Installed a PA valve body on AOD. 1-2 shift is hard deppending on how much I get on it. 2-3 shift is very hard, I hit my head on the seat before. Then when I want it to shift into OD (4) I have to get the rpm's at 2000 or above (my speed is about 55-60) and then let off the gas real quick and it will shift hard. If I don't have the rpm's up even slightly below it won't shift. I have tried not letting my foot off and it will just keep in 3rd. Does this sound normal? It shifts at the same time everytime. No other problems. Just wondering about OD.
Valve Body Question
- Thread starter inklvr
- Start date
QDRHRSE
New Member
Yes. They are designed so that they do not shift into OD under full throttle. As for the high rpm into OD- that may be a TV pressure adjustment that you need to make. AOD's are a pain.
Man I'm having the same problem. The shop just rebuilt my whole tranny and put in an Art Carr manual/auto valve body and it's doing the same thing. I know it locks out of OD under full throttle, but it won't go into OD under part throttle acceleration. It will only do it if I'm way over 3K in third and I let completely off the gas. It shifts from 1 thru 3rd like a damn race car. I knew it would shift hard but this thing honestly has instant engagement, slams into every gear and will bark the tires going into second and third without effort even under part throttle acceleration. The builder said the governor might be bad causing my OD problem and they are also going to tweak the TV pressure adjustment. I hope that takes care of it.
My tv cable was adjusted and the pressure is good. If that's the way it's suppost to be, fine with me. I didn't think 2000rpm is that high. That's where it will shift for 1-2 and 2-3. I just wanted to make sure that I'm suppost to let off in order to get OD.
I wish mine would bark tires! That's what it's suppost to do, and you don't like it??? I replaced the tv cable, vb, and governor when I just rebuilt the trans. I guess when I get a new converter, there's a dampener or something that can be taken off to make the shifts even harder. Woohoo!
I wish mine would bark tires! That's what it's suppost to do, and you don't like it??? I replaced the tv cable, vb, and governor when I just rebuilt the trans. I guess when I get a new converter, there's a dampener or something that can be taken off to make the shifts even harder. Woohoo!
mustangGT85
Founding Member
hey, is this hard slamming of gears bad for the AOD. i maen i know it isnt good. but can someone expect to break an AOD quickly with a MVB?
inklvr said:
Oh I don't mind it barking the tires at all. It's just a lot harder than I was expecting. I'm using more clutches than stock alos so I think that makes a difference too. This vb makes a shift kit look like a child's toy. When it shifts it engages instantly and it sounds and feels like you just got rear ended by a semi doing 40. It's wicked I'm tellin ya. Nobody but my gearhead friends will want to ride in it, but I guess that's fine with me. I want to hit the track and see what it will do. Oh yeah, and the faster a trans shifts the less wear it causes due to decreased slippage.
QDRHRSE
New Member
That's what a manual valve body is for. My old car had a Mikes "Ultimate" AOD which is basically the same thing as a Lentech and it did the same thing. However, if you have a stock AOD and more than stock HP- it will break pretty quick. Regardless of who makes it, an AOD will not hold up without a few things. First and foremost the fluid needs to be changed alot and I would recommend using a sythetic to boot. Next, they need a shift improver kit....a valve body falls into this category of course! And finally, when you really start making power, a tranny with better, and more, clutches and steels is absolutely needed. When you start to make sick HP 350-400+ I would recommend a billet main shaft as well. The AOD was not meant to be a performance tranny so it takes a little work.
QDRHRSE
New Member
Crap......I'm trying to think......is it Royal Purple???? Hopefully somebody else can give me a hand here. Its been a while.
While you have the pan off install a drain plug!!!!!
While you have the pan off install a drain plug!!!!!
QDRHRSE said:
I rebuilt it this time with a lot of good parts. Here's what I used.
Alto red master rebuild kit with extra clutches, steels, seals etc
2500 rpm stall converter
Art Carr manual/auto valve body
Hardened billet input shaft
FRPP Cooler
Torrinton thrust bearings
Intermediate locking snap rings
Redline synthetic fluid
Kevlar OD band
A+ OD servo
This baby is ready for the next power adding phase
GearHd6
Member
I was lookin into that valve body for a 91 AOD but I was worried it was going to go into OD way to soon on the highway. I like to shift into OD at about 65 mph which is about 3Krpms in drive. Will it do what I want it to do?
GearHd6
Member
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