700R4 Vs. 4O80???

[SlicksInRain]

My 90 K5 has a 700R4 that needs replacing/rebuilding. I have an offer to aquire a 4O80 with transfer case.

I need to know if this will work and what the value is of the transmission 40K miles after a rebuild. I am guessing 300-400 bucks.

Any info you have would help.

Thanks.

 

[dfl701]

do you mean 4l80?

if so it will work but more than likely the transfer case wont since its from a 90s truck. it would be driver drop so you could sell it to offset some of the cost of getting the 4l80 to work

 

[SlicksInRain]

What would the cash value be on the tranny? Could I use a transfer case that was meant to go on a 90 onto this transmission?

 

[Keitha]

You will need a controller to run the 4L80e. The most simple would most likely be to just convert your ECM to a PCM such as the 14167060. You will also need the full wiring harness for the tranny. I also think that the crossmember is in a different location, but you will want to verify that.

good luck,

 

[manchildau65]

Strength-wise aren't these night and day in the stock form? Meaning that the 4L80E is meant for heavy duty hauling applications, designed for more torque/horsepower?

 

[cuervo]

My 91 is passenger side drop 4l80/241 combo.