'65 transmission stamp code on the pan? [Archive] - Chevelle Tech

: '65 transmission stamp code on the pan?


highlandlake
Dec 23rd, 06, 9:05 PM
Hello all,

On a newly acquired '65 SS I'm going about locating all the numbers and making sure everything adds up.
Here is a code that is stamped on the transmission Pan 'C0624N'. It is located on the passenger rear side of the pan.
Call me paranoid, but the pan looks far too new to be original. It's just too shiny compared to the condition of the rest of the tranny. The date (June 24) matches the engine stamp date to the day. The car was put into service on July 14th according to the POP. The first owner lived near the Framingham plant but wow that seems to be an awful tight timeline. Does the font on the pan compare to other codes you've seen? Is this a typical location?
Here's a link to a photo: http://i27.photobucket.com/albums/c187/highlandlake/transmissioncode.jpg

Thanks for any information or reply.
Tom

mr
Dec 25th, 06, 10:22 AM
On a newly acquired '65 SS I'm going about locating all the numbers and making sure everything adds up.
Here is a code that is stamped on the transmission Pan 'C0624N'. It is located on the passenger rear side of the pan.
Here's a link to a photo: http://i27.photobucket.com/albums/c187/highlandlake/transmissioncode.jpg

What kind of automatic transmission, are we talking about, "powerglide or turbo 400" ????........Don.

http://bestsmileys.com/computer1/18.gif

highlandlake
Dec 25th, 06, 8:12 PM
Good point - it's a Powerglide bolted to a 230-6 banger.

Wish it was the TH400..............and an engine big enough to make the front springs earn their pay :)

highlandlake
Dec 29th, 06, 9:23 AM
Any thoughts, observations or suggestions? Tom

mr
Dec 30th, 06, 8:35 AM
On a newly acquired '65 SS I'm going about locating all the numbers and making sure everything adds up.
Here is a code that is stamped on the transmission Pan 'C0624N'. It is located on the passenger rear side of the pan.
The date (June 24) matches the engine stamp date to the day. The car was put into service on July 14th according to the POP. The first owner lived near the Framingham plant but wow that seems to be an awful tight timeline.
Here's a link to a photo: http://i27.photobucket.com/albums/c187/highlandlake/transmissioncode.jpg

According to "Chevrolet by the numbers 1965-69", the [C] code means it originally came from the Cleveland plant, which only supplied the 230 L6 and 283 V8 Powerglide transmissions........
All the other powerglide's, including the 327, 396, 409, 427 V8's and the Corvette, aluminum powerglide transmissions came from the [T] Toledo plant.........

Is your powerglide transmission, "aluminum" ????.... Is it "water cooled" or "air cooled" ????...
Apparently Corvette's and L4/L6 Chevy2's are air cooled............
Most others have water lines to the radiator, according to this book...........Don.

highlandlake
Dec 30th, 06, 10:43 AM
This one is water cooled, and appears to be steel. Casting # 3863192.
Does the stamp on the pan look normal? (location, font, and a date that matches the engine to the day) If this trans. was built in Cleveland on June 24th, and the car was sold and in service on July 14th, is the timing too coincidental or even possible?
I suppose I'm trying to verify my car is a real numbers-match, and not a fake.
Thanks for any thoughts on this.
Tom

mr
Dec 30th, 06, 3:42 PM
This one is water cooled, and appears to be steel. Casting # 3863192.

Does the stamp on the pan look normal? (location, and a date that matches the engine to the day)

If this trans. was built in Cleveland on June 24th, and the car was sold and in service on July 14th, is the timing too coincidental or even possible?

I suppose I'm trying to verify my car is a real numbers-match, and not a fake.

This book claims, aluminum powerglide casting # 3863192, to be a 1965-1968 model w/1.82:1 low gear..

With the professional looking stamp, I'd say that's not the problem..........even thou, you could change the original transmission pan, to another, non-original powerglide transmission..

The 20 days between engine/transmission build date and car sale date, seems ok, to me.........
It's not too far, from Cleveland,Ohio or Flint, Mich. to Framingham, Mass........
plus, the powerglide was the only "automatic transmission" being used in all makes/models of GM vehicles...
Like the engine plants, they were probably, making thousands of transmissions, daily.........
Tonawanda and Flint V-8 each made around 5500 engines per day (one every twelve seconds)

The only way to know, if that was exactly, the original transmission, would be, if they had stamped a "confidential vin#", like they did starting in the late 1960's on engines and transmissions.........Don.