shower faucet still dripping even after cartridge replacement

[cedar]

Hello all!

I have a tub faucet (2 handle) that's dripping a bit.
Plumbing supply identified it as delta, purchased replacement cartridges and replaced, still dripping.
Didn't replace the stems and seats behind.
Does anyone know what could still be causing the drip?

Thanks in advance!
Am posting pics of the old cartridge below.

 

[SHR]

The seats and springs are what wear out, not usually the cartridge. Replace the seats and springs to stop leaks.

 

[cedar]

The seats and springs are what wear out, not usually the cartridge. Replace the seats and springs to stop leaks.

Thanks a lot for the info SHR!
I'll do that.

 

[cedar]

Well I replaced the stems and springs and still the drip remains.

I'm at a loss, how could water still be getting thru to the downspout?
That's everything there is to replace!

 

[SHR]

Did you use Delta brand seats? Generic, including Danco or PlumbShop, often leak.

 

[cedar]

Purchased at plumbing supply house, but didn't see brand.
Would expect it to be good quality though.
FWIW the old seats didn't really look worn or pitted.

 

[PlumberMike]

your better off replacing the shower body with a moen