On a 2003 Chevrolet Trailblazer ( yes )
Both the 4.2 litre six cylinder engine and the 5.3 litre V8 engine have a
timing CHAIN
timing chain timing chain
timing chain timing chain
It has a timing chain
timing CHAIN(s)
Chain
It has a chain ...
timing chain
The V6 has a timing CHAIN
chain
Chain
It has a timing chain
timing chain