Well heres the the deal,We have decided to go with the AOD for consistancey at the track and with the 4.10s my sons running it was the only option, we have one being put together as we speak, my tranny guy says it will be bullit proof, he guarantees it, hes regular at the track and has done several of these,but he cant answer my questions on install hes a builder not an installer, and hes also a gm guy, but weve know him for years hes knows what hes doing when it comes to getting top performance out of your tranny, we are running the T-5 in there now ,So what are we gonna need, will the A9L COMP work with the AOD?,drive line?and how about my pedals can I leave them for now or do they have to be swaped,I know the harness is a little different but will a 4 cyl car harness work for the aod tranny? and how about the flex plate all the ones Im seeing in the mags are 164 tooth were running a 157 tooth with 50 oz imbalance, will the 164 tooth work?and please can you guys recomend a good shifter that will fit in the stock location, oh one other thing the drine line will this need to be swaped as well?Please help want to get this right the first time.:Track: :SNSign: