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Master cylinder code list
I thought a list of the different master cylinder codes could be helpful. The codes appear in the 68 and newer Buick, Pontiac, and Chevrolet chassis service manuals. Anyone able to add the Oldsmobile codes (section 5 of the manual) or the 1970 Chevy?
I kept the list short and simple, so there may be more info in the service manual. Chevrolet 1968 AT - drum full-size BS - Drum, manual and power Camaro, Nova, Chevelle AU - metallic manual Camaro, Nova, Chevelle DC & PG - Corvette SA - power disc Chevelle & full-size AD - disc manual Camaro & disc manual & power Nova WT - power disc Camaro Chevrolet 1969 AT - drum full-size BS - Drum, manual and power Camaro, Nova, Chevelle DC & PG - Corvette TA - power disc full-size BA - power disc Chevelle US - power disc Camaro Nova Chevrolet 1970 EB - power disc Camaro BB - power disc Chevelle UT - power disc, Nova Pontiac 1968 HU 1" bore - drum power and manual, full-size CT 1" - drum power and manual, Firebird & Lemans FR 1 1/8" - disc power and manual, Firebird GD 1 1/8" - manual disc, Tempest A-body DW 1 1/8" - power disc, Tempest A-body Pontiac 1969 HU 1" - drum power and manual, full-size CT 1" - drum power and manual, Firebird, Tempest, & Grand Prix, GA 1 1/8" - power disc, Firebird EA 1 1/8" - power disc, Tempest & Grand Prix RA 1 1/8" - power disc, Pontiac (full-size) Pontiac 1970 EB - power disc Tempest & Grand Prix & Firebird RA - power disc Pontiac (full-size) Pontiac 1971 EB - power disc Firebird Buick 1968 & 1969 CT - drum power and manual DW - power disc, Skylark A-body LX - manual drum, LeSabre HU - power drum, LeSabre Wildcat Riviera YM - power disc, LeSabre Wildcat Riviera Buick 1970 CT - drum power and manual EA - power disc Skylark A-body LX - manual drum LeSabre HU - power drum LeSabre Wildcat Riviera RA - power disc LeSabre Wildcat Riviera Oldmobile HU - 67-69 power drum More info on Camaro brakes: http://www.camaros.org/suspen.shtml#Brakecomp 5460346 and 5469309 were the oval disc brake master cylinders. The 346 was used 67-68, 309 was 69 and later. 5470409 was the rectangular master that came out in 1970.
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Kurt S - CRG Last edited by Kurt S; 01-14-2024 at 03:12 AM. |
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