Alright, as you can see in my sig, what i have done to my car...anyway i did get my aod rebuilt with heavy duty clutches and parts, shift kit, and 2400 custom stall. Now i usualy manual shift with it. When im 1st gear, i usually take it pretty high and then shift it up into 2nd.....now when shift it up, if i let off the gas alittle at the right time, it takes practice, and then hit the gas again, it will chirp the tires like a mother...somtiems even kick out... and i didnt even give it full throttle yet cause im breaking in the engine yet...But if like stay on the gas in 1st, and then shift up..it doest usually chirp? unless the rpms are really up there...its like weird...you have to do it the right way..my question is, how bad is that hurting the tranny, if you shift it up and then let of the gas and then hammer it again..its kinda like treating it like a clutch lol...you know what i mean...is that REAL bad for the tranny...its like catching it in gear i guess you would say..my trannys suppose to be freakin built up tho..so...i dunno...what do u guys think and feell about it..how many guys out there can chirp the **** outta the tires when shifting.