i'm looking to swap a 4l80e into my monte build.

its a 6.0 on a ls1 pcm

i see there seems to be a lot of variations of the 4l80e, and read that the pre 96 seem to be the best for fitting into older cars and to handle higher power levels.

then i also came across a note about it has to have "PWM" on the case behind the converter....is this true?

anything else i should look for?

i found an ad for one from a 98 2500 pickup...he is looking for 350 for the trans. i'm pretty much ready to jump for this one

thoughts?

 

The early model 4L80's comes with the beefier OD sprag and a better lubing system IMO. The "PWM" letters correspond to the 4L60E's and not relevant to the 4L80"s. $350 is not too bad but you can check the fluid so it does not look black or smell burnt.

 

Ok thanks. Its 96 and earlier for the stronger od sprag?

Is the gear selector the same as the 4L60e?

 

What shifter are you using, the stock monte? I had to make a bracket for my 80, I have a b&m shifter i used two of the brackets in the kit, a little cutting and welding and I had it,, the one they recommended would bind up.

 

not sure what shifter yet.

i was looking at something like the compushift tcm and thought about a g8 style shifter....where you can use the cable to drop p thru d and then the +/- if i wanted to manually shift the gears