If it's jerking back & forth, and not shaking/vibrating.... then it's most likely the lockup torque converter
Chevrolet Tahoe was created in 1992.
The 2013 Chevrolet Tahoe has 16 valves.
The 2008 Chevrolet Tahoe has 16 valves.
The 2006 Chevrolet Tahoe has 16 valves.
The 2004 Chevrolet Tahoe has 16 valves.
The 2014 Chevrolet Tahoe has 16 valves.
The 2009 Chevrolet Tahoe has 16 valves.
The 2001 Chevrolet Tahoe has 16 valves.
The 2011 Chevrolet Tahoe has 16 valves.
The 2007 Chevrolet Tahoe has 16 valves.
The 2003 Chevrolet Tahoe has 16 valves.
The 2004 Chevrolet Tahoe has a V8 engine.