• Mustang Forums
  • 1965 - 1973 Classic Mustangs -General/Talk-
  • Classic Mustang Specific Tech

T5 tranny

  • Thread starter Thread starter jahen65
  • Start date Start date Sep 29, 2004
J

jahen65

New Member
Sep 29, 2004
16
0
0
ontario
Sep 29, 2004
#1
  • Sep 29, 2004
  • #1
i really want to replace my mediocre c4 tranny with a t5 tranny, but im wondering whether i buy a new one or rebuild a used one (say from a early 90's mustang) would make a difference. i guess what im really asking is will a rebuilt one fit just like a brand new t5?
 

golf4283

Active Member
May 30, 2003
1,253
1
39
Orland Park, Illinois
Sep 29, 2004
#2
  • Sep 29, 2004
  • #2
the fit will be the same. The strength of the trasnmission will differ though depending on whether you use a stock T5 or a Tremec TKO and the likes. It all depends on how much power you plan on putting through it.
 
J

jahen65

New Member
Sep 29, 2004
16
0
0
ontario
Sep 29, 2004
#3
  • Sep 29, 2004
  • #3
k

so would it be a good idea to just buy a used one and rebuild it to whatever horsepower and torque im gonna put through it. or would it be better to just buy a new t5 tranny. my only concern is the total money spent on the tranny.
 
I

iamlance

New Member
Sep 18, 2004
127
0
0
Sep 29, 2004
#4
  • Sep 29, 2004
  • #4
BUY NEW!!!!! I just finished my T5 conversion today with a used transmission. Back it out of the shop, put it in first and it jumps out of first and grinds a pound of gears. I drove it , starting out in 2nd , shift into 3rd , look ma, no synchros , shift into 4rth , no synchros there either. I'm so pissed!!! It is guaranteed , but I don't want to do this 10 times till I get a good trans.
 
J

jahen65

New Member
Sep 29, 2004
16
0
0
ontario
Sep 29, 2004
#5
  • Sep 29, 2004
  • #5
wow. that sucks man, did u have it rebuilt or did u just put in a used t5. anyone else have opinions, this would help a lot.
 

golf4283

Active Member
May 30, 2003
1,253
1
39
Orland Park, Illinois
Sep 29, 2004
#6
  • Sep 29, 2004
  • #6
i would also suggest buying new but if money is tight you can try your luck at a used one. Im sure there are many used ones around that are more than able to be used right out of the previous car.
 
I

iamlance

New Member
Sep 18, 2004
127
0
0
Sep 29, 2004
#7
  • Sep 29, 2004
  • #7
I went with used. It was out of a 93 which has a higher torque rating than the earlier units. A lot of good it did me. Oh well, 2 arms , 2 legs, 2 eyes , 2 ears. Life is good!! It's just a car.
 
J

jahen65

New Member
Sep 29, 2004
16
0
0
ontario
Sep 29, 2004
#8
  • Sep 29, 2004
  • #8
i guess ur right, any opinions on where i can get a t5 for a good price
 

SandSprite

Member
Feb 8, 2003
332
0
16
L.A., CA
Sep 29, 2004
#9
  • Sep 29, 2004
  • #9
Got my used 89 trans for $30. That's a steal though. The guy selling it said it whined-- he wasn't kidding, but it's been in service for more 2 years and has been to the strip a few times.

If you are in ontario, california-- look in the recycler for a tranny. that's where i found mine.
 
J

jahen65

New Member
Sep 29, 2004
16
0
0
ontario
Sep 29, 2004
#10
  • Sep 29, 2004
  • #10
thats weird i had just sent u a private message right before you replyed to the thread. anyway yeah i actually live in ontario california. did you ever have any problems with that used t5?
 

SandSprite

Member
Feb 8, 2003
332
0
16
L.A., CA
Sep 30, 2004
#11
  • Sep 30, 2004
  • #11
It grinds into 2nd at high RPM. Other than that, it usually works good. I got the 89 cause it was cheap. I would like to get a 90+, or better yet a cobra one. I really think the ratios are better in the cobra tranny (2.95 1st, .63 5th). The guy delivered it for free since he worked near my parents' house in LA. I had to get a bell for it and I also bought a B&M Ripper shifter. I highly doubt you will find one for $30 though.
 
J

jahen65

New Member
Sep 29, 2004
16
0
0
ontario
Sep 30, 2004
#12
  • Sep 30, 2004
  • #12
why did you need to get a new bell? what engine did u use it on? i have a 289 but it is not the origional and i dont know what year it is. yeah thanks for telling me about the recycler i actually found a lot of t5s cheap, what do u think about getting a t5 off of ebay?
 

SandSprite

Member
Feb 8, 2003
332
0
16
L.A., CA
Sep 30, 2004
#13
  • Sep 30, 2004
  • #13
If you get one on ebay, shipping is gonna be a lot. There are some great deals in the recycler if you look for awhile. I had to get a bell cause for $30 the guy didn't include one with the tranny. The bell was $40 from a different guy on the recycler.

I had to buy a new flywheel and clutch kit for mine. I have a roller cam 302 though. My old flywheel was too large for the t5 bell. The 157 tooth flywheel fits in the T5 bell. If you have a 289, you will need a 28 oz imbalanced flywheel.
 

Glen's 1965 5.0

Founding Member
Feb 5, 2001
477
0
0
Tomball,Texas
Sep 30, 2004
#14
  • Sep 30, 2004
  • #14
As a builder of T5’s I think a used one is fine. Especially with upgrades like the cobra gear set and a countergear stabilizer.


Like all things made by a human being anything can go wrong. I would check with folks in the Fox body crowd to find a reputable builder.
 
C

Cliff Yates

New Member
Jun 25, 2004
23
0
0
n. ca.
Oct 4, 2004
#15
  • Oct 4, 2004
  • #15
look here

most of the awsers you need are on is site

//www.moderndriveline.com/[/URL]

http://moderndriveline.com/Technical_Bits/tech_alley.htm
 
You must log in or register to reply here.

Similar threads

K
3.8 T5 & Bellhousing to 1987 Lincoln 5.0
  • ks65stang
  • Mar 2, 2026
  • Other Auto Tech
Replies
3
Views
434
Other Auto Tech Mar 3, 2026
Noobz347
For Sale Borg Warner WC T5, Stock Bell Housing, RAM Clutch Set, Double Hump Cross Member, & Pro 5.0 Shifter
  • AeroCoupe
  • Aug 9, 2025
  • Drivetrain Parts
Replies
3
Views
790
Drivetrain Parts Sep 7, 2026
AeroCoupe
F
T5 transmission questions
  • Forddestroyer96
  • Aug 27, 2025
  • SN95 V6 Mustang Tech
Replies
0
Views
232
SN95 V6 Mustang Tech Aug 27, 2025
Forddestroyer96
F
Engine Suggestions on an engine rebuild. Stock cam/GT40Ps or aftermarket on both for a fun weekend driver?
  • MadSquirrelTech
  • Apr 28, 2026
  • Fox 5.0 Mustang Tech
  • 2
Replies
23
Views
1K
Fox 5.0 Mustang Tech May 7, 2026
MadSquirrelTech
Fox Xtremely high fuel consumption
  • PonyGTrider
  • Apr 11, 2026
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
  • 9 10 11
Replies
213
Views
5K
1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- May 9, 2026
PonyGTrider
Share:
Bluesky Email Share Link
  • Mustang Forums
  • 1965 - 1973 Classic Mustangs -General/Talk-
  • Classic Mustang Specific Tech
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?