how can i tell what trans i have?

mustangkid05 · Oct 22, 2006

i have a 2001 gt and i heard they changed to t3650 in mid 2001 so how do i know if i have it ?

thanks

BlackenedSVT · Oct 22, 2006

early models had the T45, late models had the 3650. What is the production month of your GT?
(it will say on the driver side door sill on the "information plaquard")

Jsun3701 · Oct 22, 2006

Does it grind into second or third in cold weather?

BlackenedSVT · Oct 22, 2006

Jsun3701 said:
Does it grind into second or third in cold weather?

Actually, I've NEVER had that problem what so ever. I must have a factory freak trans, cause 60k on it and its still goin strong!

twogts4us · Oct 22, 2006

Ck this link - it tells you how to easily read the VCL sticker on the driver's door post. (Under the "TR" heading, you'll see a "6" for a T-45 or a "K" for the TR-3650.)
And, IMO, the 3650 is world's better than the 45. Got both...
http://web.tampabay.rr.com/theflock/mustang/doorplate.html

triggz · Oct 22, 2006

If you look under the car and see the drain plug on the lower passenger side of the tranny, its the T45.

mustangkid05 · Oct 22, 2006

it sais 02/01 so im guessing its a t-45??

Mustang5L5 · Oct 22, 2006

mustangkid05 said:
it sais 02/01 so im guessing its a t-45??

On the door tag under TR you only have two options for codes

6 = T-45
K = 3650

Dope 97GT · Oct 22, 2006

post some pics of your car please.

Mike97gt · Oct 22, 2006

check the door tag or if you want post your VIN # and I can run it and tell you what it has.

twogts4us · Oct 23, 2006

Mustang5L5 said:
On the door tag under TR you only have two options for codes

6 = T-45
K = 3650

I spelled it out, Mustang5L5 spelled it out...stop guessing and look at the VCL tag on your door - it's that simple.

Dope 97GT · Oct 23, 2006

he has to have a car to have a tranny

mustangkid05 · Oct 23, 2006

ok its said 6......so is the t-45 better then 3650?

BlackenedSVT · Oct 23, 2006

mustangkid05 said:
ok its said 6......so is the t-45 better then 3650?

No the T3650 is better and stronger

BurningRubber · Oct 23, 2006

Yes and no.

The T-45 doesnt have the issues that the 3650's seemed to be plauged with.

The T-3650 is stronger though, but the T-45's are still stronger than the old T-5's... which is all that matters, hahaha.

My T-45 is doing allright with 100k on it. Its definatly not the most refined trans, but its fine for me. The T-45's have a slightly higher 5th gear, so they tach a little higher on the highway... but not much.

BlackenedSVT · Oct 23, 2006

If you install an aftermarket short shifter in your T45, i think you will have to add in shift stops for the gears...which can be annoying (since i didn't have to do that at all in my 3650)

Mustang5L5 · Oct 23, 2006

BurningRubber said:
The T-45's have a slightly higher 5th gear, so they tach a little higher on the highway... but not much.

Early 3650's have the same 5th gear as thre T-45

It's the 2003+ 3650's which have the taller 5th gear...0.63. It's the same as the Cobra's 6th gear.

It's really low and sometimes annoying to shift into since it's a 1500RPM drop while every other gear is about a 1000RPM drop (if you were to shift at 3000RPM)

It is pretty cool cruising at 2000RPM at 80MPH

BurningRubber · Oct 23, 2006

Mustang5L5 said:
Early 3650's have the same 5th gear as thre T-45

It's the 2003+ 3650's which have the taller 5th gear...0.63. It's the same as the Cobra's 6th gear.

It's really low and sometimes annoying to shift into since it's a 1500RPM drop while every other gear is about a 1000RPM drop (if you were to shift at 3000RPM)

It is pretty cool cruising at 2000RPM at 80MPH

Sweet, didnt know that.

I guess thats why alot of guys dont fear the gear with that kind of 5th.

BennyBlown2v · Oct 23, 2006

twogts4us said:
Ck this link - it tells you how to easily read the VCL sticker on the driver's door post. (Under the "TR" heading, you'll see a "6" for a T-45 or a "K" for the TR-3650.)
And, IMO, the 3650 is world's better than the 45. Got both...
http://web.tampabay.rr.com/theflock/mustang/doorplate.html

I agree 100%. My 3650 has withstood alot thus far...but we'll see what it can do with slicks and built rear...I wouldn't be suprised if I eat an input shaft.

3650 is a good upgrade from t45, TKO500/600 are also good but have their problems, and T56 is a great unit.

Mustang5L5 · Oct 23, 2006

Yeah, it helps out a lot.

I still have stock 3.27's, so 5th gear is useless to me unless i am driving on the interstate at high speeds. At 50-60MPH it's revving so low in 5th it's gutless and i just rather keep it in 4th. I need to get up to 65+ in order to shift to 5th and have decent response

how can i tell what trans i have?

mustangkid05

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