never seen such?.. 4 speed trans?
Racer
Joined: Jun 2018
Posts: 282
Likes: 139
From: NH
Thread Starter
Instructor
Joined: May 2023
Posts: 118
Likes: 14
i understand quite a bit with tha different 4 sps.. we bought, sold, traded and ran a lot 'em back in tha day.. but that "day" was never into tha late 70's or newer for a factory 4 speed car.. last factory 4 sp. i owned was a '67 c2 so i jus had never seen and/or heard of a steel case muncie which was tha only question i really had on this subject... tha PDF puts it all into prospective... thanks for all tha answers.
Melting Slicks
Joined: Aug 2011
Posts: 3,145
Likes: 263
Nothing strange about the car. The 1978-79 cars, when mated to an L-48 engine, came with an RPO code MM4 M20 76MM Saginaw transmission. The engines came with the auto-trans oil cooler line clip on the oil pan passenger side regardless of the engine going into a manual transmission car. Just like manual transmission cars with A/C coming with the long green wire for the automatic transmission car idle solenoid on the carburetor. Some of these factory choices are made for streamlining the assembly process and others are for saving money.
My 1978 is all matching numbers and dates including the engine and transmission. The oil pan had never been off until I replace the pan gasket and it has the auto lines clip.
My 1978 is all matching numbers and dates including the engine and transmission. The oil pan had never been off until I replace the pan gasket and it has the auto lines clip.
