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  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-

Tranny upgrade

  • Thread starter Thread starter Moondog2178
  • Start date Start date Aug 18, 2024
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89ripper

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Jun 3, 2002
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Rockford, Illinois
Aug 18, 2024
#21
  • Aug 18, 2024
  • #21
Moondog2178 said:
Car was always garaged and pampered. I didn’t want an AOD but I couldn’t pass up this car. Never seen rain. One owner car and they’re in their 70s now
Click to expand...
Ok. Assuming all work that was done is on the up and up then thats strange it failed like that....throttle valve cable hooked up and in adjustment?
 

Moondog2178

Member
Mar 10, 2024
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Aug 18, 2024
#22
  • Aug 18, 2024
  • #22
89ripper said:
Ok. Assuming all work that was done is on the up and up then thats strange it failed like that....throttle valve cable hooked up and in adjustment?
Click to expand...
Car runs and drives great. Sub frame connectors and flowmaster 40 series are the only things I’ve done. I guess I’m just not used to this car with an AOD tranny. It really takes away from the car
 

89ripper

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#23
  • Aug 18, 2024
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Yes. Compared to the sought after manuals the AODs are quite boring. Well unless you have a Lentech then its a little better but will never replace the feeling of a stick shift. Although Im quite happy with mine
 

Moondog2178

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Aug 18, 2024
#24
  • Aug 18, 2024
  • #24
89ripper said:
Yes. Compared to the sought after manuals the AODs are quite boring. Well unless you have a Lentech then its a little better but will never replace the feeling of a stick shift. Although Im quite happy with mine
Click to expand...
It’s a cool car to drive. I get a ton of thumbs up when I’m driving it but it’s not a fun car to drive. Wish it could leave a little rubber but then again, I don’t buy it to race. These cars are going up in value. Especially stock and unmolested
 

2000xp8

SN Certified Technician
Aug 8, 2003
8,017
1,614
194
NJ
Aug 18, 2024
#25
  • Aug 18, 2024
  • #25
The difference in fun factor between a t5 car and an auto is pretty drastic in unmodified or lightly modied foxes.
 
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89ripper

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#26
  • Aug 18, 2024
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Its totally because of the torque converter stall speed. It flashes around 1500 so very low and I remember having that problem before I swapped it out. These are cool cars, is this your first one?
 

Moondog2178

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#27
  • Aug 18, 2024
  • #27
89ripper said:
Its totally because of the torque converter stall speed. It flashes around 1500 so very low and I remember having that problem before I swapped it out. These are cool cars, is this your first one?
Click to expand...
Yea. On a scale of 1-10 the car is a solid 8 overall. Hard to find that. Paid $18k for it
 

89ripper

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#28
  • Aug 18, 2024
  • #28
Thats cool. Life would have been a lot different for me had I passed on my car for something else. So basically, as long as you arent beating on it the AOD should hold up. Also make sure the tv cable is good because that unhooked or out of adustment can fry it
 
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Moondog2178

Member
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#29
  • Aug 18, 2024
  • #29
89ripper said:
Thats cool. Life would have been a lot different for me had I passed on my car for something else. So basically, as long as you arent beating on it the AOD should hold up. Also make sure the tv cable is good because that unhooked or out of adustment can fry it
Click to expand...
Nah I don’t beat on it. Thanks for your input
 

AeroCoupe

lube between the nut and the face. I know my lubes
Founding Member
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#30
  • Aug 20, 2024
  • #30
With the car having low miles that is great but really the only stock Fox cars that are bring $$$ are the SVO / SVT cars. You would have to find the right person to pay top dollar for an AOD car. Correctly swap it to a 5 speed or 6 speed car and I guarantee that the dollar value of that car will go up simple because more people want a manual transmission Mustang.

If you want it to stay a slush box car then pull the AOD and have a reputable builder go through it and change the converter. I have heard that Silverfox is also a really good builder. Their website appears to be down but their FB is still good.

Silver Fox Performance Transmission

Performance Transmission products, kits, how-to's, tutorials, and valve bodies
www.silverfoxtrans.com

Silverfox Performance Transmission | Pleasant Hill MO

Silverfox Performance Transmission, Pleasant Hill, Missouri. 1,022 likes · 2 talking about this. SPT specializes in top-quality rebuilt "PERFORMANCE" Ford transmissions. We specialize in the Ford
www.facebook.com
 
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KRUISR

10 Year Member
Apr 16, 2015
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#31
  • Aug 20, 2024
  • #31
89ripper said:
Yes. Compared to the sought after manuals the AODs are quite boring. Well unless you have a Lentech then its a little better but will never replace the feeling of a stick shift. Although Im quite happy with mine
Click to expand...
When I first rebuilt my car (in 2017) it had the original 240k km AOD, all stock including the converter with a Lentech valve body. I put 3.73s in the rear during the rebuild and had a blast with it for 4 years and 20k km. I played with the TV cable adjustment a bit to get the shift points better while cruising. In spring 2021 I took out 3rd gear during a 5500 rpm powershift. I decided to do a manual swap and 5 lug conversion at the same time. I still have the damaged trans that I will fix someday.

I would highly recommend the Lentech valve body - I have the Street Terminator 2L version.
 
Reactions: General karthief, 89ripper and Moondog2178

89ripper

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Rockford, Illinois
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#32
  • Aug 20, 2024
  • #32
KRUISR said:
When I first rebuilt my car (in 2017) it had the original 240k km AOD, all stock including the converter with a Lentech valve body. I put 3.73s in the rear during the rebuild and had a blast with it for 4 years and 20k km. I played with the TV cable adjustment a bit to get the shift points better while cruising. In spring 2021 I took out 3rd gear during a 5500 rpm powershift. I decided to do a manual swap and 5 lug conversion at the same time. I still have the damaged trans that I will fix someday.

I would highly recommend the Lentech valve body - I have the Street Terminator 2L version.
Click to expand...
KRUISR, Id have to check but I believe I have the street terminator plus transmission. I have around 30 to 40000 miles on it and its still holding up well. Sounds like you broke the input shaft, at least thats what I did to my old trans. Only had access to first and second.
 

Noobz347

Stangnet Facilities Maint Tech... Er... Janitor
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Jan 4, 1985
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#33
  • Aug 20, 2024
  • #33
I'll just leave this here.




4x Four-Speed Transmission for Small Block Ford, Electronic 4L80E-Based

TCI® 4x Four-Speed™ Auto Transmissions enable the use of a 4L80E transmission with non-GM applications.
www.tciauto.com
 

KRUISR

10 Year Member
Apr 16, 2015
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#34
  • Aug 20, 2024
  • #34
89ripper said:
KRUISR, Id have to check but I believe I have the street terminator plus transmission. I have around 30 to 40000 miles on it and its still holding up well. Sounds like you broke the input shaft, at least thats what I did to my old trans. Only had access to first and second.
Click to expand...
Yup, only had first and second. The shift to third was as if it was in neutral. I have not dug into it to diagnose the issue.
 

89ripper

Founding Member
Jun 3, 2002
926
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Rockford, Illinois
Aug 20, 2024
#35
  • Aug 20, 2024
  • #35
KRUISR said:
Yup, only had first and second. The shift to third was as if it was in neutral. I have not dug into it to diagnose the issue.
Click to expand...
I remember breaking it while racing at the strip. Entered overdrive when it shouldnt of and snapped the shaft right in half.
 

Noobz347

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#36
  • Aug 21, 2024
  • #36
I'm going to leave this here too. There's some good stuff in this video:

 
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M

mattcrp1

Active Member
Nov 16, 2023
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Aug 24, 2024
#37
  • Aug 24, 2024
  • #37
Back in the 90s early 2k, I thought the hot set up was mixing and matching 4r70 gear trains into AODs. I rode in one that was all done up with a high stall converter and nice valve body. Thing was a rocket ship. We used to swap stock AODs when they went out all the time at the dealer when I was an apprentice.
 
J

Jarhead67

5 Year Member
Nov 24, 2018
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Aug 25, 2024
#38
  • Aug 25, 2024
  • #38
Moondog2178 said:
Hi all, I have an ‘89 5.0 vert with 39k miles on it. I’m the second owner. Bought it in March with 38k. Other than flowmasters and sub frame connectors the car is completely stock and unmolested. I’m looking to replace the current AOD tranny in the near future with a better one. The original tranny has already been replaced and I just had the seals done on this one. These trannys are weak. Has anyone upgraded their tranny and what do you recommend? Thanks
Click to expand...
If you want to stay automatic, get yours rebuilt with performance parts and high stall converter
 
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Noobz347

Stangnet Facilities Maint Tech... Er... Janitor
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#39
  • Aug 25, 2024
  • #39
Jarhead67 said:
If you want to stay automatic, get yours rebuilt with performance parts and high stall converter
Click to expand...

I don't know that you can put a stall converter into an AOD.

I'm sure somebody will correct me if I'm wrong.
 

89ripper

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#40
  • Aug 25, 2024
  • #40
Noobz347 said:
I don't know that you can put a stall converter into an AOD.

I'm sure somebody will correct me if I'm wrong.
Click to expand...
Noobz you mean a higher stall torque converter? Than yes. 12 inch I believe is stock. The smaller diameter the higher the stall speed.
 
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