DPont

Planning on preforming filter change and trans flush on my 3.0 LM2, Tahoe (30K for the 1st change) Drop pan, change filter and refill in level check side plug. Then follow steps below to flush. The Transmission Fluid Thermal Bypass Valve, fluid doesn't flow to cooler until above 160-170d. Hoping there is enough length to push hose on and hose clamp on Tranny connection coming from connection block to preform fluid exchange. see screen shot. Similar to the way he performed with a conversion block. In this video the Bypass is mounted to the Tranny Housing. https://youtu.be/SOyLso8IfWQ?t=743 Thermal bypass removal https://youtu.be/cSs5Y5KoUPI 1 Disconnect at Bypass Valve. Attach to tranny lines where they attach to bypass. 2 attach hose to line to trans cooler to pump fluid out 3 attach to line returning to transmission to pump fluid in with Vevor Transmission fluid pump 4 Perform exchange. 5 flush the trans cooler. Using Vevor Transmission fluid pump 6 reconnect cooler lines to bypass valve 7 reconnect tranny lines to bypass valve If anyone has GM service manuals diagrams of transmission line routing for 10L80 22 or later would be helpful.