99 Tahoe 5.7 with 4L60E

[CrazyW]

I have a 4L60E from a 99 4x4 Tahoe with a 5.7, and I have a 2002 4x4 Yukon with a 5.3 with a bad 4L60E. Will the 99 work in the 02 without electrical or mechanical modifications, and if not, what needs to be changed? I can't afford to buy another transmission

[carriedi]

you should contact a trans specialist like Novak conversions
https://www.novak-adapt.com/

but here is some background information on some of the changes from the 99 model and 2000 up
https://www.youtube.com/watch?v=An2tp8uo3Fs