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Can someone tell me where the numbers are stamped on original factory installed rear shocks? I have what I believe to be the original shocks on my '51 Style Line Deluxe and would like to confirm by checking the numbers. Problem is that I can't find any.Thanks for any help I can get.
Jeff
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If you can not find numbers or the name Delco they are replacement shocks. Would be VERY rare to find originals on 1951.
The number/letters were stamped into the main housing and very easy to see when shock was extended.
Gene Schneider
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Thanks for the reply. You said "...when the shocks were extended." So were the numbers up high above the welded on stone shields? Most shocks I've seen were stamped at the bottom just above the mounting bracket. Even replacement shocks from aftermarket sources are usually stamped. Maybe I'm looking in the wrong place. I'll look further.
Jeff
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Should show with shocks at normal length with every thing from a number, date code and Delco name.
Gene Schneider
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Spiral design on original rear shocks ?
1951 Chevy Styleline Deluxe 2 door sedan / purchased from second owner 6-19-2000.
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From what I have read on this discussion board and other places, spiral shocks started in 1952 and 1951 did not use them, I know very little about original Chevrolet production parts but I am trying to do my research. What makes me think that these are original are the stone guards spot welded on. I have also never seen replacement shocks with them. Thanks for all your help!
Jeff
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ChatMaster - 25,000
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Correct, sprials wre new for 1952.
The original shocks were black and had the welded on stone shields.
Gene Schneider
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And that is exactly what is on the car now. But as you said, there should be stampings on the body which I have not found.
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I can't remember what the Delco replacement shocks had back then but they looked just like the originals. Then Delco changed to the Pleasurizer type and were different including the color.
We used to replace those rear shocks quite often, even under warranty, because they made a cunk- clunk noise in cold weather and being attached to the floor it went through the entire car.
Gene Schneider
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Is there a possibility that the numbers were stamped on the body of the shock and then the stone guard was spot welded over the area where the numbers are? Every replacement shock I have ever seen, aftermarket or OEM, was stamped except for modern Delco shocks which may or may not have a sticker that says "Made in Mexico".
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Joined: Jul 2018
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Backyard Mechanic
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If you can not find numbers or the name Delco they are replacement shocks. Would be VERY rare to find originals on 1951.
The number/letters were stamped into the main housing and very easy to see when shock was extended. Update: I found the part numbers, "DELCO", and date codes on the shocks on the upper part under some undercoating. They are dated April and January of 1951! As I thought, these are the original shocks. Jeff
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Thank You for adding that fact. 
Gene Schneider
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I can't remember what the Delco replacement shocks had back then but they looked just like the originals. Then Delco changed to the Pleasurizer type and were different including the color.
We used to replace those rear shocks quite often, even under warranty, because they made a cunk- clunk noise in cold weather and being attached to the floor it went through the entire car. I thought that the Pleasurizer was a replacement line came out from Delco in the early to mid 70's. The Delco spiral design was used to the late 70's
John
1954 Belair Sport Coupe
1960 2 door Impala Hardtop 348/340HP 4spd
1962 2 door Impala Hardtop 409/409 4spd
1962 2 Door Biscayne Sedan 327/250 Auto
1977 Monza Mirage 305 4 Speed
1988 Celebrity Wagon
2018 GMC Sierra 2500 HD Diesel
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