2 questions.

[theman53]

AUG trannyis what you want. came off of certain aaz powered cars

http://www.scirocco.org/gears/

ACN is the 'prefered' box for something you can buy without messing with it for a TD. I think it should bolt into mk1 and mk2. If you have mk1 then FF or FN are the ones to go for.

[DogDiesel]

Have a 3:67 ASF with .75 removed and .71 installed. 
Still rev'd to high for my AAZ.   
Added 155x15 tires and now my 55mph rpm is 2450. 
Overall drop of 600 rpm over the FF.
Don't have to downshift due to power loss.
Caddy will pull cruise control at any speed in 5th above 35 without drooping on grades.
Driveability and smoothness improvement very noticable.
Wayne

[8v-of-fury]

I have a 3.94 / .71 7A trans on my AAZ, it is not by any means to high of RPM. It also runs a 175-70-13 tire.

[tyb525]

I have a 4-speed GP trans in my '81, I know a lot of people hate 4 speeds but I don't mind it, I don't expect my NA to be a sports car if you are into wide-ratios this is it. 3.89 final and 0.71 4th, gives me about 3000 rpm at 75 MPH with 155/80/13 donuts. I'd like try a 5 speed in my car just to see how much better it is though.

[libbydiesel]

I have the later FF in my Rabbit with a 1.6TD and find it plenty tall.  With stock tires it will go over 40 in second gear...  3,000 rpms @ 75 MPH.  Sounds good to me... 

[mystery3]

I have the later FF in my Rabbit with a 1.6TD and find it plenty tall.  With stock tires it will go over 40 in second gear...  3,000 rpms @ 75 MPH.  Sounds good to me... 

Do you find the gap between fourth and fifth to be excessively large? I run 185/60r14.

[8v-of-fury]

It is not that large in the FF, I drove one of those trannies on a 1.6 NA and it did alright.

[ORCoaster]

Added 155x15 tires and now my 55mph rpm is 2450.

What is the profile on these?  40?  That is the only way I get close to the RPM stated here. 

What vehicle ever got the 4.25 final ratio trans code AVX?  Seems like you could pull a nicely loaded trailer with that dude in there. 

[tyb525]

Your tire should be 155-?-15, you need that middle number to determine the diameter (height) of the tire.

[8v-of-fury]

AVX was an ecodiesel only trans wasn't it?

[TylerDurden]

What vehicle ever got the 4.25 final ratio trans code AVX?  Seems like you could pull a nicely loaded trailer with that dude in there. 

Jetta ECO. 

[tyb525]

Seems like it would be good for in-town stop and go (lower gearing, less power to get going), but too high rpm for the highway

[8v-of-fury]

Only 3-400 rpm higher than a 3.67 FD with the same .75 5th gear.

It doesn't really make a huge difference.

This same trans on a 2.0L 16v.. OMFG. 4th gear would be balls to the walls.

[libbydiesel]

I have the later FF in my Rabbit with a 1.6TD and find it plenty tall.  With stock tires it will go over 40 in second gear...  3,000 rpms @ 75 MPH.  Sounds good to me... 

Do you find the gap between fourth and fifth to be excessively large? I run 185/60r14.

I have no complaints.

[burn_your_money]

AUG trannyis what you want. came off of certain aaz powered cars

Never in Canada. AUG was a MK2 tranny.