Convert Automatic 3.4 1999 Alero to Manual Transmission

[Alerodriver17]

What manual transmission directly fit the 1999 V6 Alero? Has anyone converted a 1999 V6 Automatic Alero to Manual? How hard was it? What will I need?

[That01Olds]

The only manual transmission that was available on the Alero from the factory was a 5-Speed Getrag F23 manual and it was only available on the 4 cylinder models. It's also kinda rare.

As for the V6 Alero. Only 3 members that I know of on this forum have done an automatic to manual swap. They're as follows SleepyAlero, Mfuller (he's not active on the boards anymore unfortunately), and I believe Babyblue? They all used the 6-Speed F40 manual transmission from the Pontiac G6 though. Hopefully one of them will see this and they can chime in and tell you more about what it entails and the process of doing so cause it is a process lol. Hope that helps.

[sleepyalero]

Instead of spending all that money to swap it, you can just buy my already swapped 3400 6 speed alero.

[Alerodriver17]

"The only manual transmission that was available on the Alero from the factory was a 5-Speed Getrag F23 manual and it was only available on the 4 cylinder models. It's also kinda rare. "

Yea I understand that. Haven't been able to find any that are specific to Alero.

"Instead of spending all that money to swap it, you can just buy my already swapped 3400 6 speed alero."

I would but I can't travel to get it and I've already put loads of money in plastidip and rust repair in the one I've got. I was able to find a 5 speed from a 2005 Chevy Cobalt for only $100 would that work for an Alero? Or does it have to be from a G6? What year of G6 did you get yours from? How much was it? What supplies and parts did you need? How long did it take you to complete?

[sleepyalero]

2007 g6,

Cobalt i believe wont work unless it has the f23. Idk anything about the 5 speed swaps.


You need clutch pedal, flywheel, pressure plate, clutch, trans, shifter, cables, and 3 custom tranny mounts, one has to be welded in, a guy did my swap years ago, took 6 months.

If you did it on your own, you are looking at about 4000$

[Alerodriver17]

Well in that case, if you're actually selling your Alero, what are you looking for out of it?

[sleepyalero]

6000 or best offer. The car is worth more in parts honestly.


List of whats done to it, and whats been done in the last 3 years.


- custom carbon fiber cowl hood
- SCT spoiler
- Grand am dual post mirrors
- ASA GT5 wheels
- camaro calipers
- impala rotors (big brake kit)
- stainless braided brake lines
- aem a-pillar gauges
- milzy headers
- cold air intake
- egr delete
- cat delete
- 2.5 in exhaust
- flowmaster muffler
- ported upper and lower intakes
- plenum spacers
- 65mm throttle body
- modified heater tube.
- window tint
- 6 speed manual swap
- tune
- sparco torino 2 racing seats
- kyb gr2 struts
- canuck springs
- 8000k hids
- black housing headlights
- turned gauge bulbs to red

I think thats about it...

And for fun, what i did to the car 3 years ago.

- new transmission (2nd gear synchro went)
- new rack and pinion (was fine, but easier to replace with engine out while doing transmission swap.
- new inner/outer tie rods
- new lower control arms with all bushings
- new coolant
- new coolant tank
- new water pump
- new power steering pump
- new lower intake gasket
- new wheels (ones on currently)
- rebooted cv axles
- all new wheel bearings front/rear
- alignment
- new radiator
- new coolant hoses
- painted calipers (current color)
- new clutch
- new dual mass flywheel
- new pressure plate


I think thats it... i overkill it on keeping things nice and up to date.

[tw0123]

you can use the f23 from a cobalt but need the bell housing from a 2000 cavalier with the 2200 non ecotec motor

[tw0123]

There's actual a thread on the group from a member named HEC who has done the 5speed swap for under 1000... If you know how to weld you can do it very cheaply!!

Search up his threads, and there's pictures and everything!!

[That01Olds]

Originally Posted by Alerodriver17

"The only manual transmission that was available on the Alero from the factory was a 5-Speed Getrag F23 manual and it was only available on the 4 cylinder models. It's also kinda rare. "

Yea I understand that. Haven't been able to find any that are specific to Alero

Yeah, like I said they're harder to find. That's for sure lol. There are some out there you just have to look and it may take some time if you want one that's like that from the factory. You also may have to be willing to travel to pick it up if you do find one.

[Alerodriver17]

"member named HEC"
"Search up his threads, and there's pictures and everything!!"

Can't find any. Mind linking me to some?

[Alerodriver17]

And one more question,
Will these fit my Alero? It curently has the stock 225 50 R16 rims on it.

https://www.ebay.com/itm/302192600064

[00redse]

http://www.aleromod.com/forums/showthread.php?t=38666

[Alerodriver17]

But that's a 3500 motor. I have the 3400. Unless it works the same?

[00redse]

same

[Alerodriver17]

Plus its a Pontiac? Well I assume that wouldn't matter because Pontiac is a GM company so yeah.

[Alerodriver17]

I wanna do this. Can you help me out and provide online links to parts that would work? I'd greatly appreciate it.

[00redse]

I believe that the best help I, or anyone, can offer is to tell you to use the search feature on this site. Spend some real time looking at the builds you want to emulate, and do a lot of research.

I will say that milzy motorsports has a lot of good reviews from people here. I have never dealt with them myself, but they offer the parts you desire. http://www.milzymotorsports.com/
Tuning will be key. Learn about hp tuners. Or hire someone who can tune it for you.
It all comes down to money. Modding isn't cheap. Do you have fat stacks of cash you want to drop on this car? Turbos and tranny swaps aren't cheap. Most start with smaller stuff, and work up to a bigger project after learning more about the car and what's available, and what their skill levels are.

I will say "Welcome to the forums" and wish you luck in your search.

[tw0123]

stay far away from milzy!!! His parts are great, customer service and timelines suck!!!

You'll have to search for the parts you want, mostly junk yard finding now given the age of these vehicles...

Good luck!!

[sleepyalero]

You may as well just buy one already done up. Lol cheaper that way. And if you ever get tired of it it can be parted out for more then you paid.