#creatorsearchinsights The GM 6L80 doesn’t usually fail overnight — it fails from heat, pressure loss, and worn hard parts. Common symptoms include slipping, harsh shifts, delayed engagement, or shudder under load. During a proper rebuild, key problem areas must be addressed: • Worn clutch packs and steels • Failing torque converter • Valve body wear and sticking valves • Weak pump components and pressure leaks If these issues aren’t corrected, the transmission may shift fine at first — then fai