There have been several different manufacturers products installed by Catalina over the years. Every manufacturer uses a different bracket design and many of the brackets are hand made. As a result, it is unlikely a new vang's new bracket will fit your original bracket's hole pattern in your mast or boom.

We recommend using your original bracket, replacing only the vang itself. This eliminates any fastener alignment issues. Review the dimensions provided to see if this vang will work for your needs. If not, you can review our custom vang options for our part #F7961.

Boom vang travel (center to center of 3/8" Hex head fasteners in boom and mast tangs):
• Adjustment line fully in (two blocked), minimum length: ~56-1/4"
• Adjustment line fully out, maximum length: ~64"

Boom vang mast bracket:
• Height, overall: 5"
• Width, overall: about 4"
• Height between tabs (clearance for swivel): 3-1/4"
• Holes for vertical bolt: Cleared for 3/8" bolt
• Fasteners, holes: (8) Cleared for 1/4" screws
• Fastener spacing
    Vertically, lower and top hole to middle holes, center to center: 1-3/8"
    Vertically, middle hole to middle hole, center to center: 1-1/2"
    Horizontially, center to center: ~3-1/4"
• Tang, rotating:
     Thickness: 1/4"
     Thickness w/ shims: 1/2"
     Width: 1-1/2"
     Distance to center of hole (along centerline): 1-1/2"
     ID: cleared for 3/8" fastener
     OD of shims: ~1-1/4"
     Tube OD, Length: ~5/8", ~3-1/4"

Boom vang boom bracket:
• Bracket:
     Length: 5"     
     Width: 2-1/4"
     Fasteners, holes: (6) Cleared for 1/4" screws
     Fasteners, center to center: 2" fore and aft, ~1-5/8" side to side
• Tang:
     Thickness: 1/4"
     Thickness w/ shims: 9/16"
     Width: 1-1/2"    
     Distance to center of hole (along centerline): 1-3/4"
     ID: cleared for 3/8" fastener  
     OD of shims: ~1-1/4"

1) If retrofitting a rigid vang to an earlier boat, you will need to make sure that the boom does not rotate as that will fatigue the boom vang boom bracket. See replacement Gooseneck Complete, #K2134 below that includes a fixed pin that may be required to prevent the boom from rotating as part of your boom vang retrofit project.

2) This item does not conform to the shipping table in the Shopping Cart. Additional shipping must be calculated. When you place your order we always call with a shipping quote before billing your card. For a quote in advance, just call 800/959-7245.