This 2007 Hummer H3 4L60e Transmission was BURNT TO A CRISP!

Hello everyone, welcome back to another fsp transmissions video! Merry Christmas to all. I have been working on this video for a few weeks now. This Hummer H3 was dropped off at the shop recently and the transmission was completely destroyed. In this video we take out the hummer transmission, (4l60e) diagnose the issue, spend over $2000 in parts, and get this cherry back on the road!

This transmission failed for 2 reasons ONE due to towing a heavy trailer on long hauls and TWO the valve body had multiple cross leaks, so much so that some didnt even read on the SONNAX vacuum tester. The input shaft was chewed up on the outside from the convertor. This transmission was serviced once before (probably trying to save it) but it was too late to make a difference. i have never seen the reverse input clutch snap ring come off like that so if any of you guys have please let me know. (im thinking for over pressurized reverse circuit) but its up for speculation and i dont want to guide anyone in the wrong direction.

Complete Build List
WIT Full Rebuild Kit (seals, gaskets, filters, steels, frictions, etc)
DYNAMIC Stock Torque Convertor
Dual Cage Sprag, Molded Pistons, 3-4 Return Springs
.500 Transgo Boost Valve, Remanufactured Pump Stator, and Gear Body.
All new electronics, EPC, PMW, Manifold Pressure Switch, Wire Harness, Internal Speed Sensor, Shift Solenioids
Band, Remanufactured Reverse Input Drum, Bushings, NEW Separator Plate, Remanufactured SONNAX Valve Body with updates and upgrades
Remanufactured Forward Input Drum & Input Shaft with speed sensor reluctor ring.

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looking forward to 2025! Thank you all for such a great first year on Youtube!