shock abosorbers

[Michael S.]

During the 1973 build I understand the optional suspension was the "gymkhana" suspension. A new name for the old F-41. Did the "gymkahna" suspension come equipped with the old "F-41" style shock absorber?

Second, shock abosrber number 1940607, is this an F-41 shock or a gymkahna suspension shock? I can't seem to find a reference to the number.

Mike Strinich
#11202

[Joe L.]

Re: shock abosorbers

Mike-----

For 1973, there was no "gymkhana suspension", per se. What there was the Z-07 HD suspension and brake package. This included the F-41 SUSPENSION components + the J-56 HD brake package. These options were not available seperately for 1973, only as part of the Z-07 "package".

The shocks used for the above-referenced package were, basically, the same as those used for F-41 during the 66-72 period. However, the part numbers for the shocks changed over the years while the configuration remained pretty much unchanged FROM LATE 1969 onward. The 66-E69 HD shocks were larger in OD than the late 1969 onward HD shocks. Also, sometime AROUND 1973, the configuration of the upper portion of the REAR HD shocks changed to the smaller "coullee hat" configuration from the larger used earlier.

"1940607" was NEVER the part number for any shock absorber. So, I'm not surprised that you can't find any reference to it.

[Michael S.]

Re: shock abosorbers

Joe,

Thanks for the information. The 1940607 number is stamped on the shock absorber. I will again check to make sure that I have not made a mistake. Dates on these shocks are 252 78 it appears. I do not yet have the numbers on the front shocks.

Mike

[Rick A.]

Re: shock abosorbers

the #'s you listed indicate the shocks are from the 252nd day of 1978

[Michael S.]

Re: shock abosorbers

Thanks Rick, I was aware of the date being 1978. The shock number is actually 4940607. It is incorrectly listed by me in my initial post.

Can anyone find the 4940607 number and tell me if this is an F-41, gymkahna or Z07 shock. I am sure it is a service date shock.

Mike

[Rick A.]

Re: shock abosorbers

Mike,

Sorry, my parts catalogue only goes through the 1975 model year and I don't show a listing for that number

[Joe L.]

Re: shock abosorbers

Joe-----

Well, so it's 4940607? That's different. That number IS a shock part number.

GM #4940607 is the part number for the PRODUCTION HD rear shock absorber used for F-41, FE-7 and Z-07 from 1972 through 1974. It may have been used for late 1971 and early 1975, too.

GM #4940607 was also available in SERVICE, but not under that part number. In SERVICE, it is known as GM #4940459. That is the number on the BOX which includes 1 GM #4940607 shock absorber + 1 installation hardware kit. In SERVICE, this shock is applicable to all 1963-81 Corvettes with HD suspension, be it F-40, F-41, Z-07, or FE-7. First available in SERVICE in 1970 when it replaced GM #3166560, it's still available to this very day.

[Craig S.]

Re: shock abosorbers

Joe - is this the P/N for the F41 rear shock that is labeled Reactec? I want to order the F41 Rear and Front shocks for my 66. I ordered a set for my 67 a couple years ago based on the numbers you sent me, but I have them boxed and stored and I can't find the email any more. I also recall posts recently that Reactec shocks have been discontinued, or, is that just the non F41 versions? Anyway, I am gussing that 4940459 was the rear shock part I ordered, what was the corresponding front shock. I want to order them before they go away for good......thx, Craig

[Joe L.]

Re: shock abosorbers

Craig-----

This is not the part number for any shock labeled "Reactec". This is a GM SERVICE shock part number. I'm sure it's the same as the one you ordered the last time.

[Craig S.]

Re: shock abosorbers

Thx Joe - what are the front F41 shock P/N so I can order the set...I lost the note and the other set is packed away...thx!....Craig

[Joe L.]

Re: shock abosorbers

Craig-----

The F-41 fronts are discontinued and are replaced by the "Road Response" series shocks which are, basically, a "one-size-fits-all" sort of thing.

[Craig S.]

Re: shock abosorbers

Thx Joe - guess I missed out on that one....at least I have one set of fronts. Thx!....Craig