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  • 1996 - 2004 SN95 Mustang -General/Talk-
  • SN95 4.6L Mustang Tech

t-45 vs. 3650

  • Thread starter Thread starter fast97gt
  • Start date Start date Apr 16, 2008

fast97gt

Active Member
Jan 2, 2007
1,082
2
49
north carolina
Apr 16, 2008
#1
  • Apr 16, 2008
  • #1
will the 3650 5spd work in my 97gt with no probs, direct bolt, so on so forth?, if so whats the easiest way to tell the 3650 vs. the t45
 
S

Smokeurhonda

New Member
May 1, 2003
457
0
0
Maryland
Apr 16, 2008
#2
  • Apr 16, 2008
  • #2
In order to use the 3650 in a 97 you need a 3650 clutch and flywheel. Easiest way to tell is either get under there and look. 3650 will be beefier and typically be tagged tremec. Also look at the door code.
 

Mustang5L5

That is…until I whipped out my Bissell
Mod Dude
Feb 18, 2001
43,365
18,109
224
Massachusetts
Apr 16, 2008
#3
  • Apr 16, 2008
  • #3
Technically they are both Tremec transmissions. Borg warner was bought about 1997-1998 and transfered the T-5, T-45 and T-56 line over to Tremec. Trans made before those dates have BW on them and after them will have Tremec.



Easiest way to tell?? 3650 drain plug points straight down to the ground. T-45 drain plug points to the side
 

laserstang21

New Member
Feb 4, 2007
79
0
0
luling, La
Apr 16, 2008
#4
  • Apr 16, 2008
  • #4
the 3650 holds more trans fluid and is bigger. i put one in my 2000 gt and it was a direct bold in. didnt have to move anything and it feels sooo much better than the t-45
 
J

Jbauer

New Member
Jan 20, 2008
506
0
0
Apr 16, 2008
#5
  • Apr 16, 2008
  • #5
it was a 'direct bolt in'?
 

Mustang5L5

That is…until I whipped out my Bissell
Mod Dude
Feb 18, 2001
43,365
18,109
224
Massachusetts
Apr 17, 2008
#6
  • Apr 17, 2008
  • #6
Unsure if the spline count on the trans is the same. The 3650 is paired with an 11" clutch and flywheel like the previous Cobras while the t-45 uses a 10.5"
 

jivepepper

Founding Member
Jun 19, 2002
776
5
18
Under a Sombrero. in WV.
Apr 17, 2008
#7
  • Apr 17, 2008
  • #7
Smokeurhonda said:
In order to use the 3650 in a 97 you need a 3650 clutch and flywheel. Easiest way to tell is either get under there and look. 3650 will be beefier and typically be tagged tremec. Also look at the door code.
Click to expand...

A 10.5" clutch from a car that had a t45 in it previously will work fine.
I run a flywheel from a 2000 with a tr3650 from a 2002.

Jbauer said:
it was a 'direct bolt in'?
Click to expand...

Yes it is.

Does the 97's have an mechanical or electric speedometer? You might have a problem there.
 

steedastangt

Founding Member
Aug 29, 2001
141
0
0
newbraunfels,tx
Apr 17, 2008
#8
  • Apr 17, 2008
  • #8
get an extended range speed-cal. New driveshaft as well. Everything else should be fine.
 

jivepepper

Founding Member
Jun 19, 2002
776
5
18
Under a Sombrero. in WV.
Apr 17, 2008
#9
  • Apr 17, 2008
  • #9
steedastangt said:
get an extended range speed-cal. New driveshaft as well. Everything else should be fine.
Click to expand...

Why would he need a new driveshaft?
 

steedastangt

Founding Member
Aug 29, 2001
141
0
0
newbraunfels,tx
Apr 21, 2008
#10
  • Apr 21, 2008
  • #10
jivepepper said:
Why would he need a new driveshaft?
Click to expand...

I was just guessing they were different in length. I have not done a t-45 to 3650 swap. Just my aode to 3650 which called for a new one.
 

jivepepper

Founding Member
Jun 19, 2002
776
5
18
Under a Sombrero. in WV.
Apr 21, 2008
#11
  • Apr 21, 2008
  • #11
steedastangt said:
I was just guessing they were different in length. I have not done a t-45 to 3650 swap. Just my aode to 3650 which called for a new one.
Click to expand...

nope goes right in.
 
M

mareospeedwagon

New Member
Nov 2, 2004
16
0
0
Apr 21, 2008
#12
  • Apr 21, 2008
  • #12
swap

Just put a t3650 and an 03 mach 1 engine into my 98gt, the cross memeber needs to be notched out to fit the t3650 however, some people say they have had vibration problems due to not notching the proper angle. I am going to try the crossmember for a t3650 and see if it mounts to the 98
 

steedastangt

Founding Member
Aug 29, 2001
141
0
0
newbraunfels,tx
Apr 21, 2008
#13
  • Apr 21, 2008
  • #13
mareospeedwagon said:
Just put a t3650 and an 03 mach 1 engine into my 98gt, the cross memeber needs to be notched out to fit the t3650 however, some people say they have had vibration problems due to not notching the proper angle. I am going to try the crossmember for a t3650 and see if it mounts to the 98
Click to expand...

I had vibration but eventually went away. Let us know if it works!
 
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