The gearing may be bad, the tranny may be slipping, or the fluid and filter may simply need to be replaced. A bad filter and low or bad fluid can cause slipping or lack of shifting.
Most common were 4l60 & 4l80
Most common were 4l60 & 4l80
The 4L60 model was the most common. There were the heavier 4L80 and the old 400thm available.
4L80
17 bolt pan = 4L80 transmission 16 bolt pan = 4L60 transmission
Most of these had the 4L60 (700R4 updated) Some had the 4L80 (overdrive lock up variant of the old 400) if the diesel, Big block or towing or off road option packages were included
4l60 or a 4l80
it should be the 700r4 4 speed auto no 4l60 or 4l80
4L60-E or 4L80-E.
I have a 1998 Chevy Tahoe 2 wheel drive and I need to know if the transmission is a 4L60 or 4L80
do you mean a 4l60 out of a blazer and yes if it had a 4l80 in it already
If it's a 1/2 ton then it will be a 700R4. 3/4 ton will have a 4L60E.