4L80e transmission in my son's 2000 Silverado 5.3L with segment swap using HPTuners. Trans tune is stock 80e. Has a brand new Circle D pro billet 3000rpm torque converter. My son and I built the transmission with many mods and upgrades. we used the CK Performance 4L80ECC/MSRK kit. instructions can be found at the following link to see all the modifications that entails. [ Ссылка ] .

We replaced all the bushings, and o-rings lips seals etc. All seemed to aircheck fine while building. We had to replace some parts from a core transmission. The input shaft and one of the drums. also, put a new sun gear in. We also reamed the AFL bore and installed an oversized valve. end plugs were replaced with o-ringed plugs. All electrics except the EPC were replaced.
The fluid level is good (calibrated dipstick), and has line pressure that should make it move I think. Any help would be appreciated. This video is with the harness unplugged, over 320 in reverse, but still mad slippage. Converter pull out was a little under 3/16, but with the smallest shims that came with the converter it was less than 1/8. So went shimless.

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