4l60E question

[mattcrp1]

So as I gather knowledge and parts for my 76 swap I am looking at transmissions to go with a 2000 on up 5.3l swap. The eaierler style one piece bell housing 4l60e are eiser to find and less money than the two piece and I understand that the shift solinoids will need to be changed due to the pulse width modulation differences. But are thier any real differences or disadvantages to the earlier transmissions? thanks in advance

Matt