If that's the worst spot, I think you can round over the ragged inner edge of the break and run it for a while. You might have a slight engine vibration from balance issues. If you can afford the new one, it's a much better idea, though. Maybe a good used one can be found - should be $50-100. A new one is $130 at rockauto (I think you have a '95 3.5L)

Frank

'89 [color:"white"]G-Raider[color:"white"] [color:"black"]Supercharged 3.0L, MegaSquirt 2, lockup A/T, 2.5" exhaust, 172k, Cibie H4s/Oscar SCs, Hella Micro DE fogs, Cobra CB, Superwinch hubs, LSD rear/Aussie Locker front, Bilsteins, Lifeline AGM, Rust-Oleum