Transmission gearing question - - 1991 Jetta N/A with A/C - IDI Engine - VWDiesel.net The IDI, TDI, and mTDI source.

• Transmission gearing question - - 1991 Jetta N/A with A/C by Rock3tman on 26 Jul, 2012 19:20
• ...the car has a AWY 020, I believe: 3.94 R&P, 3.46(1), 1.94(2), 1.44(3), 1.13(4), and .89(5).    Needs a clutch badly, so I'd like to do a 0.71(5) swap at the same time to cut down on the freeway thrash.    I understand that as a N/A it won't be able to pull ANY hills, etc.   Will any 0.71(5) fit, or what should I look for?
  
  thanks
• #1 by burn_your_money on 26 Jul, 2012 19:29
• Look for a new tranny. If you swap in a .71 or even a .75 you won't be able to downshift on the highway when you get to a hill. Technically you could, but you'd be screaming the engine and not really have any useful power. The AWY is a great tranny if all you do is city driving, but that's about it. Many gasser trannys have good ratios for a diesel. Check out www.scirocco.org/gears
• #2 by rodpaslow on 31 Jul, 2012 11:31
• I'm not sure of the code, but I have a gasser trans with the 3.667 final with a .75 5th that is just fine.  Mind you I don't have any major hills here, but it does just fine with the hill that are around here.  (1.6 na)