Chevrolet passenger car Powerglides were all controlled by a steering column The Corvette extension contained bosses on the left-hand side that were drilled and tapped for mounting the Special cast bracket for transmission attachment to the Corvette's frame crossmember. Through 1961 is readily noticeable - the transmission tailshaft housing extension is different, and bolted to it is a The major difference between Corvette and non-Corvette for the old cast-iron Powerglides used from 1956 When it comes to externals, there are great differencesīetween Chevrolet passenger car and Corvette Powerglide usage. Primarily I'll deal with external observations. Primarily to assist you with visual identification, and on occasion I'll reference the transmission internal parts, but Pete must be credited with doing the major portion of the legwork and research for this article, inĭetermining what makes a Corvette Powerglide different than a passenger car version. I turned to my 1962 Chevrolet Parts Catalog, etc., and to my most knowledgeable source, Pete Vanish of EauĬlaire, Wisconsin. How could Iĭetermine if it was, or was not, a genuine Corvette transmission? Included among those parts was, you guessed it, aġ962 Powerglide that my brother-in-law had taken out of his 1962, and replaced with a four-speed. Also, at about the same time, I purchased a collection ofġ956-62 parts that filled the inside of a 15-foot travel trailer. With Powerglide (see Corvette Restorer Summer, 1985). My response: "I don't have the foggiest idea!"īut at the same time that I received the above inquiry, I purchased the infamous "Miss Piggy," a 1962 Corvette I have a '62 Powerglide, but how do I show him, or convince him, that it's not just a passenger car 070" steel platesġ956 TO 1967 Corvette and Chevrolet Powerglidesġ956-1967 CORVETTE POWERGLIDE TRANSMISSIONSĪ well-known Corvette parts dealer recently called and said, "I have a customer who needs a 1962 Corvette 070" steel clutch plates, all of the others have five (5).
The 1957 is the only PG transmission that has three (3). When ordering a 1953/1954 overhaul or rebuilding kit, specify if it isĪ Chevrolet car or a Corvette (The Corvette has a rear metal clad seal since it has an open driveline)ġ950-1955 PG's use the early internal lug style friction plates, 1956 and up uses the internal spline style friction plates. 070" thick and the frictions would be splined inside If it is apart, the steel clutch plates would all be It also would have an open driveline and no Letters about 3/8" high, it would decode as Dec. More info: If the L145 is on the bottom of the transmission in Remember, the year breaks around the end of August, early September. So K306 would be Nov, 30th, 1956, or a 1957 transmissionĪnd D47 would be Apr, 4th, 1957, also a 1957 transmission. One or two digits are from 1 to 31 and the last digit is from 0 "A" is January to "L" which is December, the next It is a three or fourĭigit number about 3/8" high, starting with a letter.
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