Slides over existing front cab mount. Sold a set for the driver and passenger side.

Measurement 12 1/2" x 4 3/8" x 4 1/4" 

applications:

1973-1986 Chevy & GMC pickup c/k series

1987-1991 Chevy & GMC pickup r/v series

1973-1991 Blazer & Jimmy full size

1973-1991 Suburban

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