Transmission kickdown linkage - with pictures.

BB_Mike · Jul 18, 2008

I have a BB402, Holley 3310 carb, in a 72 Malibu with a TH350 behind it. I just installed the throttle cable bracket, and it didn't fit like it was supposed to, so I added a small "extension" piece between it and the carb. My next task is the kickdown linkage, seen laying loose in the photo.
On top of the cab is the throttle bracket from the 307 that was in it.

So, should the kickdown do through the "other hole" in the bracket?
It needs to be pulled forward, right? How much is "forward", the last 1/4% of full throttle?

Any pictues would be great!!

DONTWANT2 · Jul 18, 2008

It need's to be connected low on the carb. so when you step into it, it pulls on the kickdown cable. looks like you need a different bracket on you intake to hold the kickdown cable.

Good Luck

BillsCamino · Jul 18, 2008

Throttle cables are a different P/N on a BB application compared to a SB one on that year Chevelle..

BB_Mike · Jul 18, 2008

What I bought was this:

http://www.yearone.com/serverfiles/fbshopmain2.asp?pid=WQ43&c=0&e=0&cat=0&hid=014AA48338&trk=

Because I read it on the internet here:
http://www.carcraft.com/projectbuild/116_9902_502_big_block_chevy_chevelle_engine_swap/photo_19.html

But intead of getting the OPG part seen here:
http://www.ss396.com/mm5/merchant.m...re_Code=chevellecamino&Product_Code=ADT-0014&Category_Code=ENGINEDETAILINGACCEL

I used my gift certificate at Year one to buy it.

I shouldn't even have bothered, I ran the red car with no bracket at all for 6+ years.

I wonder if I can shift the 2-3 on my own and it hold as long as I want it to?

Perhaps the 307 Malibu had a shorter throttle cable than all other models and that is my problem?

Tom Mobley · Jul 18, 2008

that magazine pic is funny, shows them attaching the throttle cable to a loose bolt hanging off the throttle lever where the kickdown cable goes. Classic magazine deal.

Tom Mobley · Jul 18, 2008

see this:

Tom Mobley · Jul 18, 2008

holy cow, that pic is huge.

or try this, this is what I have and am used to seeing. goes on the two back bolts of the manifold.

http://www.holley.com/20-45.asp

I never did like those ones that hang off one carb bolt.

BB_Mike · Jul 18, 2008

Shazam!

Tom Mobley · Jul 18, 2008

that pic that I linked to at Holley is misleading, it's reversed or upside down. It's thick so watch out for the bolts being short especially if you have aluminum heads.

65lkey · Jul 18, 2008

drain fluid from pan, remove linkage, go to napa get a 7/16" freeze plug and place in the whole. You really don"t need the kick down by the time it takes the tranny to shift you could have already shifted. I plugged mine I couldn't find a bracket. I love it, you just have to down shift your self

mr 4 speed · Jul 19, 2008

A nice trick way is to get an Olds or Buick TH350 kickdown cable that hook up to the gas pedal.

Tom Mobley · Jul 19, 2008

here's a couple pics of my daily driver, it's got an 800CFM Q-jet on a Performer RPM Q-jet manifold. I think the throttle is the stock one off a 307 2bbl. the kickdown cable is actually a TV cable for a 200R4, but it's very similar.

Tom Mobley · Jul 19, 2008

and another:

Transmission kickdown linkage - with pictures.

BB_Mike

DONTWANT2

BillsCamino

BB_Mike

Tom Mobley

Tom Mobley

Tom Mobley

BB_Mike

Tom Mobley

65lkey

mr 4 speed

Tom Mobley

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Tom Mobley

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