Also we have Corvette Factory Photographs in our photo gallery, Original Magazine Advertisement Ads, & Vintage Television TV Commercial Videos for the Classic Chevrolet Corvette!
We also have Corvette Shop Service Repair Manuals in our Manuals Section as PDF Download at affordable prices.
It was in the years 1963 through 1974, that Muncie Four 4 Speed Transmission has been widely used, a lot of different GM models and engine combinations uses it. Muncie differs from the Borg-Warner in the bolt side cover that they used; Muncie uses a 7-bolt side cover while Borg Warner uses a 9-bolt side cover.
Wide ratio (M20) and the close-ratio (M-21) were the two different ratios that produce the Muncie 4-speeds. There was another ratio that was offered, the extra heavy duty close-ratio version (M-22), this was offered mostly on many of the big-block high-performance models. Both the engine size and the rear-axle ratio, has the command in the choice of a transmission. The Close-ratio transmissions were used by axle ratios of 3.73 and lower (numerically higher), on the other hand axle ratios of 3.55 and higher (numerically lower) use the wide-ratio transmissions. The year 1970 through 73, a lot of GM high-performance engines uses the M-22 Rock-Crusher¯, but as early as 1965, Corvettes already has the early version of the M-22.
The 3 types of transmissions has main internal differences, below are the list of parts to which they differ:
Or maybe the Corvette 1997-2002 C5 5.7L Parts Manual?