What is correct type of upper Kick Down rod?

[Hans R.]

Corvette Coupe 1966 S/N 6634 300HP PowerGlide
I'm trying to get the correct setup for the upper Kick Down Rod.
On the rear side of the Rod, I think it should be a Swivel/3711199 and a Clip/3711177.
I've seen two types of the upper Rod. One type as seen in AIM on M35/A8 and the other type
on M35/A9 (page with Linkage Adjustment Procedure). Which one is correct?
If it is the one on AIM M35/A9 I understand how to adjust the linkage.
If it is the one on AIM M35/A8 with a Stud/3904944, Clip/3904945 and Nut/3904946,
I do not understand how to adjust the linkage with the Stud running loose in
the opening in the front end of the Rod.

Can anyone help to sort this out!
Hans Ryden #868

[Russ S.]

Re: What is correct type of upper Kick Down rod?

Hans, M35 A8 is the correct one.

[Hans R.]

Re: What is correct type of upper Kick Down rod?

Thanks Russ.
Ok, so it is the Rod with an oval opening in the from end.
Do you know what parts are needed to connect the Rod with
the Carburetor Lever at the front end?

[Russ S.]

Re: What is correct type of upper Kick Down rod?

https://www.summitracing.com/parts/hly-20-38?seid=srese1&gclid=Cj0KCQiAmZDxBRDIARIsABnkbYRlDtsTBPMxHwZzi3iW3f91u9cft2KbHSHa7guFITUFMwaU3JiZ7W0aAlhHEALw_wcB

[Hans R.]

Re: What is correct type of upper Kick Down rod?

Thanks a lot Russ.
I bought the upper Rod from CorvetteCentral and the Hol 20-38 Throttle Lever Stud.
Unfortunately, the Stud is to thick (1/4 ") to fit in the Rod. I have checked most of the common
Corvette parts supplier and they all have a ball-type Stud, a Nut and a Star Washer (with no Clip).
For example:
https://www.corvettecentral.com/c2-6...el%26count%3d9

The Hol 20-38 has a straight Stud, a Nut, a Lock Washer and a Clip.
Check this:

https://www.summitracing.com/int/parts/hly-20-38

The AIM specify a Stud, a Nut and a Clip so it appears none of the above kits
are correct according to AIM.

Russ, what's you experience on this?

[Russ S.]

Re: What is correct type of upper Kick Down rod?

Hans, Old age and dementia have over come me. Ignore all my posts above as I have confused my 66 vette which I no longer own with my sons 71 holly equipped mopar. It is very confusing tho as Long Island corvette lists three different top linkage rods for 66 applications some of which are as I described above and also match the AIM and some of which do not match the AIM or the parts listed by Corvette Central. If you reference Long Island parts catalog section 58, it will show these three different rods. the one correct for the 300 HP is item number 58-09B used with 58-09G and the clip shown.

[Russ S.]

Re: What is correct type of upper Kick Down rod?

This is one of the three types of top kick down rods used for 66 but not the correct one for the 300 HP. Sorry for the confusion.

Hans, M35 A8 is the correct one.

[Hans R.]

Re: What is correct type of upper Kick Down rod?

Russ, I read it a bit differently; The 58-09B is for 63-65 and the 58-09G is for 63-67 but it is the rear Swivel and Clip.
The Upper Kick Down Rod for my 66 is 58-09C 66-67 and the front Swivel and Stud is 58-09H 66-67.
I have ordered the equivalent front Swivel and Stud from CorvetteCentral #532084 and hopefully it will fit with the
Upper Rod I already ordered

[Joe L.]

Re: What is correct type of upper Kick Down rod?

Russ, I read it a bit differently; The 58-09B is for 63-65 and the 58-09G is for 63-67 but it is the rear Swivel and Clip.
The Upper Kick Down Rod for my 66 is 58-09C 66-67 and the front Swivel and Stud is 58-09H 66-67.
I have ordered the equivalent front Swivel and Stud from CorvetteCentral #532084 and hopefully it will fit with the
Upper Rod I already ordered

Hans-------


I can tell you this much: stud GM #3904944 was never available from GM in SERVICE. In addition, I can find no other part numbered stud which GM ever cataloged in SERVICE for your specific application.

[Hans R.]

Re: What is correct type of upper Kick Down rod?

Thanks Joe.
Thanks Russ. I've got the 6 pictures now! I can see that the upper Kick Down Rod is not of the slotted type
like listed in AIM and sold by the Corvette Suppliers. And it connects to the Carburetor Lever with a Swivel.
So we're back to my original question; What type of Rod is actually correct for my application and what type
of connection to the Carburetor Level, is it the slotted type Rod with a Ball type Stud or the non-slotted Rod with a Swivel???

Btw, my current setup looks identical to what you can see in the pictures.

[Joe L.]

Re: What is correct type of upper Kick Down rod?

Thanks Joe.
Thanks Russ. I've got the 6 pictures now! I can see that the upper Kick Down Rod is not of the slotted type
like listed in AIM and sold by the Corvette Suppliers. And it connects to the Carburetor Lever with a Swivel.
So we're back to my original question; What type of Rod is actually correct for my application and what type
of connection to the Carburetor Level, is it the slotted type Rod with a Ball type Stud or the non-slotted Rod with a Swivel???

Btw, my current setup looks identical to what you can see in the pictures.

Hans------


It sounds to me like you might have the 1965 style assembly. This assembly uses the GM #3711199 swivel at the front of a straight rod of either GM #3830509 or GM #3830319. The rod attaches to the rear "bellcrank" rod with some sort of attached stud + lockwasher and nut. Is this car a very early 1966?

[Hans R.]

Re: What is correct type of upper Kick Down rod?

Joe,

The car i S/N 6634 built in November 23, 1965

[Hans R.]

Re: What is correct type of upper Kick Down rod?

Joe, I agree, It appears to be the -65 Linkage setup.

Thanks Joe and Russ for all the help.

[Richard G.]

Re: What is correct type of upper Kick Down rod?

There is a kick down set up for sale in the classified section of this NCRS site.
Search; NOS 1963-1967 power-glide bell crank
I have no affiliation with the seller. Good pictures are included.

[Hans R.]

Re: What is correct type of upper Kick Down rod?

There is a kick down set up for sale in the classified section of this NCRS site.
Search; NOS 1963-1967 power-glide bell crank
I have no affiliation with the seller. Good pictures are included.

Hi Richard,
Thanks a lot for this reminder, but I have the correct Bell Crank and lower KD Rod.
My concern was upper Rod and fittings which we now have sorted out.