Just wondering if anyone has put a my04 gearbox in a my00-03.How is it compared to the original gearbox?Anyone?I am replacing my gearbox and im considering a newer gearbox,but i've read some horror stories on this post on the my 04 units.Popping out of first?????Still grinding second?????

 

in my opinion its not a feasible move, as the 04 tranny has different gear ratios to match the torque and power curves of the 2.2l engine (F22c). From my perspective i do not think that the 04' tranny will match up well, or as well as the original 00-03 tranny on pre-04 model year s2000's.

 

I wonder if the USA 04 tranny is the same as the JDM or Euro tranny. Because they still use the F20 in japan and euro for 2004/5 but they have new lower gearing.

 

It has been done and the owner (Hcash) reports he likes it and the resulting ratios.

 

I just did it last saturday. The tranny matches up to the engine with no problems. The reported ratios as compared to the ratios of a pre 04 tranny are 4% lower for 1-4th or 5th gear. All because of a change in the secondary reduction gear. Everything else I forgot right now what the percentage differences are for 5th and 6th gear. And that is with 4.57 gears on top of it. I think its a nice compliment to my gears.

The only thing to do is to change the 04 companion flange for your old 03 or older flange.

 

hows the transmission shifting with the newer box?any grinding gears?popping out of first?thanks!!!

 

All mounts perfectly, as Venom and I did his together. I've done the math, here's the deal....the 04 has lower (numerically higher) gears in 1-5 (just a little bit, like having the equvalant of say 4.30 gears in the rear). SIXTH gear is a little taller than 00-03, meaning you'll drop a hundred or two RPMs at any given speed. Rear flange swaps out in a minute or two. I already have one on the way for my car.

 

His unit had FIFTEEN miles on it when he put it in, so I'd hope he'd have no issues. There's a few more on EBAY ( this is where Venom got his, I know and back the seller 100%) For 1500, these came out of 04 S2000's that were wrecked in shipping before they ever came off the truck!

 

Yeah, what Bill said... no problems as of yet. shifting like butter with no grinding...

 

sounds like a good deal...only prob is getting rid of the old tranny...