do the bars attach to the axle?

 

Shackle flip would work good. Sky manufacturing sells a nice kit

 

Tuff country made the bars, they attach to the top of the springs with the u-bolts

 

Does it hop this bad :
If you have bar on there that are mounted correctly you should have almost nill for hop. I have a feeling your mounting point is not secure, or is incorrect. Ladder bars should be rigid to the axle, not sure why yours are to the spring, mind posting up a pic?

 

You mean these traction bars?
Traction Bars - Tuff Country EZ-Ride

 

At least it's not a dodge. Then the box would be for broken or replacement parts :0

 

Those traction bars are not meant for a lift like you have. The upper pivot is SO FAR from the axle center line it's ridiculous, they will never work correctly and will always allow a lot of movement by the axle.

With a lifted truck like yours you need to grab the axle as to close to it's center line as possible, usually just below.
The Premium way is with a set of Caltracs, but I don't think that's the best bet with 5" blocks.
You can also buy or build a set of long bars from under the axle to the frame (about 6' long or so), mounted at the frame with a shackle.