GotToGo,
In a period of 2 years, my brother replaced the starter twice (lifetime warranty) 2.6L manual tranny... When cold, this engine always cranks but never starts on 1st try, 2nd try is the charm... This April, a new larger than original Interstate battery was installed; once today with warm engine, it cranked so slow & did not start as though the battery was nearly dead... Afterwards, all was good again, weird...

1) Some starters need shims to make proper contact with flywheel gears
2) 1/0 welding cable I read is excellent for use on battery & starter circuits

No malice intended,
George