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**Captainfab** · 02-16-2012, 12:22 AM

Comparing the numbers, I would say it is a '77-'82 Vette master. The A1 Cardone part number is #101423 for the '67-'76 unit, and #101749 for the '77-'82 unit. A brand new '77-'82 unit is #131749. I don't know what the difference is between the 2 year groups. They both show to have a 1.125" bore.

I do believe the 2 fitting sizes are 1/2" and 9/16"

02-16-2012, 12:22 AM	#39
Captainfab 60-66 Nut Join Date: Mar 2007 Location: Coeur d'Alene, Idaho Posts: 23,246	Re: Hydroboost Mounting Plates Comparing the numbers, I would say it is a '77-'82 Vette master. The A1 Cardone part number is #101423 for the '67-'76 unit, and #101749 for the '77-'82 unit. A brand new '77-'82 unit is #131749. I don't know what the difference is between the 2 year groups. They both show to have a 1.125" bore. I do believe the 2 fitting sizes are 1/2" and 9/16" __________________ Power Steering Box Adapter Plates For Sale HERE Power Brake Booster Adapter Brackets For Sale '63-'66 HERE and '67-'72 HERE and '60-'62 HERE and "60-'62 with clutch HERE Rear Disc Brake Brackets For Sale. Impala SS calipers HERE Camaro Calipers HERE D52 Calipers HERE 6 Lug HERE Hydroboost Mounting Plates HERE