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

T5 identification

  • Thread starter Thread starter 3054tony
  • Start date Start date May 16, 2026
  • 1
  • 2
Next
1 of 2 Next Last

3054tony

Member
Nov 9, 2023
49
17
18
Us
May 16, 2026
#1
  • May 16, 2026
  • #1
Dumb question but is there a way to identify a T5 with it still in the car and tag missing? Only thing I'm finding here are broken links from years ago. Original transmission went out and I picked up a replacement on Craigslist 14 or 15 years ago and can't remember anything. It feels different than the original but no clue what car it came out of. Just trying to see if I can tell what I got and can't see any numbers on it that I can find just looking from underneath.
 

Noobz347

Stangnet Facilities Maint Tech... Er... Janitor
Admin Dude
Jan 4, 1985
42,933
21,109
234
Box behind Walmart
May 16, 2026
#2
  • May 16, 2026
  • #2
You could google images of a T5 online. They're pretty distinct.

--or--

You could post images of yours and the dudes will tell ya.
 

3054tony

Member
Nov 9, 2023
49
17
18
Us
May 16, 2026
#3
  • May 16, 2026
  • #3
Noobz347 said:
You could google images of a T5 online. They're pretty distinct.

--or--

You could post images of yours and the dudes will tell ya.
Click to expand...
Honestly all the T5 pictures look the same to me . Everything i can find online to identify them are outside the car with the bellhousing off. Wasn't sure if there was a way to tell if it's a world class or not still installed.

I'll try to crawl under and get some pictures. It's pretty nasty under there after sitting in a humid garage 14 years
 

LILCBRA

I wish I didn't have all of these balls in the air
Mod Dude
Dec 6, 2005
6,333
5,306
194
Corn County USA
May 16, 2026
#4
  • May 16, 2026
  • #4
I don't think you can tell what version of the transmission you have without either having it out of the car and opening it up or having the tag.

In any event, this is a link that I find most helpful for ID'ing T5s. Maybe it could help you?


BritishV8: the site for enthusiasts of modified British sports cars

About classic British sports cars, performance mods, V8 engine swaps, MGB V8 conversions, et cetera
www.britishv8.org
 
Reactions: General karthief and 3054tony

KRUISR

10 Year Member
Apr 16, 2015
1,802
903
143
May 16, 2026
#5
  • May 16, 2026
  • #5
3054tony said:
I picked up a replacement on Craigslist 14 or 15 years ago and can't remember anything. It feels different than the original but no clue what car it came out of.
Click to expand...
Okay, so you bought a car 14/15 years ago that has been holding a transmission for future use (you said trans was still in the car). You have no clue what that car was (year, engine).

If the trans is to use elsewhere, just pull it and take some pics and post here - its worth a shot.
 

AeroCoupe

lube between the nut and the face. I know my lubes
Founding Member
Oct 28, 2001
5,804
3,938
183
Claremore, OK
May 16, 2026
#6
  • May 16, 2026
  • #6
There are casting numbers on the case and tail housing. The VIN number is also on the case. Google this .
 
Reactions: Shakerhood

nicholase

I lubed and pushed, until it was all the way in
May 21, 2024
619
1,097
103
New York
May 16, 2026
#7
  • May 16, 2026
  • #7
https://www.moderndriveline.com/how-to-tell-if-your-t5-is-a-world-class-or-non-world-class-version/
 

Mustang5L5

That is…until I whipped out my Bissell
Mod Dude
Feb 18, 2001
43,192
17,889
224
Massachusetts
May 17, 2026
#8
  • May 17, 2026
  • #8
There is a date code cast into the side case of the T5. While I realize at this point many T5s have been rebuilt a few times, so it’s not definitive, it’s one way to at least try to narrow down what year the T5 is front.

The date code will be a circle with a 2-digit number in it.
 
Reactions: 3054tony

3054tony

Member
Nov 9, 2023
49
17
18
Us
May 17, 2026
#9
  • May 17, 2026
  • #9
KRUISR said:
Okay, so you bought a car 14/15 years ago that has been holding a transmission for future use (you said trans was still in the car). You have no clue what that car was (year, engine).

If the trans is to use elsewhere, just pull it and take some pics and post here - its worth a shot.
Click to expand...
I bought the car in 03 as my first car then drove it daily until around 2010 when he transmission went out. Bought a transmission and new tires but never got around to installing. Had a spare truck to drive so I just parked the car, plates expired, life got in the way and car sat since then. Recently decided to get it back on the road so just slowly fixing things.

Can't remember the add really just said something along the lines of used mustang T5 transmission for $250.
 
Reactions: gkomo

3054tony

Member
Nov 9, 2023
49
17
18
Us
May 17, 2026
#10
  • May 17, 2026
  • #10
LILCBRA said:
I don't think you can tell what version of the transmission you have without either having it out of the car and opening it up or having the tag.

In any event, this is a link that I find most helpful for ID'ing T5s. Maybe it could help you?


BritishV8: the site for enthusiasts of modified British sports cars

About classic British sports cars, performance mods, V8 engine swaps, MGB V8 conversions, et cetera
www.britishv8.org
Click to expand...
Found a date, looks like 87 to me so assuming it should be a world class T5.
 

Attachments

  • 20260517_153209.webp
    275 KB · Views: 15
Reactions: Noobz347 and LILCBRA

Mustang5L5

That is…until I whipped out my Bissell
Mod Dude
Feb 18, 2001
43,192
17,889
224
Massachusetts
May 17, 2026
#11
  • May 17, 2026
  • #11
Yes. Likely an 87-89 spec T5 rated for 265 ft-lbs.

Of course, not guaranteed. Would need to open to confirm the gearset. Wasn’t uncommon to put the 90+ guts in these during a rebuild back when the gearsets were pretty cheap.
 
Reactions: Shakerhood and 3054tony

3054tony

Member
Nov 9, 2023
49
17
18
Us
May 17, 2026
#12
  • May 17, 2026
  • #12
Mustang5L5 said:
Yes. Likely an 87-89 spec T5 rated for 265 ft-lbs.

Of course, not guaranteed. Would need to open to confirm the gearset. Wasn’t uncommon to put the 90+ guts in these during a rebuild back when the gearsets were pretty cheap.
Click to expand...
Might be a while before I can get it out to look. It definitely has something wrong with grinding going into reverse so rebuild will be in the future
 

gkomo

now i can hopefully expect to receive the shaft
Aug 2, 2024
2,133
1,373
133
San Diego, CA
May 17, 2026
#13
  • May 17, 2026
  • #13
NeoMustang just posted a video (or maybe it was old but just showed up on my feed) of putting a GForce gear set (and case) in a T5. Supposedly holds 500hp. That would be pretty cool. Said the GForce case was hard to find though.
 
Reactions: 3054tony

3054tony

Member
Nov 9, 2023
49
17
18
Us
May 17, 2026
#14
  • May 17, 2026
  • #14
gkomo said:
NeoMustang just posted a video (or maybe it was old but just showed up on my feed) of putting a GForce gear set (and case) in a T5. Supposedly holds 500hp. That would be pretty cool. Said the GForce case was hard to find though.
Click to expand...
I did see that pop up as well. Haven't had a chance to watch it yet.
 

KRUISR

10 Year Member
Apr 16, 2015
1,802
903
143
May 17, 2026
#15
  • May 17, 2026
  • #15
Mustang5L5 said:
Yes. Likely an 87-89 spec T5 rated for 265 ft-lbs.
Click to expand...
Unless its a 4 cylinder. That you could check by putting it in 1st and rotating the input shaft and counting the output shaft rotations.
 
Reactions: 3054tony

AeroCoupe

lube between the nut and the face. I know my lubes
Founding Member
Oct 28, 2001
5,804
3,938
183
Claremore, OK
May 18, 2026
#16
  • May 18, 2026
  • #16
Or just look at the input shaft and if the tip where it engages the pilot bushing/bearing measures 0.590” it’s a four cylinder and I believe 0.668” for the V8 T5.
 

Mustang5L5

That is…until I whipped out my Bissell
Mod Dude
Feb 18, 2001
43,192
17,889
224
Massachusetts
May 18, 2026
#17
  • May 18, 2026
  • #17
I am assuming OP did an simple swap when he installed it and dodn't need to do anything special. That alone suggests to me the trans is a mustang application, and since he did not mention excessive vibration and not changing pilot bearings it's likely not a 4-banger T5.

I mean it could be...but just going off the info given at this point.
 
Reactions: 3054tony

3054tony

Member
Nov 9, 2023
49
17
18
Us
May 18, 2026
#18
  • May 18, 2026
  • #18
Mustang5L5 said:
I am assuming OP did an simple swap when he installed it and dodn't need to do anything special. That alone suggests to me the trans is a mustang application, and since he did not mention excessive vibration and not changing pilot bearings it's likely not a 4-banger T5.

I mean it could be...but just going off the info given at this point.
Click to expand...
I don't remember the add specifying what engine was in the car it came out of but it did go strait in mine with no issues
 

AeroCoupe

lube between the nut and the face. I know my lubes
Founding Member
Oct 28, 2001
5,804
3,938
183
Claremore, OK
May 18, 2026
#19
  • May 18, 2026
  • #19
Mustang5L5 said:
I am assuming OP did an simple swap when he installed it and dodn't need to do anything special. That alone suggests to me the trans is a mustang application, and since he did not mention excessive vibration and not changing pilot bearings it's likely not a 4-banger T5.

I mean it could be...but just going off the info given at this point.
Click to expand...
Op is looking to swap an unknown T5 into a V8 car that already has a T5.
 

Mustang5L5

That is…until I whipped out my Bissell
Mod Dude
Feb 18, 2001
43,192
17,889
224
Massachusetts
May 18, 2026
#20
  • May 18, 2026
  • #20
I thought it was already installed in his car and he said he did it 14-15 years ago.


Regardless. Moot point. All we can do is speculate at this point. Would need to drop trans and really inspect certain things to narrow it down.


All we definitively know at this point was the case was cast in 1987. That’s all
 
Reactions: 3054tony
  • 1
  • 2
Next
1 of 2 Next Last
You must log in or register to reply here.

Similar threads

T5 5th gear 89 gt
  • mac_55
  • Mar 19, 2026
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
Replies
2
Views
168
1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- Mar 20, 2026
Mustang5L5
Proper Transmission fluid for a 84nwc t5
  • Sask84gt
  • Mar 7, 2026
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
Replies
5
Views
372
1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- Mar 10, 2026
Sask84gt
R
electrical plug identification
  • redlineracing1328
  • Jun 11, 2026
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
Replies
1
Views
77
1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- Jun 12, 2026
keel
T
Newbie looking for some info on speedo gears
  • TDM389
  • Nov 15, 2025
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
Replies
3
Views
222
1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- Nov 16, 2025
TDM389
T
A
Help ID - Turbo GT, SVO differences
  • aldoelmalo
  • Jun 2, 2026
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
Replies
0
Views
58
1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- Jun 2, 2026
aldoelmalo
A
Share:
Bluesky Email Share Link
  • Mustang Forums
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
Menu
Log in

Register

  • Forums
  • What's new
  • Media
  • Resources
  • Contact
  • Sponsor
X

Privacy & Transparency

We use cookies and similar technologies for the following purposes:

  • Personalized ads and content
  • Content measurement and audience insights

Do you accept cookies and these technologies?

X

Privacy & Transparency

We use cookies and similar technologies for the following purposes:

  • Personalized ads and content
  • Content measurement and audience insights

Do you accept cookies and these technologies?