is it enough of a change to make it worth the swap?



hmm im not actually sure on the 3.42 thing i looked up the code in my glove box and i have the 3.xx gears not the granny 2.xx

 

A4 cars did not come with 3.42's, only manuals did. Auto cars either came with 2.73 or 3.23. Check your door sticker with all the codes on it. GU2 is for 2.73, GU5 is for 3.23.

 

I'm not sure what ratio you have. I do know that you can spot the cars with the less than stellar gears by the lack of a low gear position on the gear select indicator. I'm thinking it was the 93's that had a 3.23 ratio. But that may have been specific to the 6 speed cars since they had a deeper set of gears for 1st-3rd. Don't know for sure.

If you're thinking it doesn't seem like enough of a jump to go from 3.42 to 3.73, it'll be a serious kick in the pants! With an A4, that would be as high as I would go. From my personal experience, 4.10's are too deep for an auto trany if it's a daily driver.

 

that was it... 3.23

i knew it was the 3 something.

 

well good, since it will be a serious kick in the pants....... it shall be my next mod.


am I going to have to screw with the computer again if i change the gears? I just got it tuned.

 

PCM needs to know the gear ratio.

Going from 3.23's to the 3.73's will make it feel like you added 15% more rear wheel torque.

 

damn i am getting gears now I thought i was good with 3.23's

 

some tuning places will reflash your pcm if it's within a certain window of you getting your car tuned.

ask the person who tuned your car if they would just change the ratio real quick... it takes a whole 3 seconds and even a novice can do it.

 

well its a done deal then. i've already got my eye on a set of gears and install package from thunderracing.com

guy also said i should get some axle bearings since i have 100,000 on my car.

 

I just got a mail order from trifecta.... gears will probably be 30 days away and they'll do retunes.


I guess my speedo will be really screwed up untill I get it done but thats all right?

 

those gears will really wake up your car. I want 3.90's or 4.10's for mine but fear the rearend will kill over. how good was that mail tune from trifecta? I'll be needing a tune soon.