'62 Lower Rear Shock Mount Washer

[Christopher R.]

Does this washer "cup" the bushing? Or, is it convex to the bushing?

[Edward J.]

Re: '62 Lower Rear Shock Mount Washer

Chris I believe it convex on the bushing, that's the way my 63 and 72 both are.

[Bruce B.]

Re: '62 Lower Rear Shock Mount Washer

The washer cups the bushing, in other words the concave side is against the bushing.

[Edward J.]

Re: '62 Lower Rear Shock Mount Washer

Bruce did the C1 do it differently? Generally when the cup faces the bushing it cuts into the rubber.

[Terry D.]

Re: '62 Lower Rear Shock Mount Washer

Doesn't do much good to face away from bushing, might as well use a flat washer then. It's like that on the shock, stabilizer links, etc.

[Bruce B.]

Re: '62 Lower Rear Shock Mount Washer

Terry,
I heard from a knowledgeable friend (other then you) that the cupped washer should face away from the bushing.
I'm not sure if that's correct but that would expand the bushing more so it might function better.
But all of my cars have the cup (concave side) facing the bushing as you describe.

We need a suspension engineer to answer this question.
Bruce B

[Larry C.]

Re: '62 Lower Rear Shock Mount Washer

If you will notice, the back-side washer on the shock mount plate faces "away" from the grommet so logic would say that the outside washer also faces away. That way the two washers actually push into the grommet and spread it out a bit.

Larry

[Joe L.]

Re: '62 Lower Rear Shock Mount Washer

All------


The lower rear retainer, GM #3714310, was used from 1956 to 1982 on Corvettes. For 1963-82 Corvettes the concave (i.e "cupped") side DEFINITELY is supposed to face OUTWARD. I cannot imagine the opposite orientation was used for 1956-62 but I can't say that with certainty.

[Edward B.]

Re: '62 Lower Rear Shock Mount Washer

It seems to defy all logic and sense of design, but the "cupped" (concave) side of the washer faces away from the rubber bushing.

[Joe L.]

Re: '62 Lower Rear Shock Mount Washer

It seems to defy all logic and sense of design, but the "cupped" (concave) side of the washer faces away from the rubber bushing.

Edward------


... and this is why there are many cars out there with the cup facing inwards. The first time that the shocks are replaced, the person doing the job just naturally installs them that way. Then, someone along the way assumes that's how they were originally installed.

[Dennis C.]

Re: '62 Lower Rear Shock Mount Washer

On the judging field, we look for the concave side of the washer to face out for 58 - 62's.

Dennis

[Terry D.]

Re: '62 Lower Rear Shock Mount Washer

Why are stabilizer kits and the top of the shocks designed the opposite? I'm confused!!

[Edward J.]

Re: '62 Lower Rear Shock Mount Washer

Terry, the rear lower shock mounts on the corvettes are a two part rubber bushing and I believe the cushions are equally compressed to the outer circumference of shocks enclosed metal housing when shock washer is faced the right direction. and when installed in the wrong the thin cupped washer will have a sharp edge that will cut into the rubber and not compress properly. This is my logic.

The upper shocks washers and stabilizer washers have a different contour and the edges of the washers will provide better compression on a open rubber.