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Old, old magazine article - 727 homemade shift kit #1623943
05/23/14 12:09 AM
05/23/14 12:09 AM
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WyleECoyote Offline OP
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Late 80's to mid 90's magazine...
I'm p..r..e..t..t..y s..u..r..e.. there was a "Vitamin C" orange car on the cover...

Most stand-out part of the article (to me) was: it showed a picture of the valve body to illustrate something - and it said something to the effect of; "if you're doing this with the transmission in the car, hold this article above your head and look up." (paraphrased)

Anyways, point of this post is that it was / IS a phenomenal article to a FANTASTIC, PROVEN shift kit. I used it to rebuild five transmissions, two of which are mine that are still working outstanding, and I drive them daily - that I absolutely love everything about the shift pattern and performance.

Problem. (If it isn't obvious) I've lost the magazine during the past 20 years... and I want to find the article again!

In a nutshell, it was something like;
-- toss these two ball bearings (illustration),
-- drill this hole out with a 0/00th drill bit (illustration),
-- trace this picture onto a piece a cardboard, cut it out and use it as a measuring tool to adjust the line pressure to this 1- 0/0-inch distance (illustration),
-- chuck the accumulator spring, and
-- can't remember what else...

So,... does anyone else remember this article / have it / know of an e-copy?

Does this sound familiar to anyone that is knowledgeable of a same/similar process of making simple, homemade changes to a 727 to make it shift firm and perform outstanding?

Thanks in advance for any input!

Re: Old, old magazine article - 727 homemade shift kit [Re: WyleECoyote] #1623944
05/23/14 12:21 AM
05/23/14 12:21 AM
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I'm pretty sure it was Mopar Action (or was it Cars Magazine... ).

I followed that article on one of my hooptie winter beaters and it worked great!

I'm sure I still have the article, but, I have no idea which box its packed in.


John

The dream is dead, long live the dream.......😥
Re: Old, old magazine article - 727 homemade shift kit [Re: SattyNoCar] #1623945
05/23/14 12:41 AM
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Re: Old, old magazine article - 727 homemade shift kit [Re: SattyNoCar] #1623946
05/23/14 01:35 AM
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Quote:


I'm pretty sure it was Mopar Action (or was it Cars Magazine... ).




I'm 92.426383440% sure you're correct on it being a Mopar Action mag.

So now get digging in dem dere boxes!!!

Re: Old, old magazine article - 727 homemade shift kit [Re: WyleECoyote] #1623947
05/23/14 01:57 AM
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Hwy E-Berg, if you are lurking & eavesdropping, please enlighten! This does sound like one of yours to me...

-Saulsberg


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Re: Old, old magazine article - 727 homemade shift kit [Re: Sunroofcuda] #1623948
05/23/14 09:59 AM
05/23/14 09:59 AM
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I looked thru the magazine article index over at the MA website and I'm pretty sure the article is in the October '89 (!) issue. (doesn't show the article, just gives you an idea how far back you need to go...)

I can't be the only one out there that saves MA mags.


John

The dream is dead, long live the dream.......😥
Re: Old, old magazine article - 727 homemade shift kit [Re: SattyNoCar] #1623949
05/23/14 10:04 AM
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I think you will find it originated here or in a earlier version.The above has been published more than once over the years by various sources,I'm old enough to remember.

8153204-P9110520.jpg (693 downloads)
Re: Old, old magazine article - 727 homemade shift kit [Re: 62maxwgn] #1623950
05/23/14 12:09 PM
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Quote:

I think you will find it originated here or in a earlier version.The above has been published more than once over the years by various sources,I'm old enough to remember.




I think you are totally right. Ehrenberg confirms: "that’s all well-known stuff out of the old DC manuals…."


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Re: Old, old magazine article - 727 homemade shift kit [Re: Sunroofcuda] #1623951
05/23/14 01:19 PM
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So now I just have to find an old DC manual. How hard can that be....?

Re: Old, old magazine article - 727 homemade shift kit [Re: WyleECoyote] #1623952
05/23/14 01:52 PM
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Try MoparMusclemagazine.com Feb. 2002 issue. I have a copy of the article but not the entire mag. It's titled "Shifty Business" may not be the exact one but worth a look.
Here's the link: http://www.moparmusclemagazine.com/techa...lite_valvebody/

Last edited by Mr340; 05/23/14 01:57 PM.
Re: Old, old magazine article - 727 homemade shift kit [Re: WyleECoyote] #1623953
05/23/14 04:07 PM
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Quote:


-- chuck the accumulator spring




Sigh, it seems this myth will never die.

It's really simple to perform homespun mods that will give you a thunderous 1-2 shift in Drive but those same mods will cause severe overlap on a manual 1-2 upshift...this is why the homespun mods and the cheap "plate kits" are a waste of time/money.


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Re: Old, old magazine article - 727 homemade shift kit [Re: John_Kunkel] #1623954
05/23/14 04:13 PM
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Glad you spoke up... I didn't want to be in the minority... again

Buy a shift kit


Re: Old, old magazine article - 727 homemade shift kit [Re: 52savoy] #1623955
05/23/14 04:40 PM
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Stop the presses!

Let me make sure I emphasize that I am only talking street-weenie level stuff here. Stock engines, no upgrades. I don't even begin to - or pretend to - understand the real performance side of this hobby.

John - All I'm saying is that in Drive or manual 1-2 upshift - my transmissions shift as thunderous as you describe. As far as a severe overlap, I don't even know what that means because neither of my transmissions act different in Drive or manual upshifts.

These transmissions are in a bone stock 71 Super Bee, 383 and an 84 D350 Crew Cab Dually with a bone stock 72 Imperial 440 with headers.

Again, all I did was follow some article from back in the day and I like the firm shifts for on the street in my daily drivers. If I was ever getting into the race / performance side of the house, there is no doubt I would be learning about and using totally different stuff for automatic transmissions.

52savoy - I'm not opposed at all to shift kits, none-the-least. It's just hard for me to spend money when I know of - and have 2 perfectly working vehicles with a no-bucks alternative. And if I don't find that daggone article, I probably won't trust any other article and will end up buying a shift kit for my next auto trans rebuild.

Re: Old, old magazine article - 727 homemade shift kit [Re: WyleECoyote] #1623956
05/23/14 04:46 PM
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I'm not saying your wrong.. but it's just not(from own personal experience) that great. You can jack up the line pressure and get the same results if not better.



I've got the same mods in my '68 roadrunner. Been that way for 30 years but it could be much better.

Re: Old, old magazine article - 727 homemade shift kit [Re: 52savoy] #1623957
05/23/14 04:50 PM
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Quote:

You can jack up the line pressure and get the same results if not better.




Touche' - I didn't know that either. Maybe that is something in itself I could/should try and leave all the other stuff as-is from the factory.

Re: Old, old magazine article - 727 homemade shift kit [Re: WyleECoyote] #1623958
05/23/14 05:05 PM
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Sounds like what Fairbanks used to do to them essentially for their "shift kits"


Now I need to pin those needles, got to feel that heat
Hear my motor screamin while I'm tearin up the street
Re: Old, old magazine article - 727 homemade shift kit [Re: WyleECoyote] #1623959
05/23/14 08:06 PM
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Quote:

John - All I'm saying is that in Drive or manual 1-2 upshift - my transmissions shift as thunderous as you describe. As far as a severe overlap, I don't even know what that means because neither of my transmissions act different in Drive or manual upshifts.




I can bore you with a lengthy dissertation on the difference between a modified and unmodified manual 1-2 upshift but, trust me, there is a difference. Without the rear servo mods that are common in a reprogramming kit you have overlap.


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Re: Old, old magazine article - 727 homemade shift kit [Re: John_Kunkel] #1623960
05/23/14 08:25 PM
05/23/14 08:25 PM
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Not trying to hijack this thread but...
John - How do you feel about Turbo Action (Cheetah) reverse manual valve bodies (w/o low band apply) for street driven cars?


"When I'm in a slump, I comfort myself by saying if I believe in dinosaurs, then somewhere, they must be believing in me. And if they believe in me, then I can believe in me." - Mookie Wilson
Re: Old, old magazine article - 727 homemade shift kit [Re: 1968RR] #1623961
05/23/14 08:42 PM
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Quote:

Not trying to hijack this thread but...





JACKER!



Just kidding - I'm all about learning more about all this stuff!

Re: Old, old magazine article - 727 homemade shift kit [Re: WyleECoyote] #1623962
05/23/14 09:23 PM
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getting back to "overlap"...
In a strong shifting automatic, you want each shift to be clear and crisp. Chrysler built some overlap into the shift so granny doesn't get a whiplash at every gear change.. So 1st and 2nd are actually engaged at the same time for a split second. The tranny mods you want to do make overlap worse from my experience and I've done maybe a half dozen 727s that way...years ago. Putting good(billet) servos and accumlator along with a few other pieces will do wonders without even moving on to a good shift kit.

My roadrunner has been on the back-burner for years but WILL be done right before this year is over.

Re: Old, old magazine article - 727 homemade shift kit [Re: 52savoy] #1623963
05/23/14 10:13 PM
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Great description, makes sense. Thanks!

Re: Old, old magazine article - 727 homemade shift kit [Re: 1968RR] #1623964
05/24/14 06:21 PM
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Quote:


John - How do you feel about Turbo Action (Cheetah) reverse manual valve bodies (w/o low band apply) for street driven cars?




I'm not a fan of RMVB's on the street, the violent shifts get old after awhile. W/O LBA you need to be conscious of what your right foot's doing in low gear.


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Re: Old, old magazine article - 727 homemade shift kit [Re: John_Kunkel] #1623965
12/29/14 02:52 AM
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I finally got up the ole attic and busted out the boxes of magazines and went through my Mopar Action mags and still can't find the mag with the awesome article on this shift kit. Anyone else come across it yet???


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Re: Old, old magazine article - 727 homemade shift kit [Re: WyleECoyote] #1623966
12/29/14 11:40 AM
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I have it. It's in my garage. My home computer with the scanner is being repaired, I'll take a picture later. Used it plenty of times. You block the accumulator with a piece of rod adjust the line pressure screw, remove one check ball, #6 if I remember and enlarge one hole in the transfer plate. That's it. I'll look today.
Doug

Re: Old, old magazine article - 727 homemade shift kit [Re: dvw] #1623967
12/29/14 12:42 PM
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Isn't that what the MP shift improved kit did?
Not that I would know. Been running a 4spd forever.
I remember seeing in the catolog a solid looking steel tube? A ring and spring?

Re: Old, old magazine article - 727 homemade shift kit [Re: Rob C] #1623968
12/30/14 08:42 AM
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Page one

8378006-TF_TIPS_1.jpg (325 downloads)



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Re: Old, old magazine article - 727 homemade shift kit [Re: gdonovan] #1623969
12/30/14 08:45 AM
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Re: Old, old magazine article - 727 homemade shift kit [Re: gdonovan] #1623970
12/30/14 08:47 AM
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Re: Old, old magazine article - 727 homemade shift kit [Re: gdonovan] #1623971
12/30/14 08:50 AM
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Page 4

Someone scanned in for me when I asked the question back in 2009, just passing the scans along.

8378009-TF_TIPS_4.jpg (256 downloads)



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Re: Old, old magazine article - 727 homemade shift kit [Re: gdonovan] #1623972
12/30/14 01:15 PM
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I guess I've been beaten to it.
Doug

Re: Old, old magazine article - 727 homemade shift kit [Re: dvw] #1623973
12/30/14 01:35 PM
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To confirm, what dia drill bit in #9, is that 9/16"


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Re: Old, old magazine article - 727 homemade shift kit [Re: RapidRobert] #1623974
12/30/14 02:19 PM
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#9 drill is 0.1960,nowhere close to 9/16"

Re: Old, old magazine article - 727 homemade shift kit [Re: 62maxwgn] #1623975
12/30/14 03:09 PM
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alright, 0.196" thank you. Agreed 9/16" it ain't likely you'd being going that big on a sep plate hole but it sorta looked like 9/16 in the pic so I wanted to clarify


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Re: Old, old magazine article - 727 homemade shift kit [Re: RapidRobert] #1623976
12/30/14 03:25 PM
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3/16"/.1875"

Re: Old, old magazine article - 727 homemade shift kit [Re: RapidRobert] #1623977
12/30/14 03:26 PM
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What mag is that article in ? I have a ton of old mags getting ready to go to the recycle station , I'm tired of moving them...

after reading the first page I have to guess mopar action ??

Last edited by JohnRR; 12/30/14 03:29 PM.
Re: Old, old magazine article - 727 homemade shift kit [Re: goldmember] #1623978
12/30/14 03:37 PM
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Quote:

alright, 0.196" thank you. Agreed 9/16" it ain't likely you'd being going that big on a sep plate hole but it sorta looked like 9/16 in the pic so I wanted to clarify




Robert you confused the issue by putting in #9 instead of saying STEP 9 , as it says to use a

Quote:

3/16" =.1875"




Not a #9 drill bit , which Bill correctly told you the size. I'm not sure how much a .009 bigger drill is going to affect the desired performance.

The article is confusing about removing a check ball in the upper half , but mentions a cup and spring or ball and spring but must remain ???

It's been a while since I've had a valvebody apart ...

Re: Old, old magazine article - 727 homemade shift kit [Re: JohnRR] #1623979
12/30/14 03:48 PM
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Quote:

Robert you confused the issue by putting in #9 instead of saying STEP 9 , as it says to use a ..


Alright makes sense now. Thank you! I will tighten up my grammer. I knew me & him weren't on the same page but I couldn't grasp where I was off


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Re: Old, old magazine article - 727 homemade shift kit [Re: RapidRobert] #1623980
12/30/14 04:23 PM
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Enlarging the hole in step #9 only relates to '71 and later...that hole is already larger than 3/16" in the earlier VB's.

And, for the 4000th time, the advice in step #5 to toss the accumulator spring is based on the oldest myth in the Mopar world....DON'T DO IT

And, as I stated earlier in this thread, tossing the check ball in step #7 without rear servo mods is inviting severe overlap on manual 1-2 upshifts.


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Re: Old, old magazine article - 727 homemade shift kit [Re: John_Kunkel] #1623981
12/30/14 07:38 PM
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Quote:

Enlarging the hole in step #9 only relates to '71 and later...that hole is already larger than 3/16" in the earlier VB's.

And, for the 4000th time, the advice in step #5 to toss the accumulator spring is based on the oldest myth in the Mopar world....DON'T DO IT

And, as I stated earlier in this thread, tossing the check ball in step #7 without rear servo mods is inviting severe overlap on manual 1-2 upshifts.


John should I adhere to this for a street automatically upshifting in drive normal vb/trans & what about the slight confusion in step 10 (check ball/spring-cup/spring) which one stays/goes?.


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Re: Old, old magazine article - 727 homemade shift kit [Re: RapidRobert] #1623982
12/30/14 07:46 PM
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I wouldn't eliminate any check balls in the lower VB (transfer plate). These check balls protect components by limiting fluid flow during application but drop away during release to speed the release.

One exception might be plow trucks in which the check balls delay rapid shifts between Drive and Reverse.


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