Will it fit?

[Nman]

Will the 4T45 E MN5 GM #4170 from a 2003 alero fit in my 2004 alero?

[sleepyalero]

Yeah.

[Nman]

Thanks my tranny blew up and I'm looking to get another one. Had to rebuild the heads, the water journals were clogged solid, it's definitely been a project.

[sleepyalero]

Nice good luck

[Shiwnath]

Thanks my tranny blew up and I'm looking to get another one. Had to rebuild the heads, the water journals were clogged solid, it's definitely been a project.

Wow. How my miles one the trans before it blew? I've been beating the crap out of mine since my engine build and she just hit 300,000 KM yesterday. Plus I think 03+ 4T45s were revised for longevity.

[Redog]

Unknown.

Will it fit? Yet, physhically everything will bolt up with no problems.

The "fitmnet" issue is with the programming. In 2004 GM went with a different transmission pump. It is unknown how that pump will work or react with 2003 and down programming. Otherwise I would have put a trans in from a 2007 Saturn with the 3.61 FDR, instead of the 2003 GAGT with the 3.29 FDR in my car two years ago

[Nman]

OK so the old tranny only had 150k on it, but I abused it hard. My dad drove 3 hours out to Maryland and 3 hours back to pick up another tranny, The problem is this tranny has a female connector on the passanger side where the cv shaft goes and my cv shaft is a female connector! The old tranny had males on both sides, this one only has a male on the left. It is out of a grand am. I do however have a cv shaft out of a chevy lumina that has a male end on it and I might be able to make it work. We will see tomorrow.

[nicothehut]

when i replaced my 03 tranny a few years back i was told by a used parts guy that the 03 was a 1 off year and only 03 fit in a 03..

[Nman]

So I got the CV shafts back in place, The end of the lumina shaft fit into place, but the shaft wasnt the right length. So I took the boots off of the CV shaft from the alero and the CV shaft from the lumina. Then I pulled the c clips off and pulled off the u-joints and swapped them. I had to swap the boots to because of the sizes. Then I swapped the knuckles, put it all back together and fit the alero CV shaft (now with a male end) back into the tranny. I have to order a coolant bypass pipe from GM and the car will be back together after that. I have pics of the rebuild, but they are on my old phone which broke so I'm trying to pull them off.

[sleepyalero]

Well atleast its coming together.

[Nman]

GM part will be here tomorrow, then insurance will be on it on Thursday. Does anyone know how to disable that beeper that plays when the door is open. I know it is tied into the speakers, but is it through the radio harness, or is there another wire running to the speaker?

[01OhioAlero]

It is a through the harness. Get a aftermarket harness or just match wires. If you get aftermarket without it or disable it you lose acc power.

[sleepyalero]

I have acc power on mine, but dont have chimes. I also didnt install the radio.

[01OhioAlero]

01 and up chimes are through the radio harness. 2000 and older dont. Which means 2000 and older you can install without a harness and be fine. 2001 and up you will need a harness or you wont have chimes, acc power or a few other things I forget about.