Confirm if your Sparco seat features side or bottom mounting fixtures, see the Sparco seat size chart. The Sparco HD series sidemounts feature multiple holes to better fine tune placement in the vehicle without sacrificing safety or style. They can be mounted with the bottom platform facing inward or outward.
The measurements are: 4 3/4" tall, the closet holes are 6" apart with each hole being 3/4" apart thereafter in each direction. The total bracket length is 15 1/4"
3.4 lbs per set and includes Qty-4 8x1.25 bolts