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Subject:   Excessive Idle Speed Model and Year: 1962 Passenger Cars Source: Chevrolet Technical Service Bulletin Bulletin No: DR #522 Section:   VII Date: February 14, 1962   Read More

Model Year: 1958 Corvette Subject: Corvette Speedometer Driven Gear Source: Chevrolet Service Bulletin Number: 47 Date: April 25, 1958 Zone: #41, Wichita, Kansas Due to an oversight, a duplication of color codes of speedometer... Read More

New 8-Speed Enables Quicker, More Efficient Corvette GM-designed, patented paddle-shift gearbox rivals dual-clutch performance 2014-08-20 DETROIT – The all-new, GM-developed Hydra-Matic 8L90 paddle-shift eight-speed automatic transmission... Read More

Source: Chevrolet Service News Date: December, 1957 Subject: Corvette 4-Speed Transmission - Harsh Shift Into Third Speed Some 1957 and 1958 Corvette four-speed transmissions have been built incorporating a third speed gear with 7 o cone... Read More

Subject: Conversion From 3-Speed to 4-Speed TransmissionModel and Year: 1956-1957 CorvetteSource: Chevrolet Service Bulletin, Zone #41 Wichita, KansasNumber: 108Date: October 8, 1957 A kit is now available containing the required control lever and... Read More

Source: Chevrolet Inter-Organization LetterDate: August 27, 1963By: H.A. BangsbergSubject: Propeller Shaft Balancing - 1963 Corvette - A, I, 63-25In cases where high speed vibration persists on 1963 Corvettes after the wheels and tires have been... Read More

Subject: Gear Block-Out and High Shifting EffortModel and Year: 1963 1000 Series and Corvette with Muncie 4-Speed TransmissionSource: Chevrolet Technical Service BulletinNumber: DR #611, Section VIIDate: August 7, 1963 TO:  ALL CHEVROLET DEALERS... Read More

Model Year: 1964Subject: 4-Speed Transmission Removal and ReinstallationSource: Chevrolet Service NewsNumber: Volume 36, Number 1, Page 5.Date: January 1964This article provides new service procedures recommended for removal and reinstallation of the... Read More

Source: Chevrolet Inter-Organization LetterDate: February 11, 1963To: Regional Service EngineersFrom: H.A. BangsbergSubject: High-Speed Warning Buzzer Deletion - 1963 Corvette w/ 340-360 HP Engine - A.I. 63-9The high-speed warning buzzer featured on... Read More

Model Year: 1974-1975Subject: Stripped Speedometer Driven Gear, 1974-1975 Corvette with 4-Spd. TransmissionSource: Chevrolet Dealer Service Technical BulletinNumber: 75-T-3Date: Jan. 17, 1975TO: ALL CHEVROLET DEALERSOn 1974 and 1975 Corvettes with 4... Read More