The Vermeer 2.875-in API Reg pin dirt bit sub adapter is used with Universal Housing part number 296351766 and Vermeer six-bolt pattern bits with .625-in bolts.
{"sku":"SKU|296268770","spec_notab_fits_on":"Fits On|D60x90, D60x90 S3, D80x100, D80x100 Series II","spec_notab_31_width":"Width|5.9 Inch","spec_notab_21_length":"Length|14.9 Inch","spec_notab_41_height":"Height|5.8 Inch","spec_notab_51_weight":"Weight|25 Pound","spec_notab_133_outside_diameter":"Outside Diameter|3.75 Inch","promoted_feature_entity_attribute":"Promoted Features|RDO Promise","part_cdk_id":"Part ID|14571152","shipping_group":"Shipping Group|ESTIMATED_SMALL_SIZE^VERMEER_DROP_SHIP_SURCHARGE","part_cdk_company":"Company|01","part_cdk_division":"Division|01","part_cdk_type_code":"Type Code|D","part_cdk_list_price":"List Price|978.55","part_cdk_part_class":"Part Class|B13","part_cdk_branch_code":"Branch Code|99","part_cdk_branch_name":"Branch Name|Fargo FSO","part_cdk_description":"CDK Description|UNIVERSAL HOUSI","part_cdk_part_number":"Part Number|296268770","part_cdk_part_source":"Part Source|1","part_cdk_part_status":"Part Status|A","part_cdk_vendor_code":"Vendor Code|100420","part_cdk_vendor_name":"Vendor Name|VERMEER MFG CO","part_cdk_product_line":"Product Line|VEXXXX","spec_notab_ground_type":"Ground Type|Sandy Soil,Loam,Soft Soil,Medium Soil,Hard Soil","spec_notab_bolt_pattern":"Bolt Pattern|6-hole - 5/8-in bolt","spec_notab_rear_connection":"Rear Connection|2.875-in (7.3-cm) API Reg"}