No thats still not it. It is like a z only straight and about the length of a rocker, I 'm sure it is used as a brace for the rocker panel. lmc and chevy duty have pics of them, as well as impala bobs.
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Dean
edmonton,canada
a winter wonderland
2005 Chevrolet Avalanche LT
cold air intake, performance exhaust, Comp cams cam, jba shorty ceramic headers.
http://www.cardomain.com/ride/3090973