i bent the tailshaft and basically ruined the tranny sunday at the track. thats what the chevy dealer said. i put it in there because i thought it was the rearend and found out the tranny was fried. what should i go with next? I might get it fixed under warranty but im not for sure yet till about 2days. but i was thinkin a FLT stage 4 4l60E? you guys think that will hold my setup? and how the hell did the tailshaft bend? ive had the nos for a year and this has never been a problem. any help or explanation would be appreciated. thanks michael

 

and i have the stock g80 locker and 4.10 gears

 

haha if you know me... you already know what im goin to say...
80E is my suggestion.. its the most cost efficient in my mind..

 

yea, i want to stick with the 60e tho. how the hell did tha damn tranny tailshaft bend? and what can i do to make sure the new one will not do that?

 

the output shaft bent? did the break the tail housing?

ive broke a few output shafts becasue of a harsh 1-2 shift.

 

Get a billet output shaft that costs basically as much as a low mile 4l80e LMFAO.

Look, the 4l60e is a fine transmission behind a 200 hp V6 as it was intended, but it's a joke behind a powerful v8 in a 4500-5500lb vehicle.

 

I would check your driveshaft angles, do you have any vibrations under acceleration or at highway speeds since you lowered it?

 

my last transmission had a hardened output shaft..... it broke too..

 

I say FLT level 5, you'll still have the good gearing and less parasitic loss than an 80E, and it should hold up behind your 5.3. The nitrous is a little concerning though...

 

never had any vibrations. and the 60e with the hd2 shift kit and 2nd sonnax servo and it did fine for a year with the nitrous and 2 years before that with just the motor. so i reckon the FLT level 4 or 5 would be ok. but i dont know? and idk what is actually broke the chevy dealer said the tailshaft was bent and or twisted and the whole tranny was junk. so idk