I got one from Phoenix transmission in Texas, very impressed with it. It is the 700r4 4x4 version with a few extra options, 0 issues with it. I am using the TV made ez kit from bowtie with it, I have an Edelbrock pro-flo efi.
x2 on Phoenix Transmission in Weatherford TX. They built the 4l60e in a 02 C/E T/A I used to have. The factory trans puked its guts @ 36,500k easy miles.... The rebuilt Phoenix version survived another 100k w/o any issues. I did comparison shopping for pricing (dealership; local builder down my street; & Phoenix Trans). Dealership quoted $3200 (stock replacement) + converter
if it needed one . Local shop quoted $2800-3200 for rebuild (depending on what failed) + converter. Phoenix quoted $2400 minimum average to $2800 depending on internal damage. The price included a Vette servo upgrade, shift kit, & my choice for converter stall. I figured, @ $2800 tops, that was better vs. just a stock rebuild/replacement.
My bill was $2480. I had a wrecker bring it to them on a Monday afternoon. They started on Tuesday. I picked it up on Wed @ lunch. The better servo, shift kit, & higher stall made huge impact in the driving experience! Their shop was spotless/well organized. If/when I find a used/core 4l80e, I will be bringing it to them for the rebuild.