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Last year I did an AOD conversion in my 65 Mustang.
I have a 302 with an elder Brock carburetor and the lokar TV cable kit .
I have the TV pressure set correctly according to lokar instructions the car up shifts quickly from 1st to 2nd and 2nd to 3rd and goes into overdrive at about 35 mph But will not shift out of overdrive until the car drops down to around 25 to 30 mph . I’m being told by my transmission shop that rebuilt the AOD that I may need to change the springs in the governor I’ve been doing some reading on the Internet and I see where there are heavier springs and lighter springs for the governor that will help the shift patterns but I don’t get a clear definition as to whether or not I need a heavier spring or a lighter spring .
Has anyone else had this issue and what did they do to correct the problem or is there another governor that works best with the 65 mustang AOD conversion thanks
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The only real problem on our AOD 67 was the Lokar cable never return to same idle position so psi varied. I added a return spring with adjustable stop on AOD lever linkage. It took care of most shifting problem. 35 mph isn't bad depending on what rear gears your using.
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Welcome to the wonderful world of AODs. Bullet Bob might be helpful as he's the only guy I know who has his AOD running aok.
Currently I do the AOD shuffle to manually shift from first to second, and second to third. I only shift into OD when on the highway.
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I have 3.25 rear gears with 25 inch dia tires. My AOD shifts into OD at about 39-40 MPH at light throttle.
I have to slow to about 30-32 for it to down shift into 3rd. I often manually drop it down to third if I need to stay in that gear.
I have often thought about doing the "Epoxy" mod to the valve body for proper 1-2-3-OD control but it works so well that I'm hesitent to mess with it.
Here is what my Lokar set up looks like.
Last edited by Rudi (12/01/2019 3:02 PM)
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O Kayyyyyyyyyyyyyyyyyyyyyyyy!!!
What's the "Epoxy Mod"???
6sal6
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6sally6 wrote:
O Kayyyyyyyyyyyyyyyyyyyyyyyy!!!
What's the "Epoxy Mod"???
6sal6
An article on another web site where the valve body is removed and some the internal passages are epoxied shut and extra holes drilled in it.
The result is the elimination of the 1, 2, 1 shift to manually hold the transmission in second gear till you want to shift into 3rd.
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While the epoxy mod is ingenious, my "problem" with it is once it's in third gear, it will always automatically go into overdrive. Always. And my "problem" with the overdrive in the AOD is when you hit about 110 mph it downshifts into 3rd. Then shift info O.D., then downshift...
The AOD can and has been built to work well. I've ridden in Bullet Bob's AOD equipped heap, and it works flawlessly. I didn't do all my homework to find all the quirks of it before jumping in.
Other than some weird noises from my AOD on the Mini Bash trip to Waco, mine is doing ok, and I might keep it. With a shift kit valve body in mine, the rpm's need to be let to be kept up to around 1,100 when downshifting manually, or it hits really hard. Sometimes I forget.
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This is the kit I bought which was recommended during my research. The writing on the box says it increases max throttle upshift to approximately 5,000 rpm. It can be installed by removing the tailshaft. I haven't installed mine.
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I have read an article once that a shop added an extension to the kick down and it solved all the shifting problems. .I have my aod set that it shifts 1-3 pretty simply..its a new rebuild and up shifts firm..anyway..my problem is down shifting to 2nd,for instance when im making a turn..it will shift from OD to 3rd fine..but it wont shift down to 2nd unless I feather the pedal..any solutions..i too have the 5.0, lokar , edelbrock intake and carb
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It sounded like I had use the same kit as Bull Bob. It shifted fine with 3.50 gears, but it worked better with the 3.70 gear change. I drilled for street/strip and glad I didn't go full race. As I mention the sloppy lokar setup needed fix.
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A corvette servo helped my 4L-60 a lot butt it still shifts early too.
Good reason to just "suffer" with a T-5!
6sal6
OR..........
PS..........you know what "they say"..... classic Mustang+427 cammer engine+Lenco tranny= gawd like!
I'm sure heaven will be full of these combos!
Last edited by 6sally6 (12/02/2019 6:45 PM)
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6sally6 wrote:
O Kayyyyyyyyyyyyyyyyyyyyyyyy!!!
What's the "Epoxy Mod"???
6sal6
As I recall, LenTech automatics was featured in a magazine ( Mustangs and Fords?) with how to modify the valve body and used epoxy to install a dowel to reroute the flow inside the body. Definitely more to it but that is the “Epoxy Mod”.
I will look for the article. I had planned on doing this prior to my T5 swap. I know I didn’t throw it away...yet.😂
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Bearing Bob wrote:
While the epoxy mod is ingenious, my "problem" with it is once it's in third gear, it will always automatically go into overdrive. Always. And my "problem" with the overdrive in the AOD is when you hit about 110 mph it downshifts into 3rd.
Isn’t Fouth controlled with a solenoid in transmission?
Could you wire a switch to disable it?
Or override it as needed?
Last edited by Nos681 (12/02/2019 6:36 PM)
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Nos681 wrote:
Bearing Bob wrote:
While the epoxy mod is ingenious, my "problem" with it is once it's in third gear, it will always automatically go into overdrive. Always. And my "problem" with the overdrive in the AOD is when you hit about 110 mph it downshifts into 3rd.
Isn’t Fouth controlled with a solenoid in transmission?
Could you wire a switch to disable it?
Or override it as needed?
You can on the 700R tranny I believe.
6s6
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No solenoids in the AOD. I "THINK" the AOD-E (E for electronic) was first to have a solenoid. If not, it was the 4R70W.
Here's the Lentech how to article, hope you have good eyes:
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red351 wrote:
It sounded like I had use the same kit as Bull Bob. It shifted fine with 3.50 gears, but it worked better with the 3.70 gear change.
That is good info. I currently have 3.50s cuz no matter how much adjusting, the 3.70 set are noisy. Time to get out the polished 3.89 gear set.
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My AODE has a switch for OD off. Press the cigarette lighter to turn it on and off.
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50vert wrote:
My AODE has a switch for OD off. Press the cigarette lighter to turn it on and off.
I know you showed me how to do that, but I forgot. So I made a list of things to ask you about to refresh my memory this summer, but as usual I forgot about the list.....
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red351 wrote:
50vert wrote:
My AODE has a switch for OD off. Press the cigarette lighter to turn it on and off.
I know you showed me how to do that, but I forgot. So I made a list of things to ask you about to refresh my memory this summer, but as usual I forgot about the list.....
There's a word for that ... but I can't recall it.
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Thanks for the kind woids BB2, butt while my AOD works acceptably for me, it might not be right for others. Mine is a nearly stock AOD from an 89 TC. I rebuilt it by my-own-self and the only mods were the installation of a couple of extra direct (I think) clutches/steels and a 2" high quality OD band.
On light throttle it will be in second way before you cross the intersection and will go to third close thereafter. I modified my stock C4 shifter for the AOD and Green Dot (I think...forward notch, hell I never look at it, just drive it) is now for OD and I drive it in the center stop around town shifting one notch forward above 45 or so. Like Bob's, if I don't have some throttle on it will go back to third from 4th with a serious whambo. And, if I don't keep some throttle on it will try to go back and forth between 3 and 4. Usually I pull it back in to third and then shift back to OD when the passing is done.
Butt (TS&T), with over 30K on it I really can't complain. Just had to learn how to live with it and for normal driving it is more or less acceptable.
I've gotten serious about learning how to "Tune" the EEC-1V PCM and soon as I figure that out I will probably swap to the 03 4R70W that's sittin' on the shop floor. The AOD will get you by but most folks will be happier with the E-box, I suspect.
Also, as stated by others, I believe you want to go to higher pressure springs. It will shift up when gov. pressure exceeds throttle valve pressure. By going to a slightly higher spring that point will occur at a higher tailshaft RPM.
BB
Last edited by Bullet Bob (12/03/2019 3:35 PM)
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Bullet Bob wrote:
Thanks for the kind woids BB2, butt while my AOD works acceptably for me, it might not be right for others. Mine is a nearly stock AOD from an 89 TC. I rebuilt it by my-own-self and the only mods were the installation of a couple of extra direct (I think) clutches/steels and a 2" high quality OD band.
On light throttle it will be in second way before you cross the intersection and will go to third close thereafter. I modified my stock C4 shifter for the AOD and Green Dot (I think...forward notch, hell I never look at it, just drive it) is now for OD and I drive it in the center stop around town shifting one notch forward above 45 or so. Like Bob's, if I don't have some throttle on it will go back to third from 4th with a serious whambo. And, if I don't keep some throttle on it will try to go back and forth between 3 and 4. Usually I pull it back in to third and then shift back to OD when the passing is done.
Butt (TS&T), with over 30K on it I really can't complain. Just had to learn how to live with it and for normal driving it is more or less acceptable.
I've gotten serious about learning how to "Tune" the EEC-1V PCM and soon as I figure that out I will probably swap to the 03 4R70W that's sittin' on the shop floor. The AOD will get you by but most folks will be happier with the E-box, I suspect.
Also, as stated by others, I believe you want to go to higher pressure springs. It will shift up when gov. pressure exceeds throttle valve pressure. By going to a slightly higher spring that point will occur at a higher tailshaft RPM.
BB
Bob with the 3.50 our AOD did the 3/4 shuffle while cruising the back country roads. Fix that by mistake with the gear change.
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red351 wrote:
I drilled for street/strip and glad I didn't go full race.
I don't understand what you drilled, will you expound please?
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Bearing Bob wrote:
No solenoids in the AOD. I "THINK" the AOD-E (E for electronic) was first to have a solenoid. If not, it was the 4R70W.
Here's the Lentech how to article, hope you have good eyes:
That is the article BB II
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red351 wrote:
Bullet Bob wrote:
Thanks for the kind woids BB2, butt while my AOD works acceptably for me, it might not be right for others. Mine is a nearly stock AOD from an 89 TC. I rebuilt it by my-own-self and the only mods were the installation of a couple of extra direct (I think) clutches/steels and a 2" high quality OD band.
On light throttle it will be in second way before you cross the intersection and will go to third close thereafter. I modified my stock C4 shifter for the AOD and Green Dot (I think...forward notch, hell I never look at it, just drive it) is now for OD and I drive it in the center stop around town shifting one notch forward above 45 or so. Like Bob's, if I don't have some throttle on it will go back to third from 4th with a serious whambo. And, if I don't keep some throttle on it will try to go back and forth between 3 and 4. Usually I pull it back in to third and then shift back to OD when the passing is done.
Butt (TS&T), with over 30K on it I really can't complain. Just had to learn how to live with it and for normal driving it is more or less acceptable.
I've gotten serious about learning how to "Tune" the EEC-1V PCM and soon as I figure that out I will probably swap to the 03 4R70W that's sittin' on the shop floor. The AOD will get you by but most folks will be happier with the E-box, I suspect.
Also, as stated by others, I believe you want to go to higher pressure springs. It will shift up when gov. pressure exceeds throttle valve pressure. By going to a slightly higher spring that point will occur at a higher tailshaft RPM.
BB
Bob with the 3.50 our AOD did the 3/4 shuffle while cruising the back country roads. Fix that by mistake with the gear change.
So Rich, are you saying you went to taller gears and it stopped the goofy behavior? I can see how that would work...slower tail shaft speed, bigger spread between the gov and TV. I wonder if slightly stronger gov springs would do the same....Hmmmmm?
BB
Last edited by Bullet Bob (12/04/2019 7:27 AM)
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