We had a bad day at the track!!! I replaced the broken 8 3/4 rear end with a fab 9 so all brackets were changed and ladder bar adjustments. We lost .1 in our 60 ft. times. Car spun bad and hanled terrible. With the best 60 ft. of 1.40. We scaled the car last year and ended up 593# drivers rear and #674 pass. rear. This year we started at 610# d.r. and #655 p.r. I realize these were not exact but were heavier on pass. side as last year. Wondering if anyone has an idea of how to correct this problem. Thank you to all replies.