News:

Classified ads are not allowed on the forum.

Main Menu

Repro vs. NOS spiral shock tube

Started by Mike S, September 22, 2018, 07:01:45 PM

Previous topic - Next topic

Mike S

  I know some folks look for the correct numeric fonts to stamp a Julian date into a reproduction spiral shock, but I figure what's the point if you can easily spot a repro. Here is a picture of a reproduction Hugger Performance spiral shock next to a NOS (late 67 date) spiral shock to show the difference. As you can see, the NOS spiral in the tube is much wider and deeper compared to the reproduction.  That should make it easy to spot a real or a repro.

Mike
67 04B LOS SS/RS L35 Hardtop - Original w/UOIT
67 05B NOR SS/RS L35 Convertible - Restored

cam69aro

Eldon W 1969 z28 Black with born with driveline X77 38,000 miles-sold
2016 z06/z07 Corvette Black

ZLP955

Mike is there a lip around the bottom of the upper tube on the NOS shock? Seems to be a faint line there.
Tim in Australia.
1969 04A Van Nuys Z/28. Cortez Silver, Dark Blue interior, VE3, Z21, Z23, D55/U17, D80, flat hood.
Sold at Clippinger Chevrolet in Covina, CA.
AHRA Formula Stock at Lions Dragstrip, NHRA E/MP at Pomona Raceway

x66 714

Not all of the repros have the narrow shallow groove. The ones at Tamraz & Parts Place look closer.
According to their ads, Tamraz shocks are made in Taiwan & Parts Place shocks are made in the USA...Joe
See America's First, Chevrolet

1968 Z/28 Corvette Bronze. Black Hounds Tooth. 02E Los Angeles born 3/13/1968 pnt OO. Purchased March 1976
1969 SS396 Yellow/Yellow 08E Norwood born 8/28/1969 pnt 76E. Purchased April 1981

Mike S

Quote from: ZLP955 on September 23, 2018, 01:25:36 AM
Mike is there a lip around the bottom of the upper tube on the NOS shock? Seems to be a faint line there.
No lip. It must be the way the light is reflecting off the shock.

Mike
67 04B LOS SS/RS L35 Hardtop - Original w/UOIT
67 05B NOR SS/RS L35 Convertible - Restored

Mike S

Quote from: x66 714 on September 23, 2018, 07:08:47 AM
Not all of the repros have the narrow shallow groove. The ones at Tamraz & Parts Place look closer.
According to their ads, Tamraz shocks are made in Taiwan & Parts Place shocks are made in the USA...Joe
Maybe this would be a good comparison thread then of the different vendors. I thought Hugger Performance was the sole supplier.
We have Hugger Performance shocks pictured.
Anyone wish to take a picture of their repro shock to post for comparison?
You don't have to remove it from the car...just a closeup of the tube is good and who it was purchased from.

Mike
67 04B LOS SS/RS L35 Hardtop - Original w/UOIT
67 05B NOR SS/RS L35 Convertible - Restored

firstgenaddict

The guy who supplies the corvette shocks and other spirals uses NOS unstamped spirals and stamps the dates and the part numbers.
James
Collectin' Camaro's since "Only Rednecks drove them"
Current caretaker of 1971 LT1's - 11130 and 21783 Check out the Black 69 RS/Z28 45k mile Survivor and the Lemans Blue 69 Z 10D frame off...
https://plus.google.com/photos/112392262205377424364/albums?banner=pwa

Danzo


Mike S

 The Tamraz shocks look more like the NOS ones I have.
When I start on my other 67 resto I will look at these.

Mike
67 04B LOS SS/RS L35 Hardtop - Original w/UOIT
67 05B NOR SS/RS L35 Convertible - Restored

firstgenaddict

James
Collectin' Camaro's since "Only Rednecks drove them"
Current caretaker of 1971 LT1's - 11130 and 21783 Check out the Black 69 RS/Z28 45k mile Survivor and the Lemans Blue 69 Z 10D frame off...
https://plus.google.com/photos/112392262205377424364/albums?banner=pwa

cook_dw

Quote from: Mike S on September 23, 2018, 03:59:14 PM
Quote from: ZLP955 on September 23, 2018, 01:25:36 AM
Mike is there a lip around the bottom of the upper tube on the NOS shock? Seems to be a faint line there.
No lip. It must be the way the light is reflecting off the shock.

Mike

I know this was an little older post but wanted to give some insight.  The original & NOS spirals (rears) have a very small and slight "bell" shape to the lower portion of the upper section of the shock.  Here are a couple photos that will hopefully show that.  It is very subtle but is present.



Mike S

 I looked again at the NOS and unless I shine a light from the bottom up to look at shadows, the bell is very faint.
It is hard to feel it though.

Mike
67 04B LOS SS/RS L35 Hardtop - Original w/UOIT
67 05B NOR SS/RS L35 Convertible - Restored