I just purchased an old CMC narrow body speedster. The shocks that are currently on the car are worn out... They are KYB Gas-a-just. Is there a set of shocks that is recommended to use on these cars? Thank you! Greg

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Original Post

The KYB Gas shocks are stiff for a light replica.  Many recommend a cheap oil filed shock for road driving comfort - EMPI makes one as does OEM company Sachs/Boge. 

If you have a sporting bent, the KYB GR2 are not too harsh. I ran them for years with no issues and thought they were great.

That would depend on whether you have a link pin front spindle or a ball joint spindle.  You’ll have to get under there and find out (if you haven’t already).

Since it is a CMC we can assume that it sits on a VW donor chassis.  If that’s the case, you could look up the chassis VIN # to find out what year it is and then buy a set of oil-filled shocks for that year.  A set for a stock, VW sedan for thar year should be fine.

Is your car registered as a -- year VW? '65 and older is link/king pin front suspension (shocks will have horizontal bosses), '66 and newer is ball joint (shock top will have a vertical stud).

ball joint beam

Here's what a ball joint beam looks like. Disregard the writing- it's for something else. Sorry, don't have time to find a pic of a k/l pin beam.

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ALB posted:

Is your car registered as a -- year VW? '65 and older is link/king pin front suspension (shocks will have horizontal bosses), '66 and newer is ball joint (shock top will have a vertical stud).

ball joint beam

Here's what a ball joint beam looks like. Disregard the writing- it's for something else. Sorry, don't have time to find a pic of a k/l pin beam.

Link-Kingpin-and-Balljoint

You're better off making a visual check of what you have in the front as opposed to using the VIN # and checking the date of the chassis. My car is on a 1960 chassis but Vintage Speedsters built the car and converted the front suspension to ball joint and the rear to a swing axle.

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C36B83EE-21CD-476F-B749-2C12E476EFE9AD8F3B7E-CC66-43B5-8220-C90F6F60907FI have KYB shocks on my ‘56 CMC Speedster on a ‘71 VW pan but only have about 18,000 miles on it, so since I don’t have a comparison with other shocks they seem to be just fine when I drive. When I used to cross the Yolo Causeway Bridge going from Sacramento to San Francisco I used to feel harshly the 21 concrete expansion seams in my real 1960 Porsche 356B coupe, however, I can barely feel them at all when driving my CMC Speedy.

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Whoa.....   The guy radiused the cut-outs to clear his sway bar in the bumper mounts.

All I did was cut a square notch and welded some 1" X 1" square tubing back in (fortunately, the welds can't be seen).

I feel so inadequate about now......     

I took a few pictures of the suspension and I do have the Balljoint suspension, which makes sense since the body is on a 1969 pan. Thanks again for everyones help! Greg 

Alan Merklin posted:

Basic cheap oem type oil shocks, gas are too harsh.

 

@Alan Merklin   What spring rates are use upfront and rear with coilover / speedster

More information is needed to answer any question about spring rates and shocks.  The stock spring rates front and rear are 100#.  I race my car and have 200# in front and 250# in the rear.  It actually still rides well enough to drive on the street.  There are a million different combinations for the suspension.  You have to decide what you are going to use the car for first, then start tweaking the suspension.

I could see coil overs with adjustable shocks (like Koni or Bilstein) - especially if you have oversize wheels/tires.

Image result for koni coilovers

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