Thanks clarkebre, I think I'm going to swap it out and see how it goes. Darth Lefty, it is very cheap. But the parts I have available are compatible, I'm hoping I can get away without changing the rear derailleur for a road derailleur. I only have 2 of them in my spare bin and one is very well used wore out emergency part and the other won't index shift (properly) with shimano sis, friction only.

Edit: they are both 7 speed.