Am I ONLY able to disable text vibration?

[Amplified]

Hey guys, I have a iPhone 3GS running 4.3.3, and I was wondering if I can only make text vibrations disabled on silent mode but keep it vibrating for calls. As I do receive many texts a day, I think if I disable it, my battery life would increase by a bit. I know on the android you can, but was wondering if I could on a Jailbroken iPhone 3Gs.

Thanks in advance.

[Amplified]

bump.

[Alan Jolin]

Maybe there's a jailbroken tweak, but in standard form to the best of my knowledge you can't.