4L60 slipping when engine is warmed up

[Channeled 91]

OK... question for the people who have swapped to an 4L80. Do need to do anything special or is it an easy unbolt, drop out, install job? Also what is the difference between the two?

 

[df2x4]

OK... question for the people who have swapped to an 4L80. Do need to do anything special or is it an easy unbolt, drop out, install job? Also what is the difference between the two?

Shorter driveshaft, different flex plate, different converter. You'll probably need some sort of transmission controller as well considering your current trans isn't electronically controlled.

The main difference between the 60 and the 80 is strength. 80 is a little bit heavier and longer and has slightly different gear ratios.

Here's a link to my 4L60E to 4L80E swap thread I did on my red truck.

http://www.gmt400.com/threads/97-c1500-4l60e-to-4l80e-swap.38819/

 

[letitsnow]

Nothing worthwhile is ever easy.

 

[Channeled 91]

Nothing worthwhile is ever easy.

Very true.

 

[Channeled 91]

The transmission doesn't move the truck at all. I shift to different gears and nothing happens. I don t feel any small movement or anything.

 

[Supercharged111]

Shorter driveshaft, different flex plate, different converter. You'll probably need some sort of transmission controller as well considering your current trans isn't electronically controlled.

The main difference between the 60 and the 80 is strength. 80 is a little bit heavier and longer and has slightly different gear ratios.

Here's a link to my 4L60E to 4L80E swap thread I did on my red truck.

http://www.gmt400.com/threads/97-c1500-4l60e-to-4l80e-swap.38819/

I got away with my original flex plate in my 1500. Could only use 3 of the 6 torque converter bolts, but that's how the 60 was.

 

[df2x4]

I got away with my original flex plate in my 1500. Could only use 3 of the 6 torque converter bolts, but that's how the 60 was.

Yeah I know it's possible (I think you were the one who told me that in the thread) but I just didn't like the idea of only using three bolts.

 

[Supercharged111]

Yeah I know it's possible (I think you were the one who told me that in the thread) but I just didn't like the idea of only using three bolts.

Yeah me either, but I rounded the head off the last damn bolt holding the correct flex plate to the only 4L80 equipped truck in the whole junkyard.

 

[alpinecrick]

I have 2 trucks. One has a 4l80e, the other a 4l60e. If the 60e so much as hiccups, it'll be replaced with an 80e. No f*ing way I would remove that trans without replacing it with the 80e.

Of course, keeping the fluid BRIGHT RED in the 4L60E may deny you the opportunity to ever shoehorn a 4L80E in there....

 

[Supercharged111]

Of course, keeping the fluid BRIGHT RED in the 4L60E may deny you the opportunity to ever shoehorn a 4L80E in there....

I wouldn't go that far.