Transmission Help??
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Transmission Help??
I have an 04 SS silverado with a 4L65E in it. Its been rebuilt once just with upgraded clutches, heavy duty band, and shift kit. I recently switched superchargers and put a D1SC ProCharger on it. Now it slips going into 3rd gear. So if anybody with experience can help me out... do i rebuild my 65 again? or do i put a 4L80 in it? if 4L80, will they hold up stock? or do i have to do work to it? Ive heard that 4L80's rob a lot of power and cause trucks to not leave as hard. Any help on this topic would be much appreciated. Thanks guys!
#2
I have an 04 SS silverado with a 4L65E in it. Its been rebuilt once just with upgraded clutches, heavy duty band, and shift kit. I recently switched superchargers and put a D1SC ProCharger on it. Now it slips going into 3rd gear. So if anybody with experience can help me out... do i rebuild my 65 again? or do i put a 4L80 in it? if 4L80, will they hold up stock? or do i have to do work to it? Ive heard that 4L80's rob a lot of power and cause trucks to not leave as hard. Any help on this topic would be much appreciated. Thanks guys!
Here is a nice post about this: (blackgmc knows his stuff, also see atomic )
https://www.performancetrucks.net/fo...9/#post4980146
They seem to steal a little bit of power, but the big issue I've read about is the taller first gear. Better rear end gearing and a higher stall can overcome this.
I wouldn't bother with a 4l6* and high HP in a heavy truck.
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