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Drivetrain Is it worth it to rebuild an aod transmission or get something else?

  • Thread starter Thread starter Thebigwhopp
  • Start date Start date Apr 18, 2020
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    aod foxbody transmission
T

Thebigwhopp

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#1
  • Apr 18, 2020
  • #1
Is it worth it to rebuild an aod transmission or get something else? Transmission started slipping bad so I was wondering if I should stay with the aod or go to something else.
 

General karthief

wonder how much it would cost to ship you a pair
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#2
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Street car, yes to rebuild
Race car, yes and no, to many variables
 
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Thebigwhopp

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Street car and any good suggestions on what company's rebuild kit to buy
 

kiddiccarus

The first widely accepted Tranny
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#4
  • Apr 18, 2020
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Lets start with some more information:
Street Car is noted:

What is under the hood, estimated HP and Rear gears as it sits now.
If your plan is to increase any of this later, this is the perfect time to upgrade/strengthen the trans.
 
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Thebigwhopp

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Probably sitting around 325-330 HP and 4:10 gears but the gears may change. And maybe a nitrous kit in the future
 

kiddiccarus

The first widely accepted Tranny
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I do not know much on the Automatic side of Transmissions. Money permitting, I would look at upgrading past stock so that in the end you have more in the trans than what the car will max out at. This should prevent a need to upgrade again in the future. I am sure this is also the line of thought that you were already working with though.

I am a staunch believer in the foundation of the vehicle takes precedence over HP or "Pretty" because without the foundation, you break things
 
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Thebigwhopp

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kiddiccarus said:
I do not know much on the Automatic side of Transmissions. Money permitting, I would look at upgrading past stock so that in the end you have more in the trans than what the car will max out at. This should prevent a need to upgrade again in the future. I am sure this is also the line of thought that you were already working with though.

I am a staunch believer in the foundation of the vehicle takes precedence over HP or "Pretty" because without the foundation, you break things
Click to expand...
I agree 100% drivetrain is my biggest concern
 

2000xp8

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I have to agree with iccarus, you really only want to change a transmission once.
Did you consider a manual trans swap?

I think you also need an advanced skill level for a full rebuild or upgrade (which you may have).
I've done shift kits and they aren't a big deal (in fact I believe the lack of a shift kit is what kills the trans),
But the full rebuild is one of those things that if you mess it up it could cost you dearly.
 
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Thebigwhopp

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  • Apr 18, 2020
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2000xp8 said:
I have to agree with iccarus, you really only want to change a transmission once.
Did you consider a manual trans swap?

I think you also need an advanced skill level for a full rebuild or upgrade (which you may have).
I've done shift kits and they aren't a big deal (in fact I believe the lack of a shift kit is what kills the trans),
But the full rebuild is one of those things that if you mess it up it could cost you dearly.
Click to expand...
I would have a shop do the rebuild for sure i'm not skilled enough to do one myself. And I've never owned a manual car but have the understanding of how to drive manual
 

2000xp8

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Thebigwhopp said:
I would have a shop do the rebuild for sure i'm not skilled enough to do one myself. And I've never owned a manual car but have the understanding of how to drive manual
Click to expand...
A paid rebuild with upgrades is going to be very expensive.
My guess would be 3 grand+.

Highly consider a manual swap (especially if this car is a toy, not a daily driver).
Overall, while not exactly simple, it can be done by an amateur.
Probably increase the fun factor of driving 10 fold...
 
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General karthief

wonder how much it would cost to ship you a pair
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#11
  • Apr 18, 2020
  • #11
If you are considering a rebuilt auto trans with up grades shop around, there are many companies that will drop a upgraded trans right to your door or the shop of your choice, the shop I hang at uses Jasper, they are nation wide and if the shop installs it there is a guarantee, we put an upgraded trans in the dump truck with a 3 year 100k mile guarantee.
 

Adieu

Easy there, this ain't a dating site.
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#12
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http://lentechautomatics.com/products/ I've driven one of their AOD's in a friend's '86 Mustang LX 5.0 putting down 300+ RWHP. I liked it, a lot.

The best advice I can give is don't order a damned thing from Monster Transmissions. Their quality sucks, their warranty is bull, and their customer service is a joke.

You can read about my experience with their transmission here:

Progress Thread - The Story of The Hot Rod Lincoln II (Formerly The Tale of ElSuperPinto)

http://rover.ebay.com/rover/1/711-53200-19255-0/1?icep_ff3=2&toolid=10001&campid=5335821607&icep_item=222041986351 Yay! More crap on the way to sit around and collect dust while I do nothing with the car! :rlaugh: Dad said someone rang the doorbell and asked if it was for sale and he told them...
stangnet.com

Progress Thread - The Story of The Hot Rod Lincoln II (Formerly The Tale of ElSuperPinto)

lol..one of my favourite songs...and movies.. House keeping!...You want mint on peelow?....
stangnet.com
 

JD1964

there is enough sticking out to grab on to
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#13
  • Apr 18, 2020
  • #13
If you really want a sweet auto trans get a 4R70W. Its a newer version electronic controlled. Get the Baumann controller.

AODE & 4R70W Transmission Info

Information on the AODE / 4R70W transmission.
www.becontrols.com
 

General karthief

wonder how much it would cost to ship you a pair
20+ Year Stangneter
Aug 25, 2016
27,950
10,589
203
polk county florida
Apr 18, 2020
#14
  • Apr 18, 2020
  • #14
74stang2togo said:
http://lentechautomatics.com/products/ I've driven one of their AOD's in a friend's '86 Mustang LX 5.0 putting down 300+ RWHP. I liked it, a lot.

The best advice I can give is don't order a damned thing from Monster Transmissions. Their quality sucks, their warranty is bull, and their customer service is a joke.

You can read about my experience with their transmission here:

Progress Thread - The Story of The Hot Rod Lincoln II (Formerly The Tale of ElSuperPinto)

http://rover.ebay.com/rover/1/711-53200-19255-0/1?icep_ff3=2&toolid=10001&campid=5335821607&icep_item=222041986351 Yay! More crap on the way to sit around and collect dust while I do nothing with the car! :rlaugh: Dad said someone rang the doorbell and asked if it was for sale and he told them...
stangnet.com

Progress Thread - The Story of The Hot Rod Lincoln II (Formerly The Tale of ElSuperPinto)

lol..one of my favourite songs...and movies.. House keeping!...You want mint on peelow?....
stangnet.com
Click to expand...
When I was shopping for a new truck trans I looked into them, I agree, a lot of customer service/warranty issues.
 
S

slow84lx

clean it good before insertion
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#15
  • Apr 18, 2020
  • #15
The 4R70W is a stronger transmission vs the AOD in every way. You will need the shift controller from Baumann.
 

TOOLOW91

If you're the village idiot what's that make me?
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#16
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If you decide to build a aod - Freddy brown in Long Island NY is the aod guy . There’s a reason his stuff has been 8s in multiple cars and stays together .
Next would be lentech if you’re stuck on an aod .

I have a FB unit in my car . Good for 1200 hp.
 
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2000xp8

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#17
  • Apr 19, 2020
  • #17
TOOLOW91 said:
If you decide to build a aod - Freddy brown in Long Island NY is the aod guy . There’s a reason his stuff has been 8s in multiple cars and stays together .
Next would be lentech if you’re stuck on an aod .

I have a FB unit in my car . Good for 1200 hp.
Click to expand...
While I've always known Freddy brown had a good reputation, didn't know the pricing.
So for curiosity's sake I took a look.
At a glance seems like you can get a decent trans at a good price, but man if you start checking boxes for upgrades or additions and you can take 2 grand and easily turn it into 5 grand.
 
Reactions: TOOLOW91

TOOLOW91

If you're the village idiot what's that make me?
20+ Year Stangneter
Nov 29, 1999
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Apr 19, 2020
#18
  • Apr 19, 2020
  • #18
2000xp8 said:
While I've always known Freddy brown had a good reputation, didn't know the pricing.
So for curiosity's sake I took a look.
At a glance seems like you can get a decent trans at a good price, but man if you start checking boxes for upgrades or additions and you can take 2 grand and easily turn it into 5 grand.
Click to expand...
Yup . My unit with the aftermarket bell , brake and upgrades was close to 4600 new .
 

Leadsled Coupe

New Member
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East TN
Apr 25, 2020
#19
  • Apr 25, 2020
  • #19
15 years ago when I was building mine I planned ahead and got a Lentech built for 700hp. Full manual version, no lockup on OD, one piece input shaft etc.

It’s still running great today but I am only making 425hp at flywheel NA and 100hp NOS which I’ve used rarely.

Others rebuild AODs similarly as capable. Don’t dish the AOD it can handle it. Newer automatic route was too expensive back in the day for same level of HP. I am sure much has changed since I researched it 15 yrs ago.
 
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