69 Charger - Torqueflite trouble

Me again...
We're going to pull that 727 out of the motorhome, to use the case - and rebuild using the tailshaft from the general lee tranny.
Gonna pull both of them later this afternoon - and get to work.
I'll keep you posted, and thank you for all your help.

It's very nice of you to share your advice and knowledge. Extremely helpful.
 
chadderbox74 said:
me again...
We're going to pull that 727 out of the motorhome, to use the case - and rebuild using the tailshaft from the general lee tranny.
Gonna pull both of them later this afternoon - and get to work.
I'll keep you posted, and thank you for all your help.

It's very nice of you to share your advice and knowledge. Extremely helpful.
Click to expand...

This is an excellent plan man!

Keep us in the loop as ya go through the process!

Make sure ya keep the planetary system and output shaft assembly together for each trans separate. There could be a slight difference in planetary carrier spline diameters vs. Output shaft spline diameters so ya don't wanna mix up those parts. The exact date/part number/vin/etc. That chrysler made this change is unclear and everyone has an "opinion" of what is definitive. The only thing that is definitive is actual measurement of the involved components! Scoutboy74 and I went through this same thing about six weeks ago and it created some major trickledown during the video shoot at one point! See this thread for what we're calling the "parts differences" spread over all the versions of these trannys, this info is not just IH-related as it affects all versions of the 727 across the board:

http://www.forums.IHPartsAmerica.co...t-407-tf727-variations-parts-differences.html

That's a great project ya got going. I was working as a mechanic inna chrysler/dodge/plymouth dealership while in college dealing with those cars new! I did many pdi operations on 'em right off the transporters, I ran a '68 road runner in drag racing sponsored by the dealer principal.

As an aside...if the engine in that motorhome donor is truly a motorhome application originally, it is a very hd motor and is considered part of the industrial/marine line, the block is much beefier (by nearly 100lbs.!!) the area around the motor mounts is somewhat different in casting dimension as compared to the passenger car version, though they do interchange. Lots of detail parts difference as to beef and materials internally also. I call that kinda stuff..."treasure" in the world of gearheads!
 
Ok -
we took the 2 tranny's, and made one. Used the case from the motorhome, and the tail piece from the charger.

Today we're putting it back in the car.

What fluid would you recommend?
 
Went with the "type f". Transmission working great - except the kickdown. Need to do some adjusting on it - as it wasn't "kicking down" at all.
 
Don't know if your charger project is a "period correct" deal or what. But if you are missing some of the original chrysler kickdown linkage components and aren't concerned with "original", then you simply can't beat the lokar-sourced cable kickdown stuff! Many of our IH folks have used those with great success and they truly are universal in nature as far as installation.

The oem kickdown setup on the '74/'75 IH picks-ups and travelalls are the worst conglomerations of crap ever designed, the lokar conversion corrects everything about those! If they had existed in 1968, we would put 'em on any 727-equipped chrysler performance product then in warranty as a definite upgrade!!
 
Nah - I'm not concerned with kepping everything stock or "period correct"
the lokar cable is definitely something I'm interested in - but for now, I'll use the 3 piece linkage that is on the car.

I did have a question though:

I used the original kickdown lever on the outside of the case. The one on the motorhome tranny was about 1/2 inch longer.
The motorhome tranny had also been recently rebuilt and has a shift kit.

----if I can't get the kickdon to engage by adjustment - would it be possible that I need switch to the longer kickdown lever?
 
chadderbox74 said:
nah - I'm not concerned with kepping everything stock or "period correct"
the lokar cable is definitely something I'm interested in - but for now, I'll use the 3 piece linkage that is on the car.

I did have a question though:

I used the original kickdown lever on the outside of the case. The one on the motorhome tranny was about 1/2 inch longer.
The motorhome tranny had also been recently rebuilt and has a shift kit.

----if I can't get the kickdon to engage by adjustment - would it be possible that I need switch to the longer kickdown lever?
Click to expand...

I haven't found variations in the kickdown lever on the shift tower...but that certainly doesn't mean I've seen 'em all! There are many variations of the "shift" lever though, that is to accommodate the myriad versions of shifter controls used with all these trannys, the lever for a Scout II floor shift is cable controlled and the strangest of all!.. The dodge motorhome shifter is also a dash-mounted shifter that used a cable instead of the "johnson rod" linkage used on most of the chrysler floor shifters, the column shifters were yet another variation.

In the case of your setup...the kickdown control system that is engine-mounted must match the lever length on the trans! Even just 1/4" difference in the leverage ratio is huge! So I'd use either all the parts from the motorhome or all the parts from the charger. Then adjust the system so that as soon as the throttle linkage moves off idle, the throttle pressure lever begins to move also. When the throttle is wot mechanically, the throttle pressure control lever must be all the way back and lightly against it's internal stop on the valve body.

Throttle lever actuation and throttle pressure activation should be a "coordinated movement" in a one-to-one ratio (within reason!).

If a shift kit was installed, there is a one-time adjustment for the pressure regulation system outside the valve body. Each type of shift kit is different in that respect, so I'd have to know exactly whose shift kit was installed and which version, in the case of transgo, there are three different kits currently and in earlier days there were two "different" kits they supplied!

Congrats on the rebuild, yawl have made real progress in a relatively short period of time for hobbyists with limited time to do this stuff!
 
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