XR-71 Blower Shop blower snout coupler spacer. Coupler spacer is made from heat treated billet alum. that is counterbored six spots for six 3/8" bolts to attach to the blower gear then drilled and tapped 3/8"-24 in six spots to attach the coupler to the spacer.
Includes heat treated 3/8-24" mounting hardware. Coupler spacer is 2.375" (14-71) or 1.375" (6-71) thick and has a female 1.250" register on the rear as well as a male 1.250" register on the front to keep everything concentric on the front of the blower.
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