I getting really pissed off with thes 4l60e I have gone trough 2 in one month. So maybe some one can tell me what happened. Okay I was driving as usual and and lit off the gas to brake. but for some reason the transmission didn't down shift so at the stop lite it was pushing my brakes hard. But i thought could be a fluke kept driving as I backed off the gas just a little it just completely stoped working I was bounching of the revlimiter and only going about half amile perhour. I get the car home and wake up the next morning and I have tranny fluid running down the driveway. . I have had a problem were it would not shift into 2nd at full trottle. WTF. If a person a gm is reading this I would like to tell you that your transmissions suck. My grandmother could build a better one. You would think out of all the designers that you would at least build a tranny that was worth a $#%! I shouls take it out and throw it threw your mainoffice window !!!!!!!!!!

 

I dont know much about them, but check out www.lt1dave.com He can build some a huge 4l60e. I have one of his behind my 383 Imp SS and it is holding up to 12 sec runs on a 4500 lb car...