TransGo TF3- tie back or run cable

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340Duster247

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hey guys just finished up rebuilding my 727, with an all new Frank Lupo 4200 stall convertor and installed a tf3 full manual from transgo. Now I know you can either run a kickdown cable and adjust for the pressure or just tie the lever back. What would you do?
This is a street/strip car Just driven on cruises or a local meetup.
 
Not absolutely positive here, but I believe the TF3 kit makes the throttle pressure useless so it doesn't matter what you do with it.
A cable would be completely pointless, but tying it back won't hurt anything and still be able to go back to automatic if ever needed or wanted.
I would just tie it back all the way and let it go at that.
 
hey guys just finished up rebuilding my 727, with an all new Frank Lupo 4200 stall convertor and installed a tf3 full manual from transgo. Now I know you can either run a kickdown cable and adjust for the pressure or just tie the lever back. What would you do?
This is a street/strip car Just driven on cruises or a local meetup.
Im a little behind I guess ..So what does the TF 3 do in order not to use the lever for shifting.
 
Im a little behind I guess ..So what does the TF 3 do in order not to use the lever for shifting.

It basically turns an automatic into a fluid drive manual trans, and in doing so locks the fluid pressure to a set maximum.
It has to be shifted for each gear instead of shifting on it's own.
When this is done you don't have any use for varying the shift points under different throttle loads because the driver does the shifting.
 
Not absolutely positive here, but I believe the TF3 kit makes the throttle pressure useless so it doesn't matter what you do with it.
A cable would be completely pointless, but tying it back won't hurt anything and still be able to go back to automatic if ever needed or wanted.
I would just tie it back all the way and let it go at that.
It’s been discussed on here before that with the transgo type full manual a cable or tied back must be used and confirms that it the instructions. It’s not like other types of full manuals.
Some say only tie back in full race car, but was hoping to hear if others had opinions.
 
It’s been discussed on here before that with the transgo type full manual a cable or tied back must be used and confirms that it the instructions. It’s not like other types of full manuals.
Some say only tie back in full race car, but was hoping to hear if others had opinions.

Sorry, I was under the impression the TF3 kit made the TP inactive all together.
 
It’s been discussed on here before that with the transgo type full manual a cable or tied back must be used and confirms that it the instructions. It’s not like other types of full manuals.
Some say only tie back in full race car, but was hoping to hear if others had opinions.
I did this last summer on a 904 that are built and tied it all the way back just like TrailBeast told me to and it worked perfect. You can always give it less pressure but you can't give it more. Not enough will definitely do more damage than too much. I actually hooked a choke cable up to it so I can bury it in the cockpit but ended up just keeping it all the way out in that was perfect and ended up just tie it back and getting rid of that.
 
Sorry, I was under the impression the TF3 kit made the TP inactive all together.
And a totally unrelated question since I have TrailBeast on the line here? I was over at a customer's house and he has his 2-speed Powerglide from the 68 El Camino and I grab the input shaft to check the play and it pulled out like an inch and a half!? That doesn't sound right at all!? What do you think?
 
ZERO need to do either. The TF3 makes the valve body a full manual valve body that does not require the throttle pressure linkage at ALL. It renders the throttle lever on the outside of the transmission totally useless, so it will not make a hill of beans difference where it is. Tied back or otherwise. I would just leave it alone.
 
And a totally unrelated question since I have TrailBeast on the line here? I was over at a customer's house and he has his 2-speed Powerglide from the 68 El Camino and I grab the input shaft to check the play and it pulled out like an inch and a half!? That doesn't sound right at all!? What do you think?

Completely normal. You probably should keep your hands off your friends shaft, though.
 
Sorry, I was under the impression the TF3 kit made the TP inactive all together.

Yeah that's correct. I've done several and never once seen in the instructions anything about it. I'd like to see the instructions in question, because the several I've seen had nothing about it in print.
 
Does this mod eliminate the engine braking effect when downshifting into 1st? Years ago My 727 had the Cheeta full manual and from secody to first with foot off gas pedal it was like going into neutral until you gave it gas.
 
And a totally unrelated question since I have TrailBeast on the line here? I was over at a customer's house and he has his 2-speed Powerglide from the 68 El Camino and I grab the input shaft to check the play and it pulled out like an inch and a half!? That doesn't sound right at all!? What do you think?

Sorry, I went and watched TV the rest of the evening.:D
 
Yeah that's correct. I've done several and never once seen in the instructions anything about it. I'd like to see the instructions in question, because the several I've seen had nothing about it in print.

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Could I trouble you to elaborate? I have a customer with a 68 El Camino and we're about to look at this transmission and I pulled on the shaft and it pulled out about an inch and a half and I was like oh crap I'm not sure if it's supposed to do that?
 
Does this mod eliminate the engine braking effect when downshifting into 1st? Years ago My 727 had the Cheeta full manual and from secody to first with foot off gas pedal it was like going into neutral until you gave it gas.
Im interested in your question also this would be good info for me.
 
Could I trouble you to elaborate? I have a customer with a 68 El Camino and we're about to look at this transmission and I pulled on the shaft and it pulled out about an inch and a half and I was like oh crap I'm not sure if it's supposed to do that?

Powerglides have craploads of endplay normally.
.030-.060 normally, and on the tighter side for race. (as tight as .015)
The thing about powerglides is that the input shaft endplay isn't real critical unless you are putting craploads of power through them.
1.5 inches, something might be damaged, or it may be just the shaft pulling out of the splines inside the trans.

I don't know much about glides.
 
Powerglides have craploads of endplay normally.
.030-.060 normally, and on the tighter side for race. (as tight as .015)
The thing about powerglides is that the input shaft endplay isn't real critical unless you are putting craploads of power through them.
1.5 inches, something might be damaged.

I don't know much about glides.
Taking the original posters pardon here knowing pretty much that he has his answer to his question?
Yes I was expecting 30 or 60 thousands or even like the one I put in my truck that felt like a hundred thousand or more! This was definitely a full inch and a half! I know nothing about Glides either. And Rusty Rat Rods answer of no isn't what I want to tell my customer for damn sure LOL I'll research everything as always and get some education. As always I appreciate at the very least your educated guess:thankyou:
 
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