Aleromod.com - 99 sihlouette tranny in 03 alero?

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Also, keep in mind that the 3.61 and higher FDR transmissions are for stock 4 cyl cars, with a lot less torque than a V6. They may not be built as strong.

Remember, they are only going to build a transmission strong enough to stand up to the car it's on. If they can save 20 cents per tranny by using thinner bands/servos/etc, they'll do it

Personally, I think the gdam gt would be a cool edition. However, I'mm 800 into my whole car and I'm sure adding one more change to the already modified car would probably kill it for good lol.

whats wrong with the trans you have now?

Quote:

Originally Posted by Redog (Post 628436)

I've been doing a of of reseacrh on this in the past.

The 3.61 is going to rev the motor higher than the 3.29 when cruising at highway speeds. For me I was looking at what the car is going to cross the finish line at RPM wise.

With the 3.61, in 3rd, I would be in the area of 5500 RPM's vs around 4500 area with my current set-up. I could leave it in OD for the run but the shift points are still going to be high. I figure with the cam I'm going to use, and the fact the car is going to rev higher and quicker, plus crusing RPM @ 70 with the 3.29 will be about 2350 vs 1950 with the 3.05 right now. It will make it a very nice street/strip car, and more than likely in the high to mid 13's no problem (after the rebuild). Plus top speed of my car with the 3.29's should still be in the high 130's which I will never hit in a 1/4 mile. With the 3.61's it's only in the high 100's which is possible to hit after the rebuild and better gearing, if my goal is 13 flat

If he has his motor built and is driving the car to the track, 3.29 is a good gear to have. If he's building a "street" racing car / Fast and Furious / or track only car, sure go with the 3.61, hell go 3.90. Of course your top speed is going to suffer the higher FDR you go.

There are tons of these calculators on the net. I always use the one that is gives you the speed at the RPM after you plug in all the numbers including tire size. I can't find that one right now. They are for RWD cars, but I found that for a FWD car, they are pretty close, but not dead on (maybe off by 300 RPM or so)

Is it wise to drive continuously throughout town, or on the highway on flat roads in third gear? I hope that makes sense. It just seems like it would be bad to drive in one gear other than (drive) constantly, but I'm sure that is what they are for.

The motor and tranny I have now is from a car thar was litereally driven into a brick wall. The car poped up on a curb using the tranny pan and the owner drove it another 20mi leaking fluid everywhere. I bought the entire car for $150, threw a new pan and fluid in the tranny but I don't have reverse and it slips in forward gears

So now that my other issues are fixed, what does flashing the pcm involve? To swap the ga gt tranny into the alero. There is one in my area with 1,000 mi on it for 600$

Its will fit bolt for bolt but won't drive right? What would I tell the dealer? I need my pcm flashed to match an o3 ga gt? Friken dealer prices tho lol.

i doubt they would charge much, manwhore would be able to help more then i would, ill shoot him a text and tell him to stop in here.

Quote:

Originally Posted by happyisthealero (Post 628455)

3rd is actually drive and 4th is overdrive. Up until the early 90's a lot of cars only had 3 gears, back in the 60's and 70's if you had an auto trans, you only had 3 gears.

I only drive in 3rd down the track. On a road course 2nd or 3rd pending on the straight sections of the track, to keep the car in the RPM range for torque

Even w a bad tranny my 3rd pulls pretty good. Still shifts into 4th but likes to stay in 3rd lol

i smoked a s/c focus when my transmission was slipping really bad. :lol:

Haha, focus thinks its a car

Sleepy wanted me to tell you what I did for my gagt tranny swap.

1. Blow old tranny
2. Take it to tranny shop
3. They install a used alero tranny
4. Shit out after less than 300 miles go back
5. Shop says it will be a while since my exact tranny was on back order.
6. I say what about GA tranny, he says lemme check. He says yea we have one.
7. They put it in
8. car drives weird still
9. go back they change fdr
10. Car is more peppy.
11. ?
12. ?
13.profit?