so I got a 03 Yukon Denali that was in a light crash I got the damage fixed and started to drive it ans noticed that the transmission had a 2-3 ans 3-4 flare (trans slips, engine revs between gears) took it to a transmission shop was told it needs a rebuild so I pulled it out and had it rebuilt ....it still had the flare. called the trans guy he told me to bring it over and he would look at it . he pulled it looked it over reinstalled and it still has the flare ANY IDEAS?