Author Topic: TV cable bracket p/n  (Read 282 times)

Offline Mudsport96

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TV cable bracket p/n
« on: April 10, 2025, 04:07:47 AM »
Anyone happen to know a part number for a 200-4r/700r4 TV bracket? I've looked online and all I can find is aftermarket stuff. And that is all universal/adjustable. I would kinda like a solid no chance of moving bracket, like factory so there is no chance of it slipping out of adjustment and killing a transmission. I could have sworn I had one that bolted across the back 2 holes of the carb but can't seem to find it.
I don't have an od transmission yet, but plan on it within the next year.
I have throttle shafts from OD quadrajets, so I can swap one in for the correct geometry there.

Offline 73ss

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Re: TV cable bracket p/n
« Reply #1 on: April 10, 2025, 02:12:59 PM »
The type of bracket that bolted across the back 2 holes came on GM cars with the olds 307. TCI makes an exact copy of it, part # 376700. The chevy brackets bolted to one of the holes used to mount the coil on the old point systems. (The 2 bosses to mount the points coil were not deleted on the newer intakes.) and it also bolted down to a intake stud on the drivers side.
If you are running a small chevy, save yourself a ton of grief, Get a factory bracket. The olds & chevy OD throttle arms are different. I have found that the olds or TCI bracket is not compatible with a factory chevy throttle arm. I've had a 200-4 behind a BB chevy for 12 years now. Since chevy never produced a cable operated OD behind a BB (SB bracket wont bolt to BB intake) I fabbed up my own bracket by cutting & re-welding some SB brackets. I took measurements from the SB doner car and got it to work good. Using the olds/TCI bracket did not give me full pull on the cable at WOT using a factory OD chevy throttle arm. Hope this helps.

Offline Mudsport96

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Re: TV cable bracket p/n
« Reply #2 on: April 10, 2025, 02:47:53 PM »
Well dang, looks like I'll be searching for the small chevy bracket then. And just to clear up MY confusion. The old th350 brackets are different correct.

Offline 73ss

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Re: TV cable bracket p/n
« Reply #3 on: April 10, 2025, 04:19:27 PM »
I 'm not sure if the th-350 bracket is different. The carb throttle arm for a th-350 IS slightly different than a OD throttle arm, they look similar but have different pull rates.

Any SB, OD equipped car should have the correct bracket. Early, mid 80's trucks with the 700-R is a good source. 

Offline Mudsport96

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Re: TV cable bracket p/n
« Reply #4 on: April 11, 2025, 05:46:22 PM »
Found one from a LG4 (carbed 305) 700r4 camaro. 25ish bucks shipped. So hopefully, when indo find a 700 to rebuild, I can get a TV cable for a camaro and it will be close to right. I'll still throw a pressure gauge on the trans port, but it should be close.

Offline Mudsport96

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Re: TV cable bracket p/n
« Reply #5 on: April 18, 2025, 04:44:06 PM »
Well I got the LG4 305 bracket installed today.

And ran into the following things.
1. The Kickdown cable for the th350 now fits without the adapter I had made up for the old throttle/detent bracket... odd but cool.
2. The throttle cable is now 2 inches short of reaching the pin on the carb throttle arm. It was 1 inch short before, probably the difference between a inline 6 and the v8.

So now I'm looking into throttle cables. I may try one from the same style F body that the bracket came from as it stands to reason it would have the proper bracket to carb dimension that I need.

The 76 250 cable is 20 inches with a mounting length of 11 inches

The 76 v8 cable is 21 inches with a 12 inch mounting length that would have fixed my original problem.

The correct cable for the bracket I now have ( 1985LG4 Firebird/Camaro) is 22 inches which SHOULD give me the 2 inches I need....but the mounting length is 11.93 inches. Which is only .93 inches longer than the cable i have now.
Anyone know what they are referring to with mounted length?

Offline 73ss

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Re: TV cable bracket p/n
« Reply #6 on: April 19, 2025, 07:40:11 AM »
The bracket, Trans & TV cable we all plucked from a 86 Monte SS on my set-up.

I did have to switch throttle cables. My original cable had the rubber grommet mount and the ball stud type attachment. My car is a 73 chevelle. I got a later model type cable with the squeeze tab type mount from a 76 chevelle, worked out good.

If I were to guess I would try a V8 cable for your year car if it was originally inline 6.

Offline Mudsport96

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Re: TV cable bracket p/n
« Reply #7 on: April 19, 2025, 09:41:26 AM »
I had thought about that. But the original bracket the cable was one inch short so I had an extension.
The factory v8 cable is 1 inch longer. So that would have worked. But now it is 2 inches shy with the third gen f body bracket.
The cables are only 25 bucks. Maybe I'll order both the 76 v8 cable and the 84 f body cable and see which is better. Hate to do it that way though.
Thanks for the info.

Offline Mudsport96

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Re: TV cable bracket p/n
« Reply #8 on: April 19, 2025, 03:25:14 PM »
Well, on further investigation,  the same year Camaro as my Nova (76) uses a 22 inch throttle cable. The same one by part number as the Camaro/Firebird that the throttle bracket came from. Interesting.  Looks like I found the part I need.

I will update when I know more. Thanks for the help.