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  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
  • Fox 5.0 Mustang Tech

Tremec tranny install now its slow

  • Thread starter Thread starter gt40p
  • Start date Start date Aug 22, 2009
G

gt40p

New Member
Aug 12, 2009
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Aug 22, 2009
#1
  • Aug 22, 2009
  • #1
picked up a world class tremec for dirt cheep brand new it use to be able to blow the tires off through second now it will only chirp
1 2.95, 2 1.94, 3 1.34, 4 1.1, 5 .63
i know that the gears are lower than the stock ones didnt think it would be that much of a difference
SO what diff gear for the rear still the 308 back their
 
8

87AODGT

Founding Member
Jan 6, 2001
373
1
19
Toms River, NJ
Aug 22, 2009
#2
  • Aug 22, 2009
  • #2
thats just because you were able to really get them cookin with the 3.35 1st gear that you used to have, get a set of 3.73s and see how it feels then
 
G

gt40p

New Member
Aug 12, 2009
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Aug 22, 2009
#3
  • Aug 22, 2009
  • #3
yea i knew that the 1st would hurt it but do you think with the 5th gear i should go with 410?
 
8

87AODGT

Founding Member
Jan 6, 2001
373
1
19
Toms River, NJ
Aug 22, 2009
#4
  • Aug 22, 2009
  • #4
4.10s are great, I just don't recommend them for most people in case they're going on the highway all the time. I didn't have a problem with 4.10s in my last car but that's just me
 
G

gt40p

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Aug 12, 2009
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Aug 22, 2009
#5
  • Aug 22, 2009
  • #5
not my daily driver some people say their too much with a stock bottom end
 

2000xp8

SN Certified Technician
Aug 8, 2003
8,024
1,616
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Aug 22, 2009
#6
  • Aug 22, 2009
  • #6
If that is truely the gearing you have in the trans, you can use 4.10's for normal driving.
When i went to the 600, the long first bugged me, if you have a ton of power it's not a big deal, but if you are under 400rwhp it feels way too long.
a .63 overdrive leaves you at a pretty low rpm, that's why you could get away with the 4.10's.

I was going to go the 4.10 route over 3.73's, but i've decided to just add a few more hundred hp instead.
 
G

gt40p

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Aug 12, 2009
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Aug 22, 2009
#7
  • Aug 22, 2009
  • #7
stock bottom end gt40p set up p$p .040 sheved ect.,got to re gear it dont have 200 more hp in the buget yet the 1st is a big difference then the stock t5, i put the tranny in whan the motor was all stock it was a dog!!!!!
 

CRASH7772

Member
Apr 27, 2003
401
1
16
NH
Aug 23, 2009
#8
  • Aug 23, 2009
  • #8
I know my 87GT with H/C/I 3.55's spins in 1st and 2nd with my TKO and that's with an aluminum flywheel. My cousins stock H/C/I aluminum flywheel 89GT doesn't light them up but it does hook and go 3.08's (also TKO).
 

LarsD

Founding Member
Jul 2, 2002
2,680
119
123
Texas
Aug 23, 2009
#9
  • Aug 23, 2009
  • #9
I ran 4.10's in my old 89 with a T5-Z that has a .64 5th and it cruised on the highway easily. If you arn't planning on boosting the car later I would put 4.10's in it.
 

millhouse

Founding Member
May 14, 2002
1,985
0
46
Simpsonville, SC
Aug 24, 2009
#10
  • Aug 24, 2009
  • #10
Is there something I'm not getting here? All 87-93 mustangs came with a "world class" t-5 with a 3.35 first gear. If you did infact swap it out with another "world class" t-5, nothing should have changed.
 

Mustang5L5

That is…until I whipped out my Bissell
Mod Dude
Feb 18, 2001
43,249
17,934
224
Massachusetts
Aug 24, 2009
#11
  • Aug 24, 2009
  • #11
millhouse said:
Is there something I'm not getting here? All 87-93 mustangs came with a "world class" t-5 with a 3.35 first gear. If you did infact swap it out with another "world class" t-5, nothing should have changed.
Click to expand...


You are right. All Mustangs since 1985 have used the WC T-5....5.0, 2.3L, 3.8L and the new 4.0 V6 use a World Class T-5.

The Z-spec T-5 is the 2.95 geared T-5. A lot of guys call it the WC t-5 incorrectly.

Also, Tremec is a brand. There are 8 Tremec transmissions for the Mustang
 

ShortThrow50

Member
Oct 22, 2006
923
2
16
Pa
Aug 24, 2009
#12
  • Aug 24, 2009
  • #12
Yeah thats gonna happen with that tko. The TKO WILL eat close to about 20 hp over a a regular t5 and that is proven on dynos. They are heavier and beefier of course. Before I installed my TKO, i installed 3:73's. Now you need a more mods just to make up for it.
 

Mustang5L5

That is…until I whipped out my Bissell
Mod Dude
Feb 18, 2001
43,249
17,934
224
Massachusetts
Aug 24, 2009
#13
  • Aug 24, 2009
  • #13
except he didn't put a tko in i beleive.

He put a T-5 in.


That's why i said calling a trans a "tremec" is a bad idea...because there are 8 of them
 

90lxcoupe

20+ Year Stangneter
Oct 7, 2003
3,596
350
134
Aug 24, 2009
#14
  • Aug 24, 2009
  • #14
Mustang5L5 said:
except he didn't put a tko in i beleive.

He put a T-5 in.


That's why i said calling a trans a "tremec" is a bad idea...because there are 8 of them
Click to expand...

werent the t-5's in are cars made by borg-warner?
 

Mustang5L5

That is…until I whipped out my Bissell
Mod Dude
Feb 18, 2001
43,249
17,934
224
Massachusetts
Aug 24, 2009
#15
  • Aug 24, 2009
  • #15
Until 1997. Then Tremec bought them and now makes them as Tremec T-5's

The T-5, T-45 and T-56 were all originally Borg Warner transmissions.
 

ShortThrow50

Member
Oct 22, 2006
923
2
16
Pa
Aug 24, 2009
#16
  • Aug 24, 2009
  • #16
Mustang5L5 said:
except he didn't put a tko in i beleive.

He put a T-5 in.


That's why i said calling a trans a "tremec" is a bad idea...because there are 8 of them
Click to expand...

oh lol. my bad
 
G

gt40p

New Member
Aug 12, 2009
21
0
0
Aug 24, 2009
#17
  • Aug 24, 2009
  • #17
it is a t-5 its a tremic brand got it with alot of other parts i dont know whare the guy bought it from he said he paid 1400 for it, not from a factory car it came with a gold short shifter on it
the #'s i pulled off it were
13-52-065-922
13-52-66-939
13 52 251 07505
 

2000xp8

SN Certified Technician
Aug 8, 2003
8,024
1,616
194
NJ
Aug 24, 2009
#18
  • Aug 24, 2009
  • #18
I like to use this to see what the trans is from.
Identifying and Assembling a T5 5 Speed
One of yours seems to be the casing number.
One goes to an 84 capri
And the other says 93 or older world class.
 
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