1st time 727 trans build with pix

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mike1965

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OK so have gathered all the parts to upgrade my 727 , here's a list of the upgraded parts I used to make this bullet proof hopefully .

- TCS 727 Sportsman Support Kit >> http://www.tcsproducts.com/products/product/556/

- A&A 727 6-Bolt Ultimate Sprag (1966-1989) >> http://www.aandatrans.com/Products/727-6-Bolt-Ultimate-Sprag-(1966-1989)__K22961US-6.aspx

- TCS Steel billet loaded drum with bigger piston

- A&A Steel 5 pinion planetary

- A&A 727 A518 A618 47RE 48RE Heavy Duty Band Strut

- A&A Super 2 1/4'' solid super band


We also plugged the vent hole in the pump and drilled a new vent hole near the back of the case above the sprag and drilled the case for the trans brake plug .

I machined the pump support for better oiling as recommended.

I disassembled the trans and cleaned it then started to put it back together I have only done to where the pictures stop , I have the pump placed in to the case with the paper gasket only and tomorrow I will measure my end play in the input shaft and I will set it to .020 - .025 after I have set that I will take the pump and put the rubber O ring on and install the pump permanently .

This is my first trans I have ever done I have built many engine's but tranny's just scared the hell outta me and I have to tell you if this thing works LOL I will do all my tranny's , I will post more pix as soon as I get more done on this.

Thanks for looking


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are you assembling it dry?

I hope not. I did my 727 for my GTS recently. Also my first auto. Not in the car yet, but we'll see. Pretty easy and straight forward if you take your time.
 
Nice photo documertary Mike.
I hope you didn't forget the low/reverse band strut, only they can be a bit fiddely to get in with the entire gear train in place.

I agree with Fred. Dry stack the clutch plates just to measure clearance, Then take them out & immerse them in ATF for at least a half an hour.

Good Job man. Keep us posted.
Cheers. Gaz
 
I did not assy. it dry , I didn't take pix when I was measuring and I did soak and use grease while assy.

I set the front drum clutch assy. at .071 and the rear drum clutch assy. at .031 and today I will set the input shaft endplay .

I didn't put the rear strut in yet I am waiting on the aftermarket low band strut and anchor to arrive , i'll get it in lol I still have to do the servo's and the Accumulator and the valve body

Mike
 
nice job you are doing and some excellent parts. did you use Teflon rings on the pump support. I also hope you got the front drum engage with the sunshell properly, the pic show it isn't.
 
nice job you are doing and some excellent parts. did you use Teflon rings on the pump support. I also hope you got the front drum engage with the sunshell properly, the pic show it isn't.


Bob I did use the Teflon rings and I did get the front drum engaged properly I hope lol
 
assemble the forward/w input and direct clutch drum as a set, then drop into the planetary assembly. The tabs on the direct should align almost flush with the slots in the sun shell. Standing it up vertical makes it easier, IMO.
 
assemble the forward/w input and direct clutch drum as a set, then drop into the planetary assembly. The tabs on the direct should align almost flush with the slots in the sun shell. Standing it up vertical makes it easier, IMO.


Thanks Fred good to know
 
Here are some pix of the rear drum as I put it together
















Put the rear band strut in and the servo's in





 
Nice clean work Mike. Judging by the components you have chosen the trans is going to see some strip time. I strongly advise the use of a billet aluminum rear servo piston & spring retainer.
You still have the VB off so it's no big deal.
Good Job.
Cheers. Gaz
 
Nice clean work Mike. Judging by the components you have chosen the trans is going to see some strip time. I strongly advise the use of a billet aluminum rear servo piston & spring retainer.
You still have the VB off so it's no big deal.
Good Job.
Cheers. Gaz


Thanks Gaz , I am actually going to do that and I'm going to pick up a light weight sun shell.

What would you recommend for shaft endplay
 
Well Mike I orientate myself in accordance with Carl Munroe's 727 manual. I think this is one of the best available books on the 727. If not THE best. He calls for .037-.084" endplay in case. Which is a massive tolerance. For a trans that spends it's life just cruising the streets, with an occasional jump down the 440 yards, I have had good results with fitting the fattest select thrust washer in the kit between the reaction shaft support & Reverse /high clutch drum. this usually brings end play down to around .035-.040"
Cheers. Gaz.
 
Well Mike I orientate myself in accordance with Carl Munroe's 727 manual. I think this is one of the best available books on the 727. If not THE best. He calls for .037-.084" endplay in case. Which is a massive tolerance. For a trans that spends it's life just cruising the streets, with an occasional jump down the 440 yards, I have had good results with fitting the fattest select thrust washer in the kit between the reaction shaft support & Reverse /high clutch drum. this usually brings end play down to around .035-.040"
Cheers. Gaz.


Thanks Gaz , I'm going to shoot for .035-.040 and I will check it tomorrow and get it setup.


Today I went to Dwight's place in Bewdley ont. and picked this up and it will go in tomorrow





 
Reducing the rotating mass is good. The lightened sun gear shell helps. BTW. Looks like the dog approves too. LOL!!
 
Reducing the rotating mass is good. The lightened sun gear shell helps. BTW. Looks like the dog approves too. LOL!!



LOL ya that's mopar my little buddy he's the boss he has to approve of anything new that comes in
 
Well got the new sun shell installed today and I got the endplay all set to .040 all I have to do now is the rest lol well setting the front and rear bands / valve body and tail shaft.

The dial indicator move's from zero to the left to the 60 which is .040 just to keep thing's straight .

I ordered the rear billet servo I will get it in as soon as I get it and I will post some pix.

Let me know what you guy's think so far and thanks for all the help along the way , this thing has been so cool to do I can't wait to do the next on for the wife's polara

Here's some pix
Mike














 
You've done a fine job Mike. Class components & a very clean work area. Glad you nailed your end play.

You are right, the first trans overhaul is always a buzz. For most people they are somewhere up there with black holes, rocket science & ufos. LOL. But you got thru it & let's face it, nobody can take that experience away from you.
Good luck & have tons of fun with your 727.
Cheers. Gaz
 
Ok you lost me? Explain how 0 to 60 on the dial indicator equals .040?

The number is not relevant, just the amount the indicator moved from zero. The indicator moved counter clockwise to .060". I guess he was pushing down on the shaft which is why the indicator went backwards.
 
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