Auto body repair & detailing: rear end collision, auto body repair, collision work

Question
how do make sure that rear end collision work in which the garage does job the correct way , such as straigtening as opposing to using filler
i had the transmission rebuilt. can this auto body repAIR damage transmission


Answer
99.9% of all straightening involves body filler which is completly acceptable.A good repair will be straight if you look down the side and all body lines are even.A rear end collision will not have anything to do with a transmission,unless it is a rear wheel drive vehicle and it was hit in the axle.